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BAOSTEEL METAL / STAINLESS STEEL WIRE

316L Stainless Steel Wire

UNS S31603 · LOW-CARBON Cr-Ni-Mo · ASTM A580/A580M-23

Cold-Drawn WireAnnealed / Cold-Worked OptionsCoils & Spools by OrderBulk Industrial Supply
2–3% Mo alloy referenceLow carbon C ≤0.03%
WIRE GRADE 316L / EN 1.4404

Molybdenum-bearing stainless wire for corrosion-focused fabrication, mesh and industrial components.

Source 316L stainless steel wire in agreed diameters, annealed or cold-worked conditions, surface finishes and coil or spool formats. Specify the operating environment, required wire properties and mill documentation for an accurate factory quotation.

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316L stainless steel wire coils and industrial metal spools in a steel wire processing warehouse
8 Million MTActual annual steel output across product families
1 Million MTCombined regular inventory across steel categories
500,000 m²Factory area
1,000+Company employees
PRODUCT OVERVIEW

316L Stainless Steel Wire for Industrial Conversion

Low-carbon, Mo-bearing stainless chemistry and condition-specific manufacturing requirements for wire buyers.

What Is 316L Stainless Steel Wire?

Type 316L (UNS S31603) is a low-carbon austenitic stainless steel alloyed with chromium, nickel and molybdenum. In wire form, the material is used for specified corrosion-resistant mesh, formed components and industrial wire applications. Its 2–3% molybdenum content can improve resistance to localized corrosion relative to Type 304 under appropriate service conditions.

  • Alloy: Cr 16–18%, Ni 10–14%, Mo 2–3% and C ≤0.03% under the referenced UNS wire chemistry.
  • Order form: finished coiled stainless wire; spool or reel packing is a separate commercial requirement.
  • Wire condition: annealed/Condition A or cold worked/Condition B, according to the specified tensile performance.
  • End uses: filtration mesh, formed industrial wire, ties, screens and qualified processing applications.
Material selection: 316L offers advantages over 304 in selected chloride-bearing environments, but is not immune to pitting, crevice corrosion or seawater damage. Specify chemical exposure, temperature and design requirements.

316L Wire Purchase-Order Checklist

Include the delivered wire condition and the actual operating environment alongside the grade.

On smaller screens, swipe the table horizontally to see all columns.

SpecifyBuyer requirement
GradeType 316L / UNS S31603; EN 1.4404 as a comparable designation subject to specification review
Product standardASTM A580/A580M-23 (or agreed edition)
DimensionsFinished wire diameter, roundness and permissible tolerance
ConditionAnnealed/Condition A, cold worked/Condition B and required tensile range
SurfaceCold drawn, bright/cleaned as agreed, or annealed and pickled
PackingCoil or spool geometry, winding, net unit mass and order quantity
Environment & documentsCorrosive media, operating conditions, MTC and any special inspection
SPECIFICATIONS & ORDERING

316L Stainless Steel Wire Specifications

Gauge, condition, surface and exposure criteria are all relevant to a 316L wire purchase order.

Technical Specifications

On smaller screens, swipe the table horizontally to see all columns.

ItemReference / ordering requirement
Grade / UNS316L / S31603
Material familyAustenitic low-carbon chromium-nickel-molybdenum stainless steel
Main product standardASTM A580/A580M-23
General delivery requirementsASTM A555/A555M-23
Reference inquiry diameterØ0.20–6.00 mm; availability, tolerance and condition by quotation
Product formRound finished wire in coils; other profiles subject to mill feasibility
Condition / temperAnnealed (A) / cold worked (B); final tensile requirements specified by order
SurfaceCold drawn / bright by agreement / annealed and pickled
PackingCoils, spools or reels by specification and producing-mill capability
InspectionChemistry including Mo, diameter, surface and mechanical tests by contract

The diameter list is an inquiry range only, not a live inventory list or universal manufacturing guarantee. ASTM A580/A580M addresses wire furnished in coils; straight bar stock belongs to a different product scope.

Quote a Wire Grade and Condition

  • Application: process filtration, mesh, exposed hardware, wire forms or other defined service.
  • Identify the 316L material specification, corrosion environment and acceptance criteria.
  • Confirm diameter, tolerance, cold-working condition and actual tensile requirement.
  • Define lubricant residue, cleanliness, bright finish and any chemical surface limits.
  • Agree spool bore, flange width, unit net weight, total quantity and destination.
Dedicated uses: spring and weaving wire may require ASTM A313/A313M or ASTM A478 respectively, subject to the grade and product scope of that standard.
DIMENSIONAL PLANNING

316L Stainless Wire Diameter & Theoretical Weight Chart

Indicative finished-wire diameters and estimated running mass using a 316L density reference.

On smaller screens, swipe the table horizontally to see all columns.

Nominal wire diameter (mm)Theoretical g/mkg per 1,000 mkg per 100 m
Ø0.20.2510.2510.025
Ø0.30.5650.5650.057
Ø0.51.5711.5710.157
Ø0.84.0214.0210.402
Ø16.2836.2830.628
Ø1.29.0489.0480.905
Ø1.514.13714.1371.414
Ø225.13325.1332.513
Ø2.539.27039.2703.927
Ø356.54956.5495.655
Ø4100.531100.53110.053
Ø5157.080157.08015.708
Ø6226.195226.19522.619

Theory uses a solid round wire cross-section and reference Type 316L density of 8.00 g/cm³. Actual delivered mass depends on finished tolerance and packaging.

Why wire weight matters: for thin-gauge wire, order length can reach thousands of metres per coil. Use calculated running mass to estimate consumption, then confirm the supplier’s net spool or coil weights.
Need a size not shown in the reference table?

Send the diameter, tolerance, desired condition and required weight. We will check production feasibility.

APPLICABLE STANDARDS

ASTM A580, A555, A313 and A478: Select the Right Scope

Separate general wire supply from specific spring-wire, weaving-wire and straight bar product standards.

Wire Standards by End Use

On smaller screens, swipe the table horizontally to see all columns.

StandardIntended relevance
ASTM A580/A580M-23General stainless steel wire, including round and certain shaped wire in coils.
ASTM A555/A555M-23General delivery requirements for stainless steel wire and wire rod; the specific material standard takes priority.
ASTM A313/A313M-18(2025)Stainless spring wire; use when the actual application calls for spring-wire requirements.
ASTM A478-97(2019)Chromium-nickel weaving and knitting stainless steel round wire.
ASTM A276/A276M-25Stainless steel bars and shapes; separate from coiled wire supply.

How to Write a Clear Specification

For general-purpose 316L wire, order by ASTM A580 grade and condition. Do not substitute plate or bar tensile properties for finished wire acceptance.

  • Start with Type 316L / UNS S31603 and the target application.
  • Name ASTM A580/A580M edition for general-purpose wire supply.
  • Add diameter, tolerance, cross-section and surface condition.
  • Agree required tensile range, inspection plan and spool/coil configuration.
  • For weaving or spring products, agree the specific wire standard and certification package.
Hierarchy: where referenced ASTM general requirements and material requirements conflict, apply the specific material standard first.
COMPOSITION

316L Stainless Steel Wire Chemical Composition

Molybdenum 2–3% and maximum carbon 0.03% are important differentiators from Type 304.

Type 316L / UNS S31603 Chemistry (wt. %)

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ElementReference Type 316L composition
Carbon (C)≤0.030
Manganese (Mn)≤2.00
Phosphorus (P)≤0.045
Sulfur (S)≤0.030
Silicon (Si)≤1.00
Chromium (Cr)16.00–18.00
Nickel (Ni)10.00–14.00
Molybdenum (Mo)2.00–3.00
Nitrogen (N)≤0.10

Reference AISI/UNS chemistry for Type 316L stainless wire. EN 1.4404 has its own specification limits; the agreed ASTM/EN edition and actual mill heat analysis govern acceptance.

Why Molybdenum and Low Carbon Matter

316L combines an austenitic Cr–Ni base with molybdenum for better localized corrosion resistance in many environments than 304. Low carbon reduces the risk of weld-related chromium carbide sensitization, while finish and conditions of exposure still matter.

  • Cr 16–18%: supports the passive chromium-oxide protective film.
  • Ni 10–14%: supports austenitic stability and practical wire formability.
  • Mo 2–3%: adds resistance to pitting in selected chloride-containing environments.
  • C ≤0.03%: low-carbon control relevant to welded products and sensitization resistance.
  • Traceability: request the measured Cr, Ni, Mo and C values on the mill report.
316L is not automatically suitable for prolonged seawater immersion, concentrated chloride solutions, or all chemical exposures. Final grade selection requires review of temperature, crevices, cleaning agents and design life.
STRENGTH & DUCTILITY

316L Stainless Steel Wire: Annealed vs Cold Worked

Specify the finished-wire diameter, condition and mechanical acceptance rather than quoting a generic 316L strength value.

Properties Depend on Finished Temper

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Delivered conditionWhat to specify
Annealed / Condition AAnnealed as a final heat treatment, potentially followed by a light finishing draw; suited to qualified soft forming requirements.
Cold-worked / Condition BCold drawing raises strength and changes ductility. Confirm diameter-specific tensile range and test acceptance.
Special weaving-wire conditionAgree the applicable dedicated weaving-wire specification where required and confirm 316L grade applicability.
Special spring-wire enquiryConfirm grade eligibility under ASTM A313/A313M, spring tensile range and fatigue/coil test requirements; 316L general-use wire is not automatically spring wire.

ASTM A580/A580M classifications identify manufacturing/heat treatment conditions. Specific tensile, yield and elongation acceptance depends on the contracted edition, finish and wire size.

Wire Testing Questions

  • Will the wire be woven, welded, twisted, formed or drawn again?
  • What wire diameter and tolerance are required at the point of use?
  • Which Rm range, elongation, bend test or formability trial is specified?
  • Is the environmental exposure chloride-bearing, chemical, wet or warm?
  • Does the customer need material samples and coil-level test traceability?
Correct comparison: material properties for annealed 316L plate or bar, and those for specially hardened spring wire, are not universal mechanical guarantees for finished 316L wire.
SURFACE & TOLERANCE

Bright, Cold-Drawn and Annealed Wire Surface Options

Industrial wire surface and dimensional tolerances should match the buyer’s processing route.

Close detail of clean bright 316L stainless steel wire showing uniform round gauge and smooth metallic finish
SURFACE QUALITY

Surface Finish and Diameter Control

Fine wire surfaces affect downstream weaving, forming and appearance. Confirm processing lubricants, handling marks, scratches and tolerance before order confirmation.

  • Cold-drawn finish: may retain process lubricant unless cleaning is specified.
  • Special bright finish: agree cleaning and brightness expectations with the producing mill.
  • Annealed and pickled: may show a dull matte appearance.
  • Dimensional control: specify diameter tolerance, roundness and inspection method.
  • Cleanliness: confirm whether special residue limits are required for downstream applications.
DELIVERY CONDITIONS

316L Stainless Steel Wire Supply Forms

Choose the material condition and precise winding format before agreeing production and packing.

Soft annealed 316L stainless wire coiled in neat circular layers on an industrial work surface

Annealed / Soft Wire

For bending and forming requirements, with a lower-strength condition agreed by order.

Bright cold drawn 316L stainless steel wire wound onto a metal supply spool

Bright Drawn Wire

Cold-drawn appearance and spool presentation, with lubrication and cleanliness defined in the purchase order.

Cold worked 316L stainless steel wire supplied in compact coils in a metalworking plant

Cold-Worked Wire

For applications that require a specified higher-strength wire condition and finished diameter.

These are condition and presentation examples. Coil, spool, reel, cleaning and winding options depend on finished diameter, order size and the actual producing plant.
GRADE COMPARISON

316L vs 304 Stainless Steel Wire

Compare molybdenum and carbon chemistry first, then specify the correct wire gauge, temper and processing requirements.

316L Wire vs 304 Wire

On smaller screens, swipe the table horizontally to see all columns.

Feature316L stainless wire304 stainless wire
UNSS31603S30400
Chromium (%)16.0–18.018.0–20.0
Nickel (%)10.0–14.08.0–10.5
Molybdenum (%)2.0–3.0No intentional main-alloy Mo requirement
Carbon maximum (%)0.030.08
Typical selection focusBetter localized corrosion resistance in selected service, low-carbon welding requirementsGeneral-purpose industrial corrosion resistance and forming

These are ASTM/UNS grade chemistry comparisons; verify the selected material standard and actual test results. Both wire grades need condition-specific mechanical requirements.

Which Stainless Wire Should You Specify?

Choose 316L where the engineering specification calls for a molybdenum-bearing grade, improved pitting resistance in an evaluated environment, or low-carbon material control. Type 304 may be cost-effective for less aggressive conditions.

  • Document actual chloride level, cleaning chemicals, temperature and service life.
  • Compare 316L and 304 quotes with the same wire diameter, temper and packing.
  • Specify chemical limits, wire surface and required tensile range independently.
  • Conduct service or fabrication testing where performance is critical.
Compare 304 Stainless Steel Wire
INDUSTRIAL APPLICATIONS

Where 316L Stainless Steel Wire Is Used

Mo-bearing stainless wire supports selected corrosion-sensitive industrial fabrication and mesh applications.

316L stainless steel woven mesh and wire formed components on a production bench
APPLICATION 01

Industrial Filtration & Screening

Wire mesh for compatible chemical or wet-service filters, with diameter, mesh grade and corrosion exposure confirmed.

APPLICATION 02

Chemical Equipment Wire Forms

Bendable wire clips, supports and formed parts in appropriately selected process equipment.

APPLICATION 03

Food-Processing Equipment Parts

Wire components and mesh for suitably specified processing equipment; hygienic design and food-contact compliance are separate checks.

APPLICATION 04

Process Screens & Woven Mesh

Woven stainless mesh feedstock where softness, diameter consistency and surface cleanliness are controlled.

APPLICATION 05

Industrial Ties & Fastening

Corrosion-resistant ties and fabricated wire accessories in a qualified operating environment.

APPLICATION 06

Special Wire Processing

Drawn and mechanically formed products with order-defined tensile, surface and any specialized product standard.

Applications describe potential material use only. Finished assemblies, mesh and springs may require their own product and inspection standards.

HOW IT IS MADE

316L Stainless Wire Drawing & Finishing Process

Wire drawing, annealing and finishing must deliver the specified dimension, condition and surface quality.

Fine stainless steel wire drawn through industrial wire drawing machinery and guide rollers
WIRE PRODUCTION

From Stainless Wire Rod to Finished Fine Wire

Finished 316L wire is produced from suitable stainless feedstock using cleaning, controlled drawing, annealing where needed, dimensional verification and approved winding. The chosen process must preserve traceability of the molybdenum-bearing alloy.

  • Incoming grade and material identification.
  • Drawing reduction schedule based on diameter and target temper.
  • Annealing or further cold work where needed for the specified condition.
  • Surface finishing and dimensional verification.
  • Coil/spool winding, batch identification and inspection records.
The exact drawing schedule, heat treatment and line configuration vary by manufacturing mill and purchased grade.
WHY BAOSTEEL METAL

Manufacturing Scale and Reliable Procurement Planning

Clear specification control and practical industrial export coordination.

01 / CAPACITY

Established Steel Production

8 million MT actual annual output across the company’s steel product families, supporting industrial procurement coordination.

02 / INVENTORY

Consolidated Steel Inventory

1 million MT combined regular inventory across categories. Actual 316L wire gauge and temper availability is verified for each enquiry.

03 / QUALITY

Order-Specific Inspection

Specify heat analysis, diameter tolerance, surface acceptance, tensile test and documentation before confirmation.

04 / DELIVERY

Industrial Export Coordination

Clarify packing, spool dimensions, container plans, delivery port and material traceability for overseas shipments.

WEIGHT & QUANTITY TOOLS

316L Stainless Steel Wire Weight Calculator

Use the 316L reference density for theoretical length weight or calculate total spool mass from the buyer’s packing inputs.

01 / Wire Length-Based Weight Estimate

Calculate theoretical mass from finished solid round 316L wire diameter and total length.

Estimated total mass— MT
— g/mTheoretical running mass
— kgTotal mass

Formula: kg/m = π/4 × d(mm)² × 0.00800. Reference density 8,000 kg/m³ (8.00 g/cm³). Actual wire mass varies with final gauge and weighing.

02 / Spool or Coil Order Mass

Estimate purchase quantity from a buyer-entered unit net mass and the number of spools or coils.

Estimated net order weight— MT
— kgNet kilograms
— unitsSpool or coil count

Spool/coil mass is only the customer’s input; it is not a claimed standard pack size or available-stock weight. Packing tare and shipping gross weight are separate.

Have a wire drawing or mesh production requirement?

Send the finished diameter, temper, surface and coil/spool limits together with total weight.

MANUFACTURING

316L Stainless Steel Wire Production & Finishing

Wire production requires gauge control and coordination between material condition and final application.

Steel wire drawbench and take up spool during industrial stainless wire production
PROCESS CONTROL

Consistent Gauge, Finish and Material Identification

Production planning should connect alloy chemistry with the target finished diameter, condition and winding arrangement. Confirm the manufacturing route and acceptance tests for your chosen wire product.

  • Traceability of incoming 316L stainless material and heat analysis.
  • Cold drawing passes and dimensional checks as applicable.
  • Annealing and surface treatment to the agreed condition.
  • Inspection of scratches, winding damage and package identity.
SUPPLY & STOCK

Confirm 316L Stainless Wire Inventory by Specification

Actual supply depends on wire diameter, condition, net spool or coil mass, quality requirements and order date.

Availability Must Match Diameter and Temper

Company-wide stock figures cover many steel product categories; they do not establish immediate availability of every 316L wire diameter, spool format or temper.

  • Specify diameter and allowed deviation.
  • Provide temper / tensile target and preferred surface finish.
  • Indicate total quantity and target unit spool or coil mass.
  • State whether sample delivery, traceability or third-party testing is required.
  • Share destination and required shipment schedule.
Stainless steel wire spools and coiled wire packed in an industrial warehouse

Stock, minimum production quantity and lead time are confirmed for the actual specification and delivery window.

QUALITY & DOCUMENTATION

316L Stainless Wire Testing and Mill Certificates

Verify Mo-bearing chemistry, finished-wire condition, dimensional conformity and coil/lot identification.

Quality Inspection Checklist

  • Heat or lot identification associated with the material certificate.
  • Chemical composition, especially Cr, Ni, Mo and low carbon, matched to the agreed wire specification.
  • Diameter, ovality/roundness and tolerance as contracted.
  • Cold-drawn or annealed condition and required tensile test results.
  • Surface defects, wire winding, corrosion, cleanliness and damage checks.
  • Optional third-party witnessing or inspection documents where agreed.
Test certificates and third-party approvals must be confirmed for each actual producing mill and shipment. No universal certification for this product is implied.

Material Traceability

Request a packing and inspection record that connects each coil or spool to the supplied lot/heat and test documents.

Technician using micrometer to measure small stainless steel wire diameter in a quality inspection laboratory
Need a special wire tensile or surface test?

Attach your drawing or acceptance specification and specify the report format before production.

OPTIONAL SERVICES

Stainless Wire Customization and Processing Coordination

Limit additional services to feasible, specification-defined operations rather than broad fabrication promises.

Cutting & Straightening

Feasibility-dependent straight lengths or cut pieces can be quoted separately, with the required tolerance and length.

Surface / Cleaning Options

Discuss lubricant removal, bright finish or other cleaning requirements when the downstream process requires them.

Coil / Spool Configuration

Agree winding direction, bore size, flange requirements and net unit mass before the production schedule is fixed.

All processing options depend on actual gauge, temper, capacity, quantity and producing-mill capability.

PACKING & EXPORT

316L Stainless Steel Wire Coils & Spool Packaging

Practical packing helps limit handling damage to thin-gauge finished wire.

Protected industrial stainless steel wire coils and spools secured on export packing pallets
EXPORT DELIVERY

Spool Protection, Labels and Shipment

Wire may be shipped on approved spools, reels or coils with packaging designed for the requested diameter, temper and destination. Confirm packing requirements during quotation.

  • Coil or spool dimension, winding and package weight limits.
  • Protective wrapping and handling compatible with surface finish.
  • Lot, gauge, grade and package number matched to the packing list.
  • Containerization, pallet loading and unloading method.
  • Shipment documents and approved inspection results per contract.
BULK PROCUREMENT

316L Stainless Steel Wire RFQ Checklist

List the corrosion environment, grade, wire condition and package geometry to obtain a comparable quotation.

Send These Wire Details

  1. 01 Type 316L / UNS S31603 and required ASTM edition.
  2. 02 Wire diameter and required tolerance.
  3. 03 Annealed, cold-worked or specified tensile strength range.
  4. 04 Corrosive media, cleaning, surface finish and fabrication process.
  5. 05 Coil or spool bore/outer diameter and net unit mass.
  6. 06 Total kilograms/metric tons, MTC, port and desired delivery schedule.

Get a Comparable Factory Quotation

Send a single specification with the grade, finished dimension, required property and winding arrangement. The sales team can then check production feasibility and quotation terms without inventing an available gauge or stock quantity.

Your original drawings and technical documents can be attached through the global enquiry form when that option is enabled for the website.

Email: [email protected]

WhatsApp: +86 133 7050 3400

BUYER QUESTIONS

316L Stainless Steel Wire FAQs

Material selection, wire condition, corrosion exposure, dimensions and packing questions for industrial buyers.

FREQUENTLY ASKED

316L Stainless Steel Wire FAQ

Technical answers for procurement teams selecting wire condition, dimension and coil packaging.

What is 316L stainless steel wire?

It is finished wire made from low-carbon molybdenum-bearing Type 316L (UNS S31603) stainless steel, commonly ordered in coils or on spools with a specified tensile condition.

Which ASTM standards apply?

ASTM A580/A580M-23 covers general stainless steel wire; ASTM A555/A555M-23 covers general wire and wire rod requirements. Spring and weaving wire may need separate specifications.

What is the difference between 316L and 304 wire?

316L adds approximately 2–3% molybdenum and has a maximum carbon limit of 0.03%, compared with Type 304 which has no main Mo requirement and a 0.08% carbon limit.

What is the chemical composition of 316L?

The reference wire chemistry includes Cr 16–18%, Ni 10–14%, Mo 2–3% and C ≤0.03%, subject to the agreed material specification.

Is 316L wire suitable for marine environments?

It can outperform 304 against pitting in many environments but is not automatically suitable for seawater immersion, concentrated chlorides or crevice-prone assemblies. Confirm service conditions with an engineer.

Can 316L wire be supplied soft or cold worked?

Annealed/Condition A and cold-worked/Condition B are distinct order conditions. Exact tensile behavior depends on finished diameter, reduction and the applicable specification.

Can 316L wire be used for woven mesh?

It can be used as feedstock for suitable woven mesh products when wire gauge, tensile condition, surface and the applicable weaving-wire requirements are agreed.

Is 316L wire a spring wire?

Not automatically. If spring use is required, confirm material-grade applicability under ASTM A313/A313M and specify the needed tensile and coil-test requirements.

Which diameters are available?

The page lists an indicative inquiry range of 0.20–6.00 mm. Actual production/stock, tolerance, condition and coil weight are confirmed for each RFQ.

How do I calculate 316L wire weight?

For solid round wire and a reference density of 8.00 g/cm³, kg per metre is approximately 0.006283 × diameter(mm)². Net delivery mass depends on actual gauge and weighing.

Can you provide MTC and inspection reports?

Request the material certificate format, heat analysis including Mo, mechanical tests and dimensions. The documents available are verified for the actual producing mill and shipment.

What details should I include in a bulk quotation request?

Provide the grade and standard, diameter/tolerance, annealed or cold-worked condition, application/exposure, surface, coil/spool specification, order weight, MTC and destination.

BAOSTEEL METAL / WIRE PROCUREMENT

Request Your 316L Stainless Steel Wire Quote

Send the finished diameter, annealed or cold-worked condition, surface requirements, net spool/coil mass, total order weight and destination. Our team will confirm feasible supply and quotation terms.

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