Ferritic structure
Useful when a magnetic stainless surface is desirable. Specify guaranteed permeability separately if a technical design requires it.
Global Steel Supply & Processing
UNS S43000 | ASTM A240/A240M-26 | 16–18% CHROMIUM
430 STAINLESS / APPLIANCES / INDUSTRIAL FABRICATION
Specify 430 stainless steel coil for appliance panels, kitchen equipment, decorative metalwork and formed components. Share your target thickness, width, surface finish, coil weight and destination for a tailored bulk quotation.
View specifications ↓Confirm the actual coil format, surface quality and material standard before placing a bulk order. Availability and exact tolerances are quoted against your required dimensions.
| Specification | 430 Coil — Ordering Reference |
|---|---|
| Grade / UNS | Type 430 / UNS S43000 — magnetic ferritic stainless steel |
| European designation | EN 1.4016 — related grade; confirm EN 10088 requirements separately |
| Product specification | ASTM A240/A240M-26 — stainless plate, sheet and strip |
| General delivery requirements | ASTM A480/A480M-25b — flat-rolled stainless requirements |
| Material form | Cold-rolled or hot-rolled stainless steel coil; confirm finish and temper |
| Example thickness for RFQ | 0.30–3.00 mm cold-rolled; other gauges and hot-rolled coils by quotation |
| Example coil width for RFQ | 600 / 1000 / 1219 / 1250 / 1500 mm; slit widths subject to production confirmation |
| Coil inside diameter | 508 mm / 610 mm commonly requested; verify for selected line and order |
| Single-coil net mass | Project-defined; individual weight range to be confirmed before order |
| Surface finish | 2B, BA, No. 1, No. 4, brushed/polished as specified and available |
| Edge condition | Mill edge or slit edge; identify required burr and edge tolerances |
| Inspection documents | MTC, heat number, chemical analysis, tensile test or additional tests as contracted |
| Ordering units | Metric tonnes; shipment and packing terms confirmed in quotation |
430 is supplied as a ferritic grade for applications that benefit from a magnetic, chromium-bearing stainless surface. Specify finish and forming requirements together with dimensions.
The dimensions are quotation examples, not a real-time stock guarantee.
These mass-percent limits are reference values for ASTM Type 430 flat-rolled stainless products. The purchase standard and certified heat analysis determine acceptance.
| Element | Mass % | Procurement Significance |
|---|---|---|
| Chromium (Cr) | 16.00–18.00% | The principal alloying element supporting passivation |
| Carbon (C) | ≤0.12% | Control contributes to material properties and processing response |
| Nickel (Ni) | ≤0.75% | Low-nickel ferritic composition; not a zero-nickel guarantee |
| Manganese (Mn) | ≤1.00% | Specified residual/alloy balance |
| Silicon (Si) | ≤1.00% | Processing and alloy composition limit |
| Phosphorus (P) | ≤0.040% | Residual element limit |
| Sulfur (S) | ≤0.030% | Residual element limit |
| Iron (Fe) | Balance | Base metallic matrix |
Its iron-chromium ferritic structure gives it magnetic behavior and a different forming and corrosion profile from nickel-bearing 304 or 316L.
Properties below apply to relevant annealed 430 flat products. Thin gauges can have different elongation requirements and EN specifications use their own criteria.
| Test Item | 430 Reference | Interpretation |
|---|---|---|
| Ultimate tensile strength (Rm) | ≥450 MPa | Annealed Type 430 flat-product reference minimum |
| 0.2% yield / proof strength | ≥205 MPa | Reference for annealed material |
| Elongation | ≥22% | General annealed sheet/strip reference |
| Thin sheet / strip elongation | ≥20% | ATI note for thickness ≤1.27 mm (0.050 in.) |
| Hardness | ≤89 HRB | Reference maximum according to ATI product data |
| Nominal density | 7.70 g/cm³ | For theoretical coil mass and running-length estimates |
| Room-temperature magnetic behavior | Ferromagnetic | Typical ferritic structure; no guaranteed permeability supplied |
| Heat treatment response | Non-hardenable by conventional quench-hardening | Mechanical properties can change with cold deformation |
430 is different from cold-work-hardenable austenitic grades. For demanding bends, draws or welded fabrication, provide the finished-part design and required test method.
A coil can look similar in its polished condition while its microstructure, magnetic response and corrosion behavior are materially different.
430 has a ferritic iron-chromium structure and normally attracts a magnet. Annealed 304 is mainly austenitic and normally has a much lower magnetic response, although cold working can change it.
For moderately corrosive indoor service, 430 offers a practical stainless finish and good fabrication potential. For higher chloride exposure, severe moisture, certain chemicals or demanding welding, a different grade may be necessary.
Useful when a magnetic stainless surface is desirable. Specify guaranteed permeability separately if a technical design requires it.
Appropriate for selected appliance, kitchen and indoor decorative applications when routine cleaning and exposure are compatible.
Rolled edges and uncomplicated forming are common. Welded or deep-drawn parts need the process and any qualification documented.
Choose the mill or decorative finish according to forming, appearance and cleaning conditions. A similar finish name does not guarantee the same visual acceptance across mills.
A common smooth mill finish for appliance internals, metal forming and subsequent finishing. Confirm surface inspection criteria for visible panels.
Bright, reflective finish used in selected decorative and appliance applications. Specify protective film and acceptable cosmetic condition.
Heat-treated and descaled hot-rolled appearance for appropriate gauges and industrial work.
Directional brushed surface for visible panels and trim; provide grain orientation and sample reference.
Qualify surface grade, finish process, protection film and achievable appearance before order.
Share a sample or target finish code, especially for cosmetic applications and repeat contracts.
Detailed procurement information makes the quotation more useful for your slitting, stamping, polishing and transport requirements.
Specify Type 430 / UNS S43000, the applicable edition of ASTM A240/A480 or your separately agreed EN specification.
List gauge, ordered width, tolerance category, mill or slit edge, coil ID, and maximum permissible individual net weight.
Set 2B, BA, No. 1, No. 4 or qualified polish. State whether film, paper interleaving or visual inspection is needed.
Declare bend radii, draw severity, weld procedure or material sampling needs for the finished component.
430 offers an effective stainless grade for selected mildly corrosive indoor environments. Confirm corrosion, cosmetic and forming performance for each final component.
430 is commonly selected where a consistent stainless appearance, general forming performance and practical resistance to mild corrosion are important. Finished-part suitability depends on exposure, cleaning practice, joint design and surface condition.
Visible and internal metal components requiring planned surface appearance and repeatable dimensions.
Panels, trims and selected parts for mild indoor-service conditions, with cleaning and hygiene needs assessed.
Brushed or bright decorative features where grain direction, finish consistency and protection film matter.
Selected low-corrosion-exposure trim, covers and pressed components matched to part drawings.
Slitting, blanking, bending and formed components supplied from coil feedstock.
Repeat supply organized by grade, mill finish, slit width, coil weight and documentation.
Estimate how much strip length a selected coil mass provides for slitting, stamping or inventory planning. Packaging and actual width/thickness deviations are excluded.
Enter nominal dimensions, net steel mass per coil and coil count. The calculator updates automatically using the reference density of 7.70 g/cm³.
Planning estimate using uniform nominal dimensions and net steel mass only. Actual weight depends on production tolerance and weighing.
kg per running metre = thickness (mm) × width (mm) × 0.00770.
Running length (m) = net coil kg ÷ kg per metre.
For consistent downstream processing, specify the material condition and finished surface rather than assuming all 430 coils have the same rolling route.
430 coil can be ordered in cold-rolled or hot-rolled condition. Final finish and temper depend on rolling, heat treatment, surface treatment and any requested polishing.
Chemical composition and grade identity established at material production stage.
Thickness and width chosen to suit conversion yield and finished part dimensions.
Annealing, descaling, finishing and protection planned for the selected surface category.
Coil identification, dimensions, MTC and shipping configuration verified against the order.
Our steel business supports grade-specific procurement, consistent order documentation and export supply coordination; 430 availability is always confirmed for the requested specification.
Coordinate bulk procurement using the broader group production and supply system. Specific 430 coil availability is confirmed per inquiry.
About BAOSTEEL METAL →Communicate ferritic chemistry, finish condition, magnetic expectations and dimensions in the same purchase specification.
Quality Control →Request edge, slit-width, protective film and packing arrangements compatible with your stamping or panel operations.
Confirm individual coil mass, ID, packing, shipping documents and destination-specific handling before production release.
Processing is quoted as an order-specific option. List edge, tolerances, cosmetic finish and packing so the finished coil is practical for your line.
State the target slit width, edge burr limits, final winding and number of slit coils.
Provide sheet length, flatness and stack protection requirements for converting coil into blanks.
Describe No. 4 / brushed / mirror target, grain direction and an agreed acceptance sample.
Specify removable film, paper interleaf or other surface-care needs for appearance-critical work.
Availability, processing method, tolerances and yield are quoted after technical review.
The supplier, purchaser and inspection agency should agree the grade, finish and test requirements before shipment, especially for visible appliance parts.
For stainless feedstock, confirm that the documentation reflects the actual heat, applicable product standard and delivered coil condition. Magnet response alone cannot identify or certify Type 430.
For accurate delivery planning, specify the exact coil rather than relying on a broad grade-level stock claim.
General company-wide steel inventory figures describe the wider business, not a guarantee of immediate 430 stock. Ask for a specific availability check using the required grade, finish, gauge, width, coil ID and total quantity.
BA, brushed and other appearance-sensitive surfaces benefit from packing details agreed before production release and shipping.
Select packaging based on surface finish, individual coil mass, sea-freight moisture exposure and unloading equipment. Protective measures are confirmed for each shipment.
Compare 430 with 201, 304 and 316L by structure, service conditions, finish and downstream processing.
Answers cover grade selection, magnetism, finish, inspection and shipment planning. Send a technical specification when you need a contract-specific response.
Yes. Standard Type 430 has a ferritic structure and normally has a strong magnetic response. A simple magnet test is not a substitute for grade identification or a material certificate.
430 is a ferritic chromium stainless grade and is normally magnetic. 304 is an austenitic chromium-nickel grade; it generally offers broader corrosion resistance in challenging environments. Choose according to the finished part and exposure.
ASTM A240/A240M covers stainless plate, sheet and strip chemistry and mechanical requirements. ASTM A480/A480M provides general flat-rolled delivery requirements. EN 1.4016 orders should cite their own EN standards.
Typical requests include 2B, BA, No. 1, No. 4 and decorative polishing. Availability depends on thickness, width, coil condition and finishing route.
Welding may be possible, but weld-zone behavior and corrosion resistance require application-specific review. Supply drawings, section thickness and the welding procedure before specifying welded parts.
No. 430 is commonly used in mildly corrosive indoor environments, whereas 316L provides a different alloy system with molybdenum for improved performance in certain corrosive environments. Service suitability must be assessed.
Divide net coil mass in kilograms by thickness (mm) × width (mm) × 0.00770. The 0.00770 constant uses the reference 430 density of 7.70 g/cm³.
Slitting may be arranged subject to feasible width, edge quality, quantity, winding requirements and processing confirmation.
Depending on the agreed inspection document, it may contain grade, heat or batch reference, composition, mechanical results and coil identification. State your required documentation on the RFQ.
BA can offer a bright reflective appearance, but cosmetic acceptance also depends on handling, film protection, visual inspection criteria and finishing consistency.
Share grade, standard, thickness, width, finish, individual coil weight, total tonnage and destination. A quote can then confirm current availability or production lead time.
Provide the material designation, dimensions, surface, edge, coil ID, net tonnes, inspection needs, packing, destination port and requested delivery terms.
Send the grade, ASTM or EN specification, thickness × width, surface finish, coil ID, net weight per coil, total quantity and destination. Add the finished-part drawing or cosmetic requirements when relevant.
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Send your required grade, dimensions, quantity and destination. Our team will review the inquiry.