HEAT-RESISTANT STAINLESS STEEL · ASTM A240

310S Stainless Steel Plate

UNS S31008 · 24–26% Cr · 19–22% Ni · BAOSTEEL METAL

ASTM A240/A240MHigh-Cr & High-NiFactory Supply
FURNACE & HEAT-TREATMENT PROCUREMENT

Build Your High-Temperature Plate Order with Confidence.

Source 310S stainless steel plate for industrial furnace components, heat-treatment equipment and high-temperature fabrication. Share your thickness, plate sizes, quantity and operating conditions for a factory quotation.

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8 Million MTActual Annual Steel Production
1 Million MTRegular Steel Inventory
500,000 m²Factory Area
1,000+Employees
MATERIAL & ORDER DATA

310S Stainless Steel Plate Specifications

Review the alloy grade, material standard, plate dimensions and inspection scope in one place.

Product310S Stainless Steel Plate
Grade / UNSAISI 310S / UNS S31008
Applicable StandardASTM A240/A240M; ASME SA-240 when specified
General RequirementsASTM A480/A480M where applicable
Material FamilyHeat-resistant austenitic chromium–nickel stainless steel
Supply FormFlat plate / sheet; cut-size blanks by enquiry
Plate SizeSpecify thickness × width × length
Mill SurfaceNo. 1 / 1D hot-rolled annealed and descaled; other finishes by enquiry
Quality DocumentsMTC, heat traceability and testing scope as agreed
PURCHASE LIST

Send the Details That Set Your Quote

Our quotation is based on the plate specification and delivery requirements you send.

  • 310S / UNS S31008 and the standard edition
  • Thickness, width, length and piece count or MT
  • Furnace atmosphere and service temperature
  • Surface finish, cut schedule and drawing
  • MTC requirements and destination port
HIGH-TEMPERATURE SELECTION

A Chromium–Nickel Grade for Furnace Service

High chromium and nickel levels support oxidation resistance in properly specified high-temperature applications.

24–26% Chromium

Supports protective oxide-scale formation in high-temperature oxidizing environments.

19–22% Nickel

Supports austenitic stability and material behavior at elevated temperatures.

310S Low-Carbon Grade

Maximum 0.08% carbon per ASTM plate grade; request welding and fabrication acceptance requirements with your order.

Outokumpu lists its Therma 310S/4845 product for applications up to approximately 1050°C under stated service conditions. Your design temperature, gas composition, thermal cycling and mechanical loading determine the material selection.
UNS S31008

310S Chemical Composition

Chemical analysis by weight for grade 310S in the applicable ASTM flat-rolled product specification.

Element310S requirementElement310S requirement
Chromium (Cr)24.0–26.0%Nickel (Ni)19.0–22.0%
Carbon (C)≤ 0.08%Silicon (Si)≤ 1.50%
Manganese (Mn)≤ 2.00%Phosphorus (P)≤ 0.045%
Sulfur (S)≤ 0.030%Iron (Fe)Balance

Actual heat analysis and accepted product tolerances are documented against the standard edition specified in your purchase order.

MECHANICAL PROPERTIES

310S Plate Mechanical Requirements

Published annealed plate reference values for ASTM A240 grade 310S.

PropertyMinimum / maximum
0.2% Yield Strength205 MPa minimum
Tensile Strength515 MPa minimum
Elongation40% minimum
Hardness95 HRB maximum
Nominal Density8.03 g/cm³ (8030 kg/m³)

Define Acceptance Before Production

Send your standard edition, delivery condition and inspection list. Material tests and supporting documentation are confirmed for the supplied product.

  • Heat analysis and mechanical test records
  • Plate thickness, flatness and dimensional tolerance
  • Inspection and acceptance requirements
Quality Control →

Ambient-temperature mechanical values relate to annealed 310S plate. High-temperature design properties are established separately for the specified operating conditions.

PLATE CONDITION

Inspect the Finish, Face and Plate Edges

Specify the actual plate surface and dimensional acceptance standard when you send the RFQ.

No. 1 / 1D Mill Surface

Mill finish for many heavy-gauge industrial plates.

Plate Thickness & Edges

Match nominal thickness and dimensional tolerance.

Specified Sheet Finish

Confirm finish availability for your selected gauge.

APPLICATIONS

310S Plate for Furnace and Thermal Equipment

Select the plate thickness and inspection scope around your equipment design and exposure conditions.

Industrial Furnace Liners

Furnace panels, liners and hot-face components.

Heat-Treatment Trays

Trays, baskets and heat-processing fixtures.

Kiln Equipment

Specified kiln liners, covers and internal steel sections.

Hot-Gas Duct Components

Panels and duct sections exposed to elevated process-gas temperatures.

Thermal Shields

Heat shields, baffles and hot-zone equipment protection.

Industrial Ovens

Oven panels, thermal processing parts and selected support items.

Send your service temperature, atmosphere and drawings with the 310S plate enquiry.

GRADE COMPARISON

310S and Related Stainless Grades

Select the grade from your applicable design standard and material requirements.

GradeComposition / usage emphasisProduct page
310S / S31008High Cr/Ni austenitic stainless for oxidation-resistant high-temperature componentsCurrent product
321 / S32100Titanium-stabilized stainless for selected welded and thermal-service assemblies321 Plate →
304 / S30400General-purpose chromium–nickel stainless fabrication304 Plate →
316L / S31603Low-carbon molybdenum-bearing plate for designated corrosion service316L Plate →

Each grade follows its own material specification and acceptance requirements.

WHY BAOSTEEL METAL

Factory Capacity Behind Your 310S Plate Purchase

Company-wide manufacturing and inventory operations support structured steel procurement.

8 Million MT Annual Output

Actual annual steel production across our company product portfolio.

1 Million MT Regular Inventory

Company-wide stock organization for planned procurement; confirm 310S by grade, size and finish.

Material Documentation

Specify mill certificates, heat identity and dimensional acceptance in your purchase order.

Export Coordination

Arrange packing, shipment quantities and destination conditions in the same enquiry.

PRODUCTION & INVENTORY

Plan the Plate Size and Delivery Schedule

Share thickness, width, length, heat-resistant application, quantity and destination. Our team will confirm the available supply route, delivery schedule and inspection scope for your project.

  • Grade 310S / UNS S31008 supply confirmation
  • Production or stock arrangements by plate size
  • Shipment quantities and packing requirements
Manufacturing
QUALITY & INSPECTION

Match the Heat Number to the Material Certificate

Set the acceptance scope for heat analysis, tensile testing, plate dimensions and surface condition. Add any third-party inspection requirements to your RFQ.

  • MTC and heat number identification as specified
  • Grade and surface-condition verification
  • Inspection milestones and third-party testing by agreement
Quality Control
OPTIONAL PROCESSING

Add Cut Sizes to Your 310S Steel Plate Enquiry

Include drawing references and finished dimensions when your order requires plate blanks or fabricated profiles.

Laser Cutting

Precise profiles for applicable sheet and plate thicknesses. Confirm method and tolerance with your order.

Plasma Cutting

Profile cutting for selected heavier stainless plate sizes. Confirm method and tolerance with your order.

Cut-to-Size & Drilling

Specified flat blanks, hole patterns and plate shapes. Confirm method and tolerance with your order.

Send the drawings and cutting schedule with your material list.

NOMINAL MASS

Calculate 310S Stainless Steel Plate Weight

Estimate plate mass from your dimensions and piece count using a nominal density of 8,030 kg/m³.

—Nominal mass in metric tons (MT)

Formula: thickness × width × length × quantity × 8,030 / 10¹² = MT (dimensions in mm). Final shipment weight follows the agreed weighing basis.

Send Your Material Schedule

Include your dimensions, piece quantities, mill surface, inspection and delivery terms.

  • Part and drawing reference
  • Required plate size and quantity
  • Purchase standard and MTC requirements
  • Destination port or shipping terms
PACKING & EXPORT

Prepare Your 310S Plate for Shipment

Share the shipment lot, surface protection and unloading requirements. Packing arrangements are confirmed for the finished plate size and your delivery terms.

  • Surface protection and edge guards as specified
  • Bundle identification and material documentation
  • Shipment planning by size, weight and destination
BUYER QUESTIONS

310S Steel Plate Purchasing

What information should I provide for a 310S plate quotation?

Share your UNS S31008 requirement, plate size, quantity, surface finish, service temperature, atmosphere and destination.

What are the principal alloying elements in 310S?

ASTM 310S contains 24.0–26.0% chromium and 19.0–22.0% nickel. Request the heat analysis with your MTC.

Which inspections can be included in my order?

List the required standard, heat identification, mechanical tests, plate tolerances and third-party inspection in your RFQ.

BULK ORDER ENQUIRIES

Get a 310S Plate Factory Quote

Send your product specification, thermal duty, quantity and delivery destination for a quotation from BAOSTEEL METAL.

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