01
ASTM A240 / A240M
Chromium and chromium-nickel stainless steel plate, sheet, strip
Standard specification for chromium and chromium-nickel stainless steel plate, sheet and strip for pressure vessels and general applications.
Stainless Steel — Industrial Product
Stainless Steel 304 Coil
Austenitic 304 stainless steel coil supplied to ASTM A240 / EN 10088-2 for food, kitchen, chemical and architectural applications.
Indicative priceUSD 1,800 - 2,400 / MT
Lead time10 - 20 working days
01
Overview
Stainless Steel 304 Coil combines austenitic stainless steel with 18–20% chromium and 8–10% nickel for reliable general corrosion resistance and consistent dimensional control. The balanced chemistry delivers excellent formability, weldability and surface finish, making the coil suited to food and beverage equipment, kitchen fabrication, chemical processing tanks, pharmaceutical hardware and architectural panels. Supplied to ASTM A240 / EN 10088-2 with mill test certification per EN 10204 3.1, it is a globally recognised standard grade for industrial and architectural procurement.
Key Characteristics
- 01 Corrosion Resistance Provides improved resistance to corrosive industrial environments.
- 02 Good Formability Supports bending, forming and other fabrication processes with suitable processing conditions.
- 03 Good Weldability Supports welding using suitable procedures and compatible filler materials.
- 04 High Temperature Capability Suitable for elevated-temperature service within the applicable material limits.
- 05 Oxidation Resistance Provides resistance to oxidation and scaling at elevated temperatures.
- 06 Standard Compliance Manufactured and supplied in accordance with the specified material and product standards.
Typical Applications
- Food & Beverage Hygienic process piping and equipment for food, beverage, brewing and dairy production.
- Kitchen & Catering Equipment Worktops, sinks and food-service equipment where cleanliness and environmental durability are required.
- Chemical Processing Process piping, transfer systems and equipment for corrosive and high-purity media.
- Pharmaceutical Hygienic process systems, vessels and manufacturing equipment for pharmaceutical production.
- Appliance Manufacturing Enclosures, panels and structural components for household and commercial appliances.
02
Specifications
Numbers in this section correspond to the applicable product standard, formatted for direct use in enquiry and approval documents.
Product specification
- Material
- Austenitic stainless steel
- Grade
- 304 / 1.4301 / SUS304
- UNS designation
- S30400
- Product form
- Coil / strip
- Manufacturing method
- Hot rolled / cold rolled
- Surface / condition
- Mill finish; pickled / polished on request
- Cross-section
- Coiled strip, constant thickness and width
Supply specifications
- Thickness
- 0.3 - 6.0 mm
- Width
- 600 - 1,830 mm
- Coil weight
- 3 - 25 MT per coil
- Inner diameter
- 508 mm / 610 mm
- Surface finish
- Mill finish; brushed/polished on request
- Edge condition
- Mill edge; slit edge on request
- Marking
- Standard mill marking; customer marking on request
Final supply is confirmed against the project drawing, purchase agreement and the mill test certificate.
Chemical composition
ElementRequirement
C <= 0.08 %
Si <= 0.75 %
Mn <= 2.00 %
P <= 0.045 %
S <= 0.030 %
Cr 18.0 - 20.0 %
Ni 8.0 - 10.5 %
N <= 0.10 %
Fe Balance
Reference: ASTM A240 304.
Mechanical properties
PropertyRequirement
Tensile strength >= 515 MPa
Yield strength (0.2% offset) >= 205 MPa
Elongation in 50 mm >= 40 %
Hardness <= 201 HB / <= 92 HRB
Reference: ASTM A240 304 at room temperature.
Physical properties
PropertyTypical Value
Density 8.0 g/cm³
Elastic modulus 193 GPa
Thermal conductivity 16.3 W/m·K at 100°C
Electrical resistivity 0.72 μΩ·m
Specific heat 500 J/kg·K
Melting range 1,400 - 1,450 °C
Thermal expansion 17.3 x 10⁻⁶ /°C
Reference: Typical material values, 304.
Reference framework
Standards & documentation
The applicable product, dimensional and inspection standards should be confirmed together in the purchase specification.
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ASME SA240
ASME pressure vessel reference
ASME counterpart of ASTM A240 for pressure vessel and high-temperature applications.
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EN 10088-2
Stainless steel flat products
European reference for stainless steel flat products for general purposes.
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JIS G4304
Hot-rolled stainless steel plate, sheet and strip
Japanese reference for hot-rolled stainless steel plate, sheet and strip.
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JIS G4305
Cold-rolled stainless steel plate, sheet and strip
Japanese reference for cold-rolled stainless steel plate, sheet and strip.
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EN 10204
Inspection documents
Defines inspection document types such as 3.1 and 3.2 for metallic product delivery.
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Capability
From custom dimensions and precision sizing to heat treatment, surface finishing and product-specific processing, Wayland coordinates supply solutions tailored to your requirements.
Cutting
Cut-to-length and custom cutting according to order requirements.
Slitting & Edge Processing
Slitting, edge trimming and related processing according to required width and edge condition.
Custom Dimensions
Non-standard dimensions, tolerances and dimensional combinations subject to product and mill capability.
Precision Sizing
Precision sizing and dimensional control for tighter tolerance requirements.
Cold Working
Cold drawing, cold sizing and other cold-working processes where required.
Surface Finishing
Surface treatment and finishing according to product, specification and application requirements.
Surface Coating & Plating
Coating, plating and other surface protection treatments according to product and application requirements.
Forming
Bending, forming and other shape modification according to drawings or order requirements.
Customization
Custom dimensions, lengths, surface conditions, end preparations and inspection requirements can be supplied according to project specifications. Final capability is confirmed per enquiry based on grade, size range and applicable standard.
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Quality
Inspection and documentation procedures are coordinated to meet the requirements of the applicable product standard and the project specification.
- Dimensional inspection Geometry, dimensions and tolerances against the applicable standard
- Visual and surface inspection Surface condition, marking and overall appearance
Documents
- Inspection Report
- Chemical analysis Per heat, against the applicable standard
- Mechanical testing Tensile, yield, elongation and hardness
- Non-destructive testing UT, eddy-current, hydrostatic or other NDT as applicable
- Positive material identification PMI for alloy verification when required
Documents
- Mill Test Certificate (MTC)
- Heat number traceability Heat number carried through MTC and product marking
- Third-party inspection coordination SGS / BV / TÜV on request
Documents
- Third-Party Inspection Report
- EN 10204 documentation 3.1 MTC standard; 3.2 on request
Documents
- EN 10204 3.1 Mill Test Certificate
- EN 10204 3.2 Inspection Certificate
- Certificate of Origin
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Selection
A well-prepared specification is the most efficient defence against clarification cycles.
- 01 Select material & grade
Choose the material grade according to service conditions, performance requirements and applicable standards.
- 02 Define size & supply condition
Specify the required dimensions, surface condition, heat-treatment condition and delivery requirements.
- 03 Confirm standard & requirements
State the applicable product standard, dimensional standard and governing project specification.
- 04 Define inspection & documentation
Confirm inspection, testing, certification and documentation requirements before order placement.
Example procurement specification
A complete specification suitable for enquiry, covering product, technical requirements, certification and delivery terms.
- Product
- Stainless Steel 304 Coil
- Grade
- 304
- Standard
- ASTM A240
- Dimensions
- Thickness 1.50 mm × Width 1219 mm × Coil ID 508 mm (2B)
- Condition
- 2B Finish; Skin Passed; Oiled
- Certification
- EN 10204 3.1 Mill Test Certificate
- Quantity
- 20 Metric Tons
- Packaging
- Seaworthy Export Packing
- Incoterm
- CIF Hamburg
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Logistics
From mill dispatch to destination port, each stage is coordinated with the nominated forwarder and documented against the purchase specification.
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Packaging
Export-suitable packaging with surface and edge protection.
Bundled, wrapped or crated according to product form and transport mode. Outer surface protected with weather-resistant material; ends and edges shielded against transit damage.
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Loading
FCL container for standard sizes; break bulk for oversized cargo.
Container loading via nominated forwarder. LCL and dimensions outside container allowance coordinated against the mill dispatch schedule.
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Documentation
Commercial invoice, packing list and certificate of origin.
Mill documentation travels with the shipment. EN 10204 3.1 / 3.2 certificates and third-party inspection reports provided as per purchase specification.
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Shipment
Sea freight as standard; alternative routes on request.
FCL / LCL container shipment or break bulk for oversized dimensions. Logistics coordinated through the nominated forwarder.
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Delivery
FOB · CFR · CIF · FCA · EXW arrangements available.
Incoterm 2020. Port of loading: Shanghai / Ningbo / Shenzhen. Final destination and terms confirmed per enquiry.
07
FAQ
Most enquiries reduce to a small set of recurring technical questions.
01 What is 304 stainless steel?
304 (1.4301 / SUS304) is the most widely used austenitic stainless steel, containing approximately 18% chromium and 8% nickel. It offers good corrosion resistance, formability and weldability.
02 What is the maximum service temperature of 304 coil?
304 is suitable for intermittent service up to 870 °C and continuous service up to 925 °C. For sustained high-temperature strength, 304H or 321 is preferred.
03 Is 304 coil magnetic?
304 is austenitic and essentially non-magnetic in the annealed condition. Cold working may induce slight magnetism.
04 What is the difference between 304 and 304L?
304L has lower carbon content (≤ 0.03%) to prevent sensitization during welding. 304L is preferred for welded assemblies that cannot be post-weld annealed.
05 What surface finishes are available for 304 coil?
2B (standard matte), BA (bright annealed), No.4 (brushed), HL (hairline) and No.8 (mirror) finishes can be supplied.