ASTM A240 304H 2B Finish Stainless Steel Sheet
Certification: ISO, RoHS, IBR
Surface treatment: 2b, Ba, No.1, No.4, Hl, 8K, etc.
Process: hot rolling, cold rolling
Thickness: 0.1mm-300mm or as required
Width: 3mm-2000mm or as required
Delivery time: 7-15 days
Payment: FOB/CIF/CFR
Transportation packaging: waterproof paper and steel belt packaging.
Specifications: customized
HS code: 721921000
Capacity: 8000 tons/year
SS 304H CR Sheets, 304H Stainless Steel Sheet Suppliers
GNEE is a manufacturer and supplier of SS 304H stainless steel plates, strictly adhering to international and domestic standards such as ASTM, ASME, and EN. We offer both standard and custom dimensions, ensuring low maintenance costs and long product lifespans by conducting rigorous testing starting from the raw material stage.
The SS 304H stainless steel plate we supply is a high-carbon variant of standard 304 stainless steel, with a minimum chromium content of 10.5%. It is suitable for continuous use in temperatures ranging from 427°C to 816°C (800°F to 1500°F), providing enhanced reliability in extreme heat environments compared to standard 304 stainless steel.
SS 304H CR plates are resistant to corrosion from alkaline solutions, chloric acid, pure water, and harsh atmospheric environments, while maintaining inherent magnetism. They also offer excellent processing performance, including ease of cutting, forming, welding, machining, and bending.
Typical applications for ASTM A240 Type 304H stainless steel hot-rolled plates include food processing equipment, chemical containers, heat exchangers, pipeline systems, valves, automotive parts, building facades, and decorative elements.
Specification
| Standard |
ASME SA240, ASTM A240 / A240M |
|---|---|
| Grade |
1.4948, S30409, SUS 304H, X7CrNi18-9 |
| Length |
2000mm-6000mm (78.7''-236.2''), Customized |
| Width |
1000mm-1500mm (39.4''-59''), Customized |
| Thickness |
0.5mm-100mm (0.02''-3.94''), Customized |
| Surface Finish |
2B, 2D, 8K, BA, Brushed, Checkered, Customized, Embossed, Etching, Hair Line, Mirror, No.1, No.4, No.8, Sand Blast |
| Technique |
Annealing, Bending, Cold Rolling, Cutting, Hot Rolling |
Buy ASTM A240 304H 2B Finish Stainless Steel
Sheets
Equivalent Grades Stainless Steel ASTM A240 Grade 304H Plate
| GRADE | UNS NO | WNR |
| Gr 304H | S30409 | 1.4948 |
Chemical Composition of ASTM A240 Gr.304H Stainless Steel Plate
| Grade | C | Mn | P | S | Si | Cr | Ni |
| Gr 304H | 0.10 max | 2.0 max | 0.045 max | 0.03 max | 0.75 max | 18 – 20 | 8 – 10.5 |
Mechanical Properties of Stainless Steel Grade 304H Plate
| Density | Melting Point | Tensile strength, min, (MPa) | Yield strength, min, (MPa) | Elongation, min, (%), L/T |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
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Applications of 304H Stainless Steel Sheet
Petrochemical: Pressure vessels, heat exchangers, and piping systems.
Power Generation: Boiler components and steam exhaust systems.
Industrial Ovens: Kiln liners and high-temperature furnace parts.
Chemical Processing: Storage tanks for hot corrosive liquids.
Why Engineers Choose 304H Over Standard 304 for High-Temp Projects?
Engineers choose 304H over standard 304 stainless steel for high-temperature projects primarily because of its superior creep resistance and higher strength at elevated temperatures, resulting from a deliberately higher carbon content. While 304 is suitable for general applications up to 1200°F (649°C), 304H is designed specifically for sustained performance in high-heat environments, often above 800°F (427°C).
Sample Service
Free Samples: Gnee provides free A4-sized or small sample pieces for customers to compare surface quality (2B side) and perform chemical composition analysis.
Third-Party Certification: An EN 10204 3.1 material certificate is provided with the goods, and on-site sampling and testing by third-party organizations such as SGS, BV, and TUV are supported.
ASTM A240 SS 304 Plates Exporter
Gnee maintains a year-round inventory of 304H stainless steel, with a monthly inventory turnover of several thousand tons. It possesses advanced cold-rolling, leveling, and slitting production lines, capable of processing 2B sheet metal ranging from 0.3mm to 6.0mm in thickness, with an annual processing capacity exceeding 10,000 tons.
Fast Lead Time: For standard sizes (e.g., 1219x2438mm, 1500x3000mm) of 304H 2B sheet, shipment can be completed within 3-7 days.
Customized: For custom orders involving cutting, leveling, or non-standard sizes, lead time is typically controlled within 15-20 days.
Standard Export Packaging
2B Surface Protection: For the smoothness of the 2B surface, single-sided or double-sided imported PE/laser protective film is provided to prevent scratches during transportation and processing.
Inner Layer: Moisture-proof and waterproof paper wrapping.
Outer Layer: Galvanized iron sleeve or reinforced hardwood board reinforcement.
Bottom: Fumigation-free wooden pallet or reinforced iron pallet to ensure no displacement during container transport.
Corner Protectors: Metal corner protectors are provided to prevent damage during lifting.
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