SUS304H Stainless Steel Plate & Coil: High-Carbon High-Temp Creep-Resistant Plate/Coil

What is SUS304H Stainless Steel Plate & Coil?

SUS304H is the high-carbon derivative of SUS304, tailored for high-temperature service. Its optimized carbon content enhances high-temperature creep strength, making it suitable for high-temperature, high-pressure industrial plate/coil components.

Equivalent Grades (Horizontal)

UNS: S30409 | JIS: SUS304H | GB: 07Cr19Ni10 | EN: X6CrNi18-10 | W.Nr.: 1.4307

Chemical Composition (wt%, Horizontal)

C: 0.04-0.10 | Si: ≤1.00 | Mn: ≤2.00 | P: ≤0.045 | S: ≤0.030 | Cr: 18.00-20.00 | Ni: 8.00-10.50 | N: ≤0.10 | Fe: Balance

Key Properties (20°C, Annealed, Horizontal)

Density: 7.93g/cm³ | Melting Point: 1400-1450°C | Tensile Strength: ≥515N/mm² | Yield Strength: ≥205N/mm² | Elongation: ≥40% | Hardness: ≤201HB

Core Characteristics

• High-carbon optimization: Significantly improves high-temperature creep strength, maintaining structural integrity at 600-870°C • Good high-temperature oxidation resistance: Adapts to continuous high-temperature service in oxidizing atmospheres • Mandatory post-weld annealing: Optimizes grain structure, ensuring consistent high-temperature performance • Specialized for high-temperature components: Suitable for boiler superheater plates, industrial furnace coils and high-temp pressure parts

SUS304H vs SUS304 Stainless Steel Plate & Coil (Horizontal)

Carbon Content: SUS304H (0.04-0.10%) | SUS304 (≤0.08%) | High-Temp Creep: SUS304H (Excellent) | SUS304 (General) | Annealing Requirement: SUS304H (Mandatory) | SUS304 (Optional) | High-Temp Limit: SUS304H (≤870°C) | SUS304 (≤800°C)

 

Stainless Steel Suppliers

If you have project requirements for stainless steel, we welcome your order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, wires, etc. For detailed chemical composition information and free samples, please contact our factory immediately. We offer competitive prices and excellent service.Email: info@gneestainless.com

 

Testing and Documentation: Factory test certificate, EN 10204 3.1, chemical report, mechanical report, destructive testing report, non-destructive testing report, PMI test report, visual inspection report, third-party inspection report, NABL certified laboratory report.
Packaging: Wooden crate packaging, bubble wrap packaging, steel strapping, or packaging according to customer requirements.