347 Stainless Steel Rectangular Pipe 10x20mm to 50x100mm with 0.6-6.0mm Wall Thickness for High Temperature Applications
347 stainless steel rectangular pipe offers exceptional high-temperature durability, corrosion resistance, and processing versatility for demanding industrial applications. This stabilized austenitic stainless steel maintains structural integrity in extreme environments while providing excellent mechanical properties.
- High Temperature Performance: Maintains strength and durability without embrittlement or fatigue in temperatures up to 800°C
- Superior Corrosion Resistance: Excellent stability in corrosive environments including chloride ions and sulfide ions
- Excellent Processability: Can be formed into various shapes through forging, quenching, annealing, and cold working
- Stabilized Composition: Niobium stabilization prevents sensitization and intergranular corrosion
| Parameter | Specification |
|---|---|
| Outer Diameter (Round) | 4mm - 200mm |
| Square Tube | 10×10mm - 100×100mm |
| Rectangular Tube | 10×20mm - 50×100mm |
| Wall Thickness | 0.6mm - 6.0mm |
| Length | 1-6 meters (customizable) |
| Standards | ASTM, AISI, JIS, GB, DIN, EN |
| Surface Treatments | Black, Bright Polished, Rough Turning, Matt Surface, No. 4, BA |
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Silicon (Si) | ≤ 0.75 |
| Manganese (Mn) | ≤ 2.0 |
| Chromium (Cr) | 18.0 - 20.0 |
| Nickel (Ni) | 9.0 - 13.0 |
| Sulfur (S) | ≤ 0.03 |
| Phosphorus (P) | ≤ 0.04 |
| Property | Value |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 201 HB; ≤ 95 HRB |
| Property | Value |
|---|---|
| Density | 7.97 g/cm³ |
| Modulus of Elasticity | 193 GPa |
| Thermal Expansion Coefficient | 16.0 × 10⁻⁶/°C |
| Thermal Conductivity | 16.3 W/m·K |
| Electrical Resistivity | 72 μΩ·cm |
Widely used in chemical processing, petroleum refining, pharmaceutical manufacturing, food processing, textile operations, breweries, water treatment plants, fertilizers, pesticides, construction, and automotive components.
Certified to ISO, SGS, BV standards. Manufactured using hot rolling and cold rolling technologies with edge processing including edging and trimming.
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