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Credibility ,Yaang Stainless inventory includes Alloy 403 (UNS S40300) in Stainless Steel Pipes re-certification of 410 stainless steel. Other product forms such as Stainless Steel Flanges, Stainless Steel Pipe Fittings, may also be available by re-certifying 410 stainless steel to meet the requirements of 403.
This straight chromium stainless steel offers reasonable corrosion resistance and high mechanical characteristics. The 403 Series offers heat resistance and a scaling temperature of about 1300°F. It is a corrosion and heat resistant 12% Cr martensitic stainless steel. This alloy offers a wide range of mechanical properties that are obtainable by appropriate heat treatments. It is easily hardened by oil, fan or air cooling and may be tempered at temperatures of up to 1350°F (732°C) to improve fracture toughness. Oil or fan cooling is required in thicker sections
ASTM/ASTE: UNS S40300
EURONORM: X7Cr13
Forging or Rolling
Annealing
Hardening
% | Cr | Ni | C | Si | Mn | P | S | Fe |
---|---|---|---|---|---|---|---|---|
403 | min: 11.5 max:13.0 |
min: 0.60 | max: 0.15 | max:0.5 | max:1.0 | max:0.04 | max:0.03 | Balance |
Grade | Tensile Strength ksi (min.) |
Yield Strength 0.2% Offset ksi (min.) |
Elongation - % in 50 mm (min.) |
Hardness (Rockwell B) MAX |
---|---|---|---|---|
403 | 70 | 30 | 25 | 98 |
Denstiy lbm/in3 |
Coefficient of Thermal Expansion (min/in)-°F |
Thermal Conductivity BTU/hr-ft-°F | Specific Heat BTU/lbm -°F | Modules of Elasticity (annealed)2-psi | |
---|---|---|---|---|---|
at 68 °F | at 68 – 212°F | at 68 – 1450°F | at 200°F | at 32 – 212°F | in tension (E) |
0.276 | 5.5 | 6.6 | 9.3 | 14.4 | 29 x 106 |
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Address:Longwan District, Wenzhou, Zhejiang Province, China.
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Yaang Pipe Industry Co., Ltd. is an international supplier of piping solutions for flange, butt welding fittings, socket welding fittings and threaded fittings. Our products are widely used in different industrial fields, including oil and gas, chemical industry, petrochemical industry, power plant, pulp and paper industry, environmental and water conservancy engineering, engineering projects, etc.