The super austenitic stainless steel used by ASTM B462-2015 Slip On Flange is also a super austenitic stainless steel with excellent resistance to chloride ion pitting and crevice corrosion. As a corrosion-resistant alloy with good cost performance, its comprehensive corrosion resistance has greatly improved compared with 316L. At the same time, compared with other corrosion-resistant nickel based alloys such as C-276, its corrosion-resistant ability is close and its cost advantage is obvious. Because of the significant nitrogen content added to the alloy, the raw materials of ASTM B462-2015 Slip On Flange have higher tensile strength than conventional austenitic stainless steel (such as 304316317, etc.), while maintaining excellent material toughness and impact strength. According to the allowable stress value specified in ASME standard, the stress of ASTM B462-2015 Slip On Flange is 40% higher than 316L and nearly twice as high as copper nickel alloy.
Chemical composition of ASTM B462-2015 Slip On Flange:
C:0.03，Mg:2.0，P:0.04，S:0.03，Si:1.0，Ni:23.5-25.5，Cr：20.0-22.0，Mo:6.0-7.0，N:0.18-0.25，Cu:0.75
Physical properties of ASTM B462-2015 Slip On Flange:
Density: 8.24g/cm3
Melting point: 1370-1398 ℃
Elastic modulus: 290gpa
Thermal conductivity: 90 w / (m •℃)
Hardness (HB): 280
Coefficient of thermal expansion (20-100 ℃): 8.5 × 10-6/℃
ASTM B462-2015 Slip On Flange mechanical properties:
Tensile strength: σ B ≥ 650mpa, yield strength σ B ≥ 295mpa: elongation: δ ≥35%
Heat treatment of UNS N08367 ASTM B462-2015SO FLANGES: heat preservation between 980-1150 ℃ for 1-2 hours, rapid air cooling or water cooling.
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