302B (S30215)
Austenitic stainless steel 302B
S30215
UNS S30215Overview and characteristics of 302B:
302B is a type of austenitic stainless steel. It has relatively high strength, hardness and wear resistance due to its high carbon content. The corrosion resistance, plasticity and weldability of 302B are not that good. It is generally used in the components with the requirements of high mechanical properties and general corrosion resistance, such as springs, turbine blades, hydraulic valves, etc. 302B is usually delivered after quenching and tempering.Chemical compositions of 302B (%):
C
Mn
Si
Cr
Ni
P
S
N
≤0.15
≤2.00
2.0~3.0
17.0~19.0
8.0~10.0
≤0.045
≤0.03
≤0.10
Mechanical properties of 302B:
Yield strength σ0.2 (MPa)
≥205
Tensile strength σb (MPa)
≥520
Elongation δ5 (%)
≥40
Reduction of area ψ (%)
≥50
Hardness
≤207HB
Ultrasonic inspection: Our all products are 100% ultrasonic inspected for any inperfection. We can also conduct it based on the customer’s requirement.
Applications of 302B:
In general, 302B is used in the components requiring high mechanical properties and general corrosion resistance, such as springs, turbine blades, hydraulic valves and so on.For further information on selection, application, heat treatment, welding and inventory, please do not hesitate to contact us. Your sincere inquiries about our austenitic standard stainless steel and other stainless steel are highly appreciated. We will serve you with our honesty, integrity and professionality.
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