Black Finish 431 Stainless Round Stock , Heat Treatment Solid Stainless Steel Rod

431 stainless steel round bar black finish heat treatment hardness qualified UT test

Description:
Cr steel with Ni in 431(16cr-2ni) has high mechanical properties through heat treatment, and is superior to 410 and 430 steel in corrosion resistance.The 431 stainless steel corresponds to Chinese 1Cr17Ni2 and Japanese JIS SUS431, Germany X22CrNi17.

Diameter tolerance: +1.5~+3.0mm

Chemical Composition:

Mechanical properties:

Tensile strength σb (MPa): quenching and tempering, ≥1080

Elongation δ5 (%): quenching and tempering, ≥10

Impact work Akv (J): quenching and tempering, ≥39

Hardness: annealing, ≤ 285HB
Heat treatment specification and metallographic structure: heat treatment specifications:

1) annealing, tempering at 680-700 °C for high temperature tempering;

2) quenching, oil cooling at 950 to 1050 °C;

3) tempering at 275 to 350 °C.

Metallographic organization: The tissue is characterized by martensite type.
Delivery status: generally delivered in heat treatment state, the type of heat treatment is indicated in the contract; if not specified, it is delivered according to the state without heat treatment.

Tolerance of bright polished bar:

Haosteel, with stainless steel as its main business, manufactures premium stainless steel products with high technologies and a high added value and fosters four major product categories, namely stainless steel bars, stainless steel pipes, stainless steel plates, stainless steel wires, now the Carbon steel, Alloy steel, Aluminium and Cooper are also in our service range. Haosteel take the responsibilities of devoting ourselves to providing valuable products and services, all clients can enjoy the one-stop service from Haosteel.

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