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Density: 7.93g/cm³
Diameter: Ø1-500mm
Tolearance: h8-h11
Equivalent designations: 17-7ph, 631, UNS S17700, DIN 1.4568
Surface: black,pickling,bright,polish,rough turn,ground polish

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Product introduction
17-7ph (ASTM 631) is a Semi-austenitic precipitation hardening stainless steel, which is an austenitic unstable stainless steel. 17-7ph steel is solid solution and austenite structure at room temperature. After cold processing, cold treatment or heating to about 750 degrees, the austenite can transform martensite. Aging treatment can precipitate the second phase on the basis of martensite and strengthen the steel.

17-7ph stainless steel bar mechanical properties:
Tensile strength σb (MPa):solution≤1030; 565℃ aging≥1140; 510℃ aging≥1230
Yield strength σ0.2 (MPa):solution≤380; 565℃ aging≥960; 510℃ aging≥1030
Elongation δ5 (%):solution,≥20;565℃ aging≥5; 510℃ aging≥4
Reduction of Area ψ (%):565℃ aging≥25; 510℃ aging≥10
Hardness: solution≤229HB; 565℃ aging≥363HB; 510℃ aging≥388HB

17-7ph stainless steel bar application:
Hardware kitchenware, shipbuilding, petrifaction, mechanics, medicine, food industry, energy etc

Chemical composition:
Grade DIN ASTM Chemical Component %
C Si Mn P S Cr Ni Al
17-7PH 1.4568 631 Max 0.09 Max 1.00 Max 1.00 Max 0.040 Max 0.030 16.0-18.0 6.5-7.5 0.75-1.50
HS Code: 7222400000
Standard: ASTM, JIS, GB, EN, GOST
Length: 1-12m
Tolerance: H8,H9,H10,H11 or as required
Production method cold drawn,cold rolled,hot rolled,forged

Packing and equipments:

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