17-4PH round bar suppliers
We are the 17-4PH alloy round bar suppliers. It is a precipitated, hardened, martensitic stainless steel composed of copper, niobium/columbium.The properties of 17-4ph are characterized by easy adjustment of the strength level, which can be adjusted by changing the heat treatment process. ·
Application field:
Offshore platforms, helicopter decks, food industry, pulp and paper industry, aerospace (turbine blades), mechanical components, nuclear waste drums.
The 17-4ph 17-4ph alloy is precipitated, hardened, martensitic stainless steel.
The 17-4ph alloy is a precipitated, hardened, martensitic stainless steel composed of copper, niobium/columbium.This grade has high strength and hardness (up to 300º C / 572 & ordm; F) and corrosion resistance.After heat treatment, the mechanical properties of the product are more perfect, and the compressive strength can reach up to 1100-1300 mpa (160-190 ksi). This level cannot be used for higher than 300 ℃ (572 ℉) or very low temperatures, in the atmosphere and dilute acid or its salt has good corrosion resistance, it has the corrosion resistance of 304 and 430.
Chemical composition:
ASTMS17400，ASTM A564 630，UNS630
C:≤0.07 Si:≤1.00 Mn:≤1.00 P:≤0.040 S:≤0.030 Ni:3.00-5.00 Cr:15.0-17.5
Mo:- Cu:3.00-5.00 Nb:0.15-0.45
Physical Properties:
Tensile strength of sigma b (MPa) : 480 ℃ ageing, p. 1310; 550 ℃ ageing, p 1060; 580 ℃ ageing, p 1000; 620 ℃ ageing, p. 930
Conditions to yield strength sigma (MPa) : 0.2 480 ℃ ageing, p. 1180; 550 ℃ ageing, p 1000; 580 ℃ ageing, p 865; 620 ℃ ageing, p. 725
Elongation delta (%) : 480 ℃ ageing, 10 or higher; 550 ℃ ageing, 12 or higher; 580 ℃ ageing, 13 or higher; 620 ℃ ageing, 16 or higher
Reduction of area bits (%) : 480 ℃ ageing, 40 or higher; 550 ℃ ageing, 45 or higher; 580 ℃ ageing, 45 or higher; 620 ℃ ageing, 50 or more
Hardness: solid solution 363HB and 38HRC; 480 ℃ ageing, 375 hb and acuity or 40 HRC; 550 ℃ ageing, p 331 hb and 35 HRC or; 580 ℃ ageing, acuity 302 hb and p 31 HRC; 620 ℃ ageing, p 277 hb and acuity 28 HRC
Density: 7.80 g/cm3
Heat treatment regime:
Solid solution heat treatment specification: 1) 1020 ~ 1060 ℃ cold fast
2) 480 ℃ ageing, after solid solution treatment, 470 ~ 490 ℃ air cooling
3) 550 ℃ ageing, after solid solution treatment, 540 ~ 560 ℃ air cooling
4) 580 ℃ ageing, after solid solution treatment, 570 ~ 590 ℃ air cooling
5) 620 ℃ ageing, after solid solution treatment, 610 ~ 630 ℃ air cooling.
Microstructure: the microstructure is characterized by precipitation hardening.
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Mob: 0086 13817679215
E-mail: 809@jawaysteel.com
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Address: Suite 15G,Yongrong Enterprise Center,No.1111 Liyang Road,HongKou Area,Shanghai 200081,China
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