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17-4PH precipitation hardening stainless steel

17-4PH precipitation hardening stainless steel

Name :17-4PH precipitation hardening stainless steel, also known as
Standard: AISI, ASTM Type :17-4PH (SUS630) UNS Number: S17400

17-4PH stainless steel properties and applications: 17-4PH material for American brands, is a martensitic precipitation hardening stainless steel, the equivalent of Chinese brands: 0Cr17Ni4Cu4Nb. Add 17-4PH precipitation hardening steel kinds of copper. 17-4PH for the manufacture of shafts, turbine components.

17-4PH steel chemical composition

C

Mn

Si

Cr

Ni

P

S

Cu

Nb+Ta

≤0.07

≤1.00

≤1.00

15.5~17.5

3.0~5.0

≤0.04

≤0.03

3.0~5.0

0.15~0.45

17-4PH precipitation hardening stainless steel mechanical properties:

Tensile strength σb (MPa): 480 ℃ aging, ≥ 1310; 550
Conditions yield strength σ0.2 (MPa): 480 ℃
Elongation δ5 (%): 480 ℃
Reduction of ψ (%): 480 ℃
Hardness: solution, ≤ 363HB and ≤ 38HRC; 480 ℃

17-4PH stainless steel specifications

Heat treatment specifications:
Solute 1020 ~ 1060 ℃ rapid cooling; 2) 480 ℃ aging, after solution treatment, 470 ~ 490 ℃ air-cooled; 3) 550 ℃ aging, after solution treatment, 540 ~ 560 ℃ air-cooled; 4) 580 ℃ aging , after solution treatment, 570 ~ 590 ℃ air-cooled; 5) 620 ℃ aging, after solution treatment, 610 ~ 630 ℃ air-cooled.

Microstructure: Organizing for precipitation hardening.
17-4PH precipitation hardening applications: • offshore platforms, helicopter deck, other platforms • Food industry • Pulp and paper • Aerospace (turbine blades) • • mechanical components of nuclear waste barrel

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Tags: 17-4PH precipitation hardening, 17-4PH stainless steel

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