SAE Type 630 stainless steel (more commonly known as 17-4 PH, or simply 17-4; also known as UNS S17400) is a grade of martensitic precipitation hardened stainless steel. It contains approximately 15–17.5% chromium and 3–5% nickel, as well as 3–5% copper. [1] .

17-4 Stainless is a martensitic chromium-nickel-copper stainless steel in the solution treated (annealed) condition. It can be further hardened to various strength levels by a single precipitation hardening heat treatment that minimizes scaling and distortion.

Grade 17-4 stainless steel is the most widely used steel of the precipitation hardening grade steels. It has high toughness, strength, and corrosion resistance. Chemical Composition. The following table shows the chemical composition of grade 17-4 stainless steel.

17-4 stainless has high tensile strength and hardness and excellent corrosion resistance up to high temperatures. It is typically used in gate valves, chemical processing equipment, pump shafts, gears, ball bearings, bushings, and fasteners.

17-4 Stainless is a martensitic chromium-nickel-copper stainless steel in the solution treated (annealed) condition. It can be further hardened to various strength levels by a single precipitation hardening heat treatment that minimizes scaling and distortion.

2024年12月7日 · Imagine a material that combines exceptional strength, remarkable corrosion resistance, and outstanding versatility, making it indispensable across a multitude of industries. Meet 17-4 stainless steel, a powerhouse alloy that has revolutionized sectors ranging from aerospace to food processing.

2024年3月15日 · Explore the properties of 17-4 stainless steel, its unique characteristics, applications, and advantages across industries in this concise guide.

Alro Steel stocks 17-4 stainless steel, a chromium-copper precipitation hardening stainless steel used for applications requiring high-strength and a moderate level of corrosion resistance. It may be hardened by a single low temperature precipitation-hardening heat treatment.

17-4 stainless steel, also known as 17-4 PH, is a precipitation-hardening martensitic stainless steel that contains approximately 17% chromium and 4% nickel. In terms of specifications, AMS 5643 and ASTM A 564 Type 630 are generally acceptable.

Derived from 17% chromium and 4% nickel, 17-4 stainless has high tensile strength and hardness and excellent corrosion resistance up to high temperatures. 17-4 can be heat treated to achieve high levels of hardness and strength, and is also a martensitic metal.