17-4 Stainless Steel - Sheet, Plate, Bar, Forged Bar

UNS S17400, AMS 5643, AMS 5622, AMS 5604

* All Trademarks and/or Trade names are the properties of their respective owners. 


17-4 Stainless Steel Specifications:
AMS 5643, AMS 5622, AMS 5604

Alloy 17-4, Alloy 17-4 PH, 17-4 PH Stainless Steel, UNS S17400


17-4 Stainless Steel Available Forms:
17-4 Alloy Sheet, 17-4 Alloy Plate, 17-4 Alloy Bar, 17-4 Alloy Forged Bar


17-4 Stainless Steel Applications: Stainless Steel Alloy 17-4 is used in industrial applications, especially for the aerospace, nuclear energy, and chemical processing industries. 


17-4 PH Stainless Steel features good corrosion resistance, hardness, toughness and strength. 17-4 PH Stainless Steel is a very widely used precipitation hardened alloy with a toughness especially suited for industrial applications. 


Carbon: 0.07 max
Manganese: 1.00 max
Phosphorus: 0.040 max
Sulfur: 0.030 max
Silicon: 1.00 max
Chromium: 15.00 - 17.50
Nickel: 3.00 - 5.00
Copper: 3.00 - 5.00
Iron: Balance

Physical Properties

Melting Point: 2560 - 2625°F (1404 – 1440°C)
Density: 0.282 lbs/in3 / 7.8 g/cm3
Modulus of Elasticity in Tension: 28.5 X 106 psi / 197 GPa

Mechanical Properties

Condition: Solution Treated (A) Tensile Strength Minimum (psi): 160,000
Yield Strength Minimum 0.2% offset (psi): 145,000
% Elongation in 2” Typical: 5%
Hardness: Rockwell B85

Condition: Hardened + Aged (TH1050) Tensile Strength Typical (psi): 200,000
Yield Strength Typical 2% offset (psi): 185,000
% Elongation in 2": 8%
Hardness: Rockwell C35

Condition: Aged (H1075) Tensile Strength Typical (psi): 175,000
Yield Strength Typical 2% offset (psi): 165,000
% Elongation in 2": 8%
Hardness: Rockwell C37

Condition: Aged (H900) Tensile Strength Typical (psi): 210,000
Yield Strength Typical 2% offset (psi): 200,000
% Elongation in 2": 7%
Hardness: Rockwell C45

Heat Treatment

17-4 is typically supplied in Condition A, and can be heat treated at a variety of temperatures and times to achieve a wide range of properties.

Corrosion Resistance
The corrosion resistance of 17-4 PH is comparable to that of Type 304 stainless Steel in most media and superior to that of the hardenable 400 series stainless steels. The alloy exposed to seacoast atmosphere will gradually develop overall light rusting and pitting in all heat-treated conditions. In common with other stainless steels, 17-4 material is subject to crevice attack if exposed to stagnant seawater for any length of time.

California Metal & Supply is a leading supplier of quality 17-4 Stainless Steel Sheet, 17-4 Stainless Steel Plate, 17-4 Stainless Steel Bar, 17-4 Stainless Steel Forged Bar.

All of our 17-4 PH stainless steel is ordered to specific thickness. We supply 17-4 PH stainless steel and are capable of fulfilling your required lengths and widths. California Metal & Supply Inc. also has a stocking program to support long term contract for your 17-4 PH stainless steel needs.