17-7 Stainless Steel Sheets & Strips

Please note that we do not sell 17-7 PH stainless steel or any other materials in raw form. Stainless steel is a material option for custom springs, wire forms, etc., manufactured by Peninsula Spring.

Due to its precipitation hardened quality 17-7 PH stainless steel is a highly formable stainless steel alloy that provides minimum distortion upon heat treatment, improved strength and hardness over other steel alloys, excellent fatigue properties, good corrosion resistance, and good formability. In high-heat treated conditions, 17-7 stainless steel sheet possesses excellent mechanical properties up to 800° F. Common uses of 17-7 stainless steel include aerospace parts, chemical processing equipment, springs and washers, heat exchangers, power boilers, and high-temperature applications.

 17-7 PH Stainless Steel

Precipitation Hardened Stainless Steels

Precipitation hardening is also known as age hardening. Unlike ordinary tempering, PH alloys must be kept at an elevated temperature for an extended period to allow precipitation to take place. Using this time delayed technique, or aging, increases the yield strength of the material.

Precipitation hardening stainless steels are a group of iron-chromium-nickel alloys. They can gain high strength through heat treatment, (like martensitic grades) and they also have good corrosion resistance (like austenitic grades).

17-7 Stainless Steel Chemical & Physical Properties

The physical and chemical properties of 17-7 stainless steel sheet are as follows:

  • Cr: 16.0 - 18.0%
  • Ni: 6.5 - 7.5%
  • Al: 0.75 - 1.5%
  • Minimum tensile strength: psi x 103 240
  • Modulus of elasticity: psi x 106 29.5
  • Maximum operating temperature: 650°F (343°C)
  • Rockwell hardness: C38-57

17-7 Stainless Steel Applications

17-7 stainless steel sheet provides valuable property combinations that are particularly well suited for aerospace applications and other applications that require high strength and good corrosion resistance. It is an ideal choice for custom flat springs and custom wire forms used in temperatures up to 650°F (343°C). Other applications include:

  • Aerospace
  • Chemical Processing Equipment
  • Heat Exchangers
  • Oil & Petroleum Refining Equipment
  • Food Processing Equipment
  • General Metalworking

17-7 Stainless Steel Sheet for Freshwater Applications

High strength 17-7 PH is suitable for use in fresh water, industrial, and marine atmospheres, as well as mild chemical and oxidizing environments. 17-7 PH should not be used in salt water or reducing environments due to the excessive corrosion risks associated with salt water.

17-7 Stainless Steel Common Trade Names

17-7 PH stainless steel is a precipitation-hardened metal that provides high strength and hardness, excellent fatigue properties, good corrosion resistance, good formability, and minimum distortion upon heat treatment. 17-7 stainless steel sheet is known by numerous names, some of the more common descriptions, include:

  • 17-7 stainless
  • UNS S17700
  • ASTM A693
  • ASTM A613
  • AMS 5529
  • AISI 631

17-7 Stainless Steel Features & Benefits 

Our 17-7 stainless steel sheet and strips are extremely versatile and have several qualities that make it useful for a wide range of applications. Some of the more prevalent features of 17-7 stainless steel, include:

  • Provides valuable property combinations
  • Good corrosion resistance
  • High strength and hardness
  • Excellent fatigue properties

Contact Peninsula Spring Today

Contact us for more information on our 17-7 stainless steel sheet and strip materials for your project needs, or request a quote today.

Please note that we do not sell 17-7 stainless steel or any other materials in raw form. 17-7 stainless steel sheet and strip are material options for custom springs, etc., manufactured by Peninsula Spring.