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17-4 Stainless Steel Forgings

As a weldable alloy with high strength, 17-4 stainless steel provides the hardness and machinability needed for applications including mechanical components, biomedical tools, and structural components for a variety of industries. Great Lakes Forge provides a full range of custom forging capabilities for 17-4 PH stainless steel. We can provide custom forgings up to 4,000 lbs., from 2.5" to 24" in diameter/thickness, and up to 12' in length. With the industry's fastest turnaround times, our forging services are ideal for high or low volume production, as well as prototyping.

With over 60 years of custom forging experience, let Great Lakes Forge supply the alloy 17-4 stainless steel forgings for your next project. Discuss your project with one of our forging experts today.

Stainless Steel Alloy 17-4 PH

We offer numerous milling and rough turning capabilities to deliver 17-4 stainless steel forgings that are as close as possible to the desired size and shape, at a reasonable cost. Our in-house machine shop, quality-controlled heat-treating processes, and various testing capabilities help us ensure the quality, consistency, and dimensional accuracy of our custom 17-4 PH forgings.

To meet the needs of your unique project, we can create a variety of custom forged shapes, including blocks, rectangles, flats, plates, rounds, discs, sleeves, flat, square and round bars, hubs, spindles, stepshafts, and sheets, as well as other custom geometries.

Forged 17-4 PH Stainless Steel Shapes

In addition to 17-4 PH stainless steel, we also have the capabilities to forge over 200 different materials. If your project requires a specific type or grade of steel please don't hesitate to contact us. The material you need may be in our inventory, and if it is not, close relationships with our material providers enable us to procure the material you need quickly and cost-effectively.

Forged 17-4 Stainless Steel Applications and Industries

Our 17-4 steel forgings serve a variety of industries which include, but are not limited to:

  • Aerospace Components
  • Petrochemical Industries
  • Paper Industries
  • Food PRocessing
  • Metalworking
  • Waterjet Cutting Equipment

17-4 Stainless Steel Properties

17-4 PH stainless steel is a martensitic precipitation age-hardening material with any beneficial characteristics, including:

  • High strength
  • High hardness
  • High fatigue strength
  • Good galling and stress corrosion resistance
  • Exceptional oxidation resistance at temperatures up to 1,100°F (593°C)
  • Excellent corrosion resistance (comparable to chromium nickel grades)

Alloy 17-4 PH Stainless Steel Composition

Element % Content
Carbon 0.07 (max.)
Chromium 14.00 to 15.50
Columbium + Tantalum 0.15 to 0.45
Copper 2.50 to 4.50
Manganese 1.00 (max.)
Nickel 3.50 to 5.50
Phosphorous 0.040 (max.)
Silicon 1.00 (max.)
Sulfur 0.015 (max.)
Iron balance

Stainless Steel Grade 17-4 PH Hardness

Tempered 17-4 stainless steel can reach Brinell scale hardness of up to 388, and Rockwell hardness of up to C40.

Alloy 17-4 Stainless Steel Heat Treatment

17-4 PH stainless steel is often hardened by heating solution-treated material to temperatures from 900°F to 1,150°F (482°C to 621°C) for one to four hours. The material must then be air cooled to below 90°F (32°C) to allow for complete transformation to martensite.

17-4 Stainless Steel Machinability

17-4 PH stainless steel is readily machined in both solution-treated (condition A) and in the precipitation hardened condition. For annealed 17-4 stainless steel, surface cutting speed averages 80 ft/min, similar to 13-8 stainless steel.

Your Trusted 17-4 Stainless Steel Forging Expert

Start your 17-4 Steel forging project today with Great Lakes Forge. We have the ability and capacity to exceed your 17-4 PH stainless steel forging needs.

Request a quote today on the custom 17-4 stainless steel forgings you need. Or, contact Great Lakes Forge for more information.