13-8 Stainless Steel Open-Die Forgings
13-8 stainless steel is a high-strength, corrosion-resistant alloy known for its excellent toughness, good mechanical properties at high temperatures, and suitability for demanding applications. At Great Lakes Forge, we specialize in open-die forging metal parts, including stainless steel 13-8. Using our in-house machine shop, testing capabilities, and quality-controlled heat-treating processes, we provide customers with high-quality stainless steel forgings for a wide range of industrial applications.
We can forge stainless steel parts in sizes up to 12' in length, from 2.5" to 24" in diameter/thickness, and weighing up to 4,000 lbs. With the industry's fastest turnaround times, our stainless steel forging service is ideal for high or low-volume production, as well as prototyping. We also offer numerous milling and rough-turning capabilities to manufacture your stainless steel 13-8 components at competitive costs.
Start Your QuoteProperties & Characteristics of Stainless Steel Grade 13-8
Stainless steel grade 13-8 is a martensitic precipitation age-hardening material with many useful characteristics. The material's closely controlled chemical composition and microstructure give it a higher level of functional mechanical properties under severe environmental conditions than other ferrous metals. Advantages of alloy 13-8 steel include:
- 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)
Custom Forged 13-8 Mo Stainless Steel Shapes
At Great Lakes Forge, our open-die forging capabilities allow us to produce custom 13-8 stainless steel in a wide range of shapes, including blocks, rectangles, flats, rounds, discs, sleeves, hubs, spindles, stepshafts, and sheets. We can also manufacture flat, square, and round bars. For specialized applications, we can forge unique custom geometries to meet your requirements.
Industrial Applications for 13-8 Mo Stainless Steel Forgings
Because stainless steel 13-8 offers high strength, excellent corrosion resistance, and good toughness, it is ideal for environments with aggressive chemicals and harsh conditions. Its ability to maintain its mechanical properties even at elevated temperatures and ease of fabrication make it a versatile choice for various industrial components. Its resistance to stress corrosion cracking further enhances its reliability in demanding industrial settings, making stainless steel 13-8 a dependable and durable material for various critical applications. Our custom 13-8 steel forgings serve a variety of industries, including:
- Aerospace Components
- Nuclear Energy
- Injection Molding Equipment
- Waterjet cutting Equipment
- Petrochemical Industries
Alloy 13-8 Stainless Steel Composition
| Element | % Content |
| Aluminum | 0.90 to 1.35 |
| Carbon | 0.05 (max.) |
| Chromium | 12.25 to 13.25 |
| Manganese | 0.10 (max.) |
| Molybdenum | 2.00 to 2.50 |
| Nickel | 7.50 to 8.50 |
| Nitrogen | 0.01 (max.) |
| Phosphorous | 0.010 (max.) |
| Silicon | 0.10 (max.) |
| Sulfur | 0.008 (max.) |
| Iron | balance |
Stainless Steel Grade 13-8 Mo Hardness
Tempered 13-8 stainless steel can achieve Brinell scale hardness of up to 430, and Rockwell hardness of up to C45.
Alloy 13-8 Stainless Steel Heat Treatment
13-8 Mo steel can be hardened through solution heat treatment at temperatures from 950°F to 1,150°F (510°C to 621°C) for four hours. It must be air-cooled to below 60°F (16°C) for complete martensite transformation.
13-8 Mo Stainless Steel Machinability
Cutting speed of 13-8 stainless steel averages 80 ft/min, similar to 17-4 stainless. Machinability of age-hardened 13-8 stainless steel improves in proportion to increases in hardening temperature.
13-8 Steel Hot Working Capabilities
Stainless steel grade 13-8 can be forged and hot-worked. The alloy should be solution-treated and cooled at room temperature.
Cold Working Alloy 13-8 Capacities
This alloy can be cold-worked. Fabrication is limited by its high initial yield strength.
Great Lakes Forge is Your Source for Custom Open-Die Forged Components
In addition to 13-8 forgings, we produce custom open-die forgings from over 100 materials. If your project requires a specific type or grade of steel, we can supply it. We provide commercial and industrial customers in a wide range of rugged industries with custom-forged parts, including stepshafts, blocks, rounds, and more. With advanced services like CNC machining, milling, and turning, you can count on Great Lakes Forge to supply premium custom forgings with quick, on-time deliveries.
Contact Us for Custom 13-8 Stainless Steel Forgings & More
Want to learn more about how Great Lakes Forge can supply you with custom Stainless Steel 13-8 forgings? Contact us online or request a quote today to get started. For all your stainless steel custom forging needs, choose Great Lakes Forge.
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