Alloy 20 stainless steel is a super-austenitic stainless alloy developed for maximum corrosion resistance to sulfuric acid and other aggressive environments not suitable for typical austenitic grades.
Our Alloy 20 steel is a solution for stress corrosion cracking that can occur when stainless steel is introduced to chloride solutions. We supply Alloy 20 steel for a variety of applications and will help in determining the precise amount for your current project. Alloy 20 can be used for a wide variety of applications including control valves, pressure relief valves, and centrifugal pumps. It is composed of carbon, chromium, copper, iron, manganese, molybdenum, nickel, phosphorous, silicon, and sulfur.
Best Stainless provides its customers with a variety of alloy 20 steel stock shapes under the high quality standards of UNS N08020 and ASTM B473.
Nickel-Alloy 20 Steel Mechanical Properties
| Condition | Ultimate Tensile Strength (PSI) | 0.2% Yield Strength (PSI) | Elongation (% in 2in.) | Reduction Of Area (%) | Hardness Brinell | Hardness Rockwell | |
|---|---|---|---|---|---|---|---|
| Annealed | 80,000 | 35,000 | 30 | 50 | * | * | Quote » |
Nickel Alloy 20 Applications
- Control Valves
- Pressure Relief Valves
- Centrifugal Pumps
Nickel Alloy 20 Stock Shapes
Nickel Alloy 20 Composition
- Carbon 0.070 Max
- Chromium 19.0-21.0
- Copper 3.0-4.0
- Iron 29.85-44.0
- Manganese 2.0 Max
- Molybdenum 2.0-3.0
- Nickel 32.0-38.0
- Phosphorus 0.0450 Max
- Silicon 1.00 Max
- Sulfur 0.0350 Max
Industry Standards
- UNS N08020
- ASTM B473
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