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 vareity 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 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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