www.trafilix.com/en_pdf/AISI420.pdf
www.cintool.com/catalog/mold_quality/420.pdf
AISI Type 420 | |
Category | Steel |
Class | Stainless steel |
Type | Martensitic standard |
Common Names | Chromium steel |
Designations | France: AFNOR Z 20 C 13 Germany: DIN 1.4021 Italy: UNI X 2O Cr13 Japan: JIS SUS 420 J1 Sweden: SS 2303 United Kingdom: B.S. 420 S 37 , B.S. CDS-18 United States: AMS 5506 , AMS 5621 , ASTM A276 , ASTM A314 , ASTM A473 , ASTM A580 , FED QQ-S-763 , FED QQ-S-766 , FED QQ-W-423 , MIL SPEC MIL-S-862 , SAE 51420 , SAE J405 (51420) , UNS S42000 |
Composition | |
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Mechanical Properties | |
Properties | Conditions | ||
T (°C) | Treatment | ||
Density (×1000 kg/m3) | 7.8 | 25 | |
Poisson's Ratio | 0.27-0.30 | 25 | |
Elastic Modulus (GPa) | 200 | 25 | |
Tensile Strength (Mpa) | 860 | 25 | annealed, cold finished (wire) more |
Yield Strength (Mpa) | |||
Elongation (%) | |||
Reduction in Area (%) | |||
Hardness (HRC) | 52 | 25 | tempered at 205°C (bar) |
Thermal Properties | |
Properties | Conditions | ||
T (°C) | Treatment | ||
Thermal Expansion (10-6/ÂșC) | 10.3 | 0-100 more | |
Thermal Conductivity (W/m-K) | 24.9 | 100 | |
Specific Heat (J/kg-K) | 460 | 0-100 |
Electric Properties | |
Properties | Conditions | ||
T (°C) | Treatment | ||
Electric Resistivity (10-9W-m) | 550 | 25 |
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Stainless Steel 420 Round Bar Manufacturers