1.4057 Stainless Steel X17CrNi16-2 Material Equivalent
What is1.4057 stainless steel material ?
1.4057 stainless steel, also known as AISI 431, is a high-strength martensitic stainless steel with good corrosion resistance and excellent mechanical properties, commonly used for shafts, valves, and fasteners in marine and engineering applications.
What is 1.4057 material equivalent to ASTM?
| DIN EN 1.4057 Steel X17CrNi16-2 Material Equivalent | |||||||||
| European Union | US | ISO | China | Japan | |||||
| Standard | Designation (Material Number) | Standard | Grade (UNS) | Standard | Grade (ISO number ) | Standard | Name (Code) | Standard | Grade |
| EN 10088-2; EN 10088-3; EN 10088-1 |
X17CrNi16-2 (1.4057) | AISI; ASTM A240/A240M; ASTM A276/A276M; ASTM A959 |
AISI 431 (UNS S43100) |
ISO 15510 | X17CrNi16-2 (4057-431-00-X) | GB/T 1220; GB/T 3280 |
17Cr16Ni2 (S43120) | JIS G4303; JIS G4304 |
SUS431 |
1.4057 Stainless Steel Chemical Composition
| Chemical Composition, % | ||||||||
| Standard | Designation (Steel Number) | C | Si, ≤ | Mn, ≤ | P, ≤ | S, ≤ | Cr | Ni |
| EN 10088-2; EN 10088-3 |
X17CrNi16-2 (1.4057) | 0,12-0,22 | 1,00 | 1,50 | 0,040 | 0,015 | 15,0-17,0 | 1,50-2,50 |
1.4057 Stainless Steel Physical Properties
| Physical Properties | |
| Density, g/cm3 (lb/in3) | 7,7 (0.278) |
| Magnetic | Yes |
| Specific heat capacity, J/(Kg·K) | 460 at 20 °C (68 °F) |
| Electrical resistivity, μΩ·m | 0.70 at 20 °C (68 °F) |
| Modulus of elasticity (Elastic Modulus) , Gpa (103 ksi) | 215 (31.2) at 20 °C (68 °F) |
| 212 (30.7) at 100 °C (212 °F) | |
| 205 (29.7) at 200 °C (392 °F) | |
| 200 (29) at 300 °C (572 °F) | |
| 190 (27.5) at 400 °C (752 °F) | |
| Thermal conductivity, (W/m·K) | 25 at 20 °C (68 °F) |
| Mean coefficient of thermal expansion, (10-6/K) | 10,0 at 20-100 °C (68-212 °F) |
| 10,5 at 20-200 °C (68-392 °F) | |
| 10,5 at 20-300 °C (68-572 °F) | |
| 10,5 at 20-400 °C (68-752 °F) | |
EN 1.4057 Stainless Steel Mechanical Properties
| Mechanical properties at room temperature of heat-treated 1.4057 stainless steel in conditions 1C, 1E, 1D, 1X, 1G and 2D | ||||||||
| Standard | Steel Grade (Steel Number) | Thickness (t) or diameter (d) in mm | Heat treatment condition | Hardness, HBW | 0,2 % proof strength, Mpa (ksi), ≥ | Tensile strength, Mpa (ksi) | Elongation, %, ≥, (long.) | Impact energy (ISO-V), KV2, ≥ J (long.) |
| EN 10088-3 | X17CrNi16-2 (1.4057) | – | +A | 295 | – | 950 (138), ≤ | – | – |
| ≤ 160 | +QT800 | – | 600 (87) | 800-950 (116-138) | 14 | 25 | ||
| 60 <t ≤ 160 | 12 | 20 | ||||||
| ≤ 160 | +QT900 | – | 700 (101) | 900-1050 (130-152) | 12 | 16 | ||
| 60 < t≤ 160 | 10 | 15 | ||||||
| Mechanical properties for bright bars at room temperature of heat-treated 1.4057 stainless steel in conditions 2H, 2B, 2G or 2P | |||||||||
| Standard | Steel Grade (Steel Number) | Thickness (t) or diameter (d) in mm (in.) | Annealed | Quenched + tempered | |||||
| Tensile strength, Mpa (ksi), ≤ | Hardness, HB, ≤ | Heat treatment condition | 0,2 % yield strength, Mpa (ksi), ≥ | Tensile strength, Mpa (ksi) | Elongation in 5mm min, %, ≥, (long.) | Impact energy (ISO-V), KV2, ≥ J (long.) | |||
| EN 10088-3 | X17CrNi16-2 (1.4057) | ≤ 10 (only for rounds) | 1050 (152) | 330 | +QT800 | 750 (109) | 850-1100 (123-160) | 7 | – |
| 10 <t ≤ 16 | 1050 (152) | 330 | 700 (101) | 850-1100 (123-160) | 7 | – | |||
| 16 < t≤ 40 | 1000 (145) | 310 | 650 (94) | 800-1050 (116-152) | 9 | 25 | |||
| 40 <t ≤63 | 950 (138) | 295 | 650 (94) | 800-1000 (116-145) | 12 | 25 | |||
| 63< t ≤ 160 | 950 (138) | 295 | 650 (94) | 800-950 (116-138) | 12 | 16 | |||
EN 1.4057 Stainless Steel Heat Treatment
| Guidelines on the temperatures for hot forming and heat treatment | |||||||||
| Standard | Steel Grade (Steel Number) | Hot forming | Heat treatment symbol | Annealing | Quenching | Tempering Temperature, °C (°F) | |||
| Temperature, °C (°F) | Type of cooling | Temperature, °C (°F), ① | Type of cooling | Temperature, °C (°F), ① | Type of cooling | ||||
| EN 10088-3 | X17CrNi16-2 (1.4057) | 1100 to 800 (2010 to 1470) | Slow cooling | +A ② | 680 to 800 (1255-1470) | furnace, air | – | – | – |
| +QT800 | – | – | 950 to 1050 (1745-1925) | oil, air | 750 to 800+ (1380-1472) 650 to 700 |
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| +QT900 | – | – | 600 to 650 (1110-1200) | ||||||
| Notes: +A: Annealed +QT: Quenched and Tempered ①: If the heat treatment is performed in a continuous furnace, it is generally preferred that the upper limit of the specified range or even exceed the specified range. ②: Double annealing might be advisable. |
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1.4057 Stainless Steel Supplier - GNEE
Gnee Stainless Steel is a reliable supplier of Alloy 431 stainless steel, offering a wide range of products including:
431 Stainless Steel Seamless Pipe:
Size range: 4 – 219 mm (OD); Thickness: 0.5 – 20 mm
431 Stainless Steel Welded Pipe:
Size range: 5.0 – 1219.2 mm (OD); Thickness: 0.5 – 20 mm
431 Stainless Steel Plate and Sheet:
Thickness: 0.1 – 100 mm; Width: 10 – 2500 mm
431 Stainless Steel Strip
431 Stainless Steel Round Bar:
Diameter: 3 – 800 mm
431 Stainless Steel Flat Bar:
Thickness: 2 – 100 mm; Width: 10 – 500 mm
431 Stainless Steel Hex Bar:
Size: 2 – 100 mm (across flats)
431 Stainless Steel Wire and Extruded Profiles
We work closely with steel mills to supply specialty steels and other special steel grades that meet international standards such as ASTM, ASME, SAE, AMS, ISO, DIN, EN and BS.
📩 For questions or quotes, please feel free to contact us at info@gneestainless.com. We look forward to meeting your stainless steel needs.
