EN 1.4125 X105CrMo17 Steel Composition, Properties, Equivalent
EN 1.4125 X105CrMo17 Steel
X105CrMo17 material (EN 1.4125 steel) is an European standard high carbon martensitic stainless steel. Due to its high carbon, chromium and molybdenum content, it has high strength, good hardness, corrosion resistance, wear resistance, and high temperature and low temperature dimensional stability.
Datasheet & Specification
The following tables and lists give the 1.4125 datasheet including chemical composition, physical properties and mechanical properties etc.
X105CrMo17 Steel Chemical Composition
The following table shows (1.4125) X105CrMo17 steel chemical composition
| Chemical Composition (%) | |||||||||
| Standard | Steel Grade | C | Si (≤) | Mn (≤) | P (≤) | S (≤) | Cr | Mo | Ni |
| EN 10088-3 | X105CrMo17 (1.4125) | 0.95-1.20 | 1.00 | 1.00 | 0.040 | 0.030 | 16.00-18.00 | 0.40-0.80 | – |
Mechanical Properties of 1.4125 Steel
Material Brinell hardness: ≤285 HBW (Annealed), thickness ≤100.
Physical Properties
Notes:
- 10-6·K-1 = 10-6/K
- 1 Ω·mm²/m = 1 μΩ·m
- 1 g/cm3 = 1 kg/dm3 = 1000 kg/m3
- 1 GPa = 1 kN/mm2
- 1 MPa = 1 N/mm2
| Physical Properties | |
| Density, g/cm3 | 7,7 |
| Magnetic | Yes |
| Electrical resistivity, μΩ·m | 0,8 (20 ℃) |
| Specific heat capacity, J/(kg·K) | 430 (20 ℃) |
| Thermal conductivity, (W/m·K) | 15 (20 ℃) |
| Modulus of elasticity, Gpa | 215 (20 ℃) |
| 212 (100 ℃) | |
| 205 (200 ℃) | |
| 200 (300 ℃) | |
| 190 (400 ℃) | |
| Mean coefficient of thermal expansion, (10-6/K) | 10,4 (20-100 ℃) |
| 10,8 (20-200 ℃) | |
| 11,2 (20-300 ℃) | |
| 11,6 (20-400 ℃) | |
Heat Treatment Specification
- Hot forming temperature: 1100-900℃ (cooling: slow cooling)
- Annealing temperature: 780-840℃ (cooling: furnace, air).
Equivalent Grade
European X105CrMo17, 1.4125 stainless steel equivalent to US ASTM, ISO, Japanese JIS, and Chinese GB standard. (For reference)
| X105CrMo17 (1.4125) steel equivalent | |||||||||
| European | USA | ISO | Japan | China | |||||
| Standard | Name (Steel number) | Standard | Grade | Standard | Grade | Standard | Grade | Standard | Grade |
| EN 10088-2; EN 10088-3; | X105CrMo17 (1.4125) | AISI ASTM A276/A276M | 440C | ISO 683-17 | X108CrMo17 | JIS G4303; JIS G4304; JIS G4305 | SUS 440C | GB/T 1220 | 9Cr18Mo |
