Stainless steel 1.4104 (material X14CrMoS17)
DIN EN 1.4104 stainless steel (X14CrMoS17) is a type of martensitic stainless steel containing molybdenum. The higher sulfur content makes it more suitable for machining. It has good machining properties, good mechanical properties and good magnetic properties. However, the addition of sulfur reduces its weldability and corrosion resistance.
DIN EN 1.4104 Material properties
The properties and specifications of EN 1.4104 stainless steel are summarized in the following tables, including chemical composition, mechanical properties, hardness, heat treatment, etc.
Chemical composition
Table 1, the chemical composition of X17CrNi16-2 (material 1.4104) is listed in the following table based on casting analysis.
| 1.4104 Chemical Composition of the Material, % | ||||||||
| Standard | Designation (Steel Number) | W | Yes, ≤ | Mn, ≤ | P, ≤ | S, ≤ | Cr | Mo |
| EN 10088-2; EN 10088-3 |
X14CrMoS17 (1.4104) | 0.10-0.17 | 1.00 | 1.50 | 0.040 | 0.15-0.35 | 15.5-17.5 | 0.20-0.60 |
Physical properties
The physical properties of DIN EN 1.4104 stainless steel are listed in the table below, such as density, melting point, specific heat, electrical resistivity, modulus of elasticity (modulus of elasticity), thermal conductivity and coefficient of thermal expansion (CTE).
Grades:
- 10 -6 ·K -1 = 10 -6 /K
- 1Ω mm²/m = 1 μΩ m
- 1 g/cm3 = 1 kg/dm3 = 1000 kg/m3
- 1 GPa = 1kN/mm2
- 1 MPa = 1 N/mm2
| Table 2, Physical Properties | |
| Density, g/cm3 (lb/in3) | 7.7 (0.278) |
| Magnetic | Yes |
| Specific heat capacity, J/(Kg·K) | 460 to 20°C (68°F) |
| Electrical resistivity, μΩ·m | 0.70 to 20°C (68°F) |
| Modulus of elasticity (Elastic Modulus), Gpa (10 3 ksi) | 215 (31.2) at 20°C (68°F) |
| 212 (30.7) at 100°C (212°F) | |
| 205 (29.7) to 200 °C (392 °F) | |
| 200 (29) to 300°C (572°F) | |
| 190 (27.5) to 400 °C (752 °F) | |
| Thermal conductivity, (W/m·K) | 25 to 20°C (68°F) |
| Average coefficient of thermal expansion, (10 -6 /K) | 10.0 to 20-100°C (68-212°F) |
| 10.5 to 20-200°C (68-392°F) | |
| 10.5 to 20-300°C (68-572°F) | |
| 10.5 to 20-400°C (68-752°F) | |
DIN EN 1.4104 Mechanical Properties of Stainless Steel
The mechanical properties of DIN EN 1.4104 stainless steel are given in the data sheet below, including tensile strength, yield strength, elongation, area reduction, Brinell and Rockwell hardness, etc.
| Table 3, Mechanical Properties for Bars at Room Temperature of Steels in the Cold Work Hardened Condition (2H) | |||||
| Standard | Designation (Steel Number) | Tensile strength level | 0.2% proof strength, Mpa (ksi), ≥ | Tensile strength, Mpa (ksi) | Elongation after fracture, %, ≥ |
| EN 10088-2; EN 10088-3 |
X14CrMoS17 (1.4104) | +C550 | 440 | 550 to 750 (80-108) | 15 |
| When consulting and ordering, the maximum diameter of this tensile strength class must be agreed; should not be more than 25 mm. | |||||
| Table 4, Mechanical Properties for Room Temperature Bright Bars of Heat Treated 1.4104 Stainless Steel at 2H, 2B, 2G, or 2P Conditions | ||||||||
| Standard | Steel grade (steel number) | Thickness | ||||||
