24 July 2021 DIN Alloy
X5CrNi18-10 Stainless Steel Bar
X5CrNi18-10 is a typical stainless steel material. All aspects of the performance are more balanced, suitable for a wide range of uses, including food industry, general chemical, daily groceries; Corresponding to the domestic GB grade 0Cr18Ni9. SUS304 is Japanese JIS standard material, is Japan SUS series of austenitic stainless steel. X5CrNi18-10 German standard (DIN17400-96) Equivalent to GB (GB 1220-92) 0Cr18Ni9.
Chemical Composition:
| C, ≤ | Si, ≤ | Mn, ≤ | P, ≤ | S, ≤ | Cr | Ni | N, ≤ |
|---|---|---|---|---|---|---|---|
| 0.07 | 1.00 | 2.00 | 0.045 | 0.015 | 17.5-19.5 | 8.0-10.5 | 0.10 |
| 0.07 | 1.00 | 2.00 | 0.045 | 0.030 | 17.5-19.5 | 8.0-10.5 | 0.10 |
Mechanical Properties:
| Heat ThreatmentCondition | Thickness (mm), ≤ | 0,2 % proof strength (Mpa), (Transverse) | 1 % proof strength (Mpa), (Transverse) | Tensile strength (MPa) | Elongation (%), < 3mm thick | Elongation %, ≥ 4mm thick | Impact energy (J) KV2 > 10mm thick (Longitudinal) | Impact energy (J) KV2 > 10mm thick (Transverse) |
|---|---|---|---|---|---|---|---|---|
| Cold rolled strip | 8 | ≥230 | ≥260 | 540-750 | ≥45 | ≥45 | – | – |
| Hot rolled strip | 13.5 | ≥210 | ≥250 | 520-720 | 100 | 60 | ||
| Hot rolled plate | 75 | ≥210 | ≥250 | 520-720 | 100 | 60 |
Mechanical properties for bright bars (solution annealed)
| Diameter (d) or Thickness (t) in mm | 0.2% proof strength (MPa) | Tensile strength (MPa) | Elongation (long.), (≥ %) | Impact energy (long.), (J) |
|---|---|---|---|---|
| d≤10 | 400 | 600-950 | 25 | – |
| 10<t≤16 | 400 | 600-950 | 25 | – |
| 16<t≤40 | 190 | 600-850 | 30 | 100 |
| 40<t≤63 | 190 | 580-850 | 30 | 100 |
| 63<t≤160 | 190 | 500-700 | 45 | 100 |
| 160<t≤250 | 190 | 500-700 | 35 (tr.) | 60 (tr.) |
Mechanical properties at different temperatures (solution annealed)
| Temperature, °C (°F) | 0,2 % yield strength, MPa, ≥ | 1 % yield strength, MPa, ≥ |
|---|---|---|
| 100 | 157 | 191 |
| 150 | 142 | 172 |
| 200 | 127 | 157 |
| 250 | 118 | 145 |
| 300 | 110 | 135 |
| 350 | 104 | 129 |
| 400 | 98 | 125 |
| 450 | 95 | 122 |
| 500 | 92 | 120 |
| 550 | 90 | 120 |
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
| Density, g/cm3 (lb/in.3) | 7.9 (0.29) |
|---|---|
| Melting point, °C (°F) | 1400-1455 (2550-2650) |
| Specific heat capacity, J/kg·K (Btu/lb ·°F) | 500 (0.12) at 20℃ (68 °F) |
| Electrical resistivity, μΩ·m | 0.73 at 20℃ (68 °F) |
| Magnetic | No |
| Magnetic permeability | 1.02 (Approximate) |
| Elastic modulus / Modulus of elasticity, GPa (103 ksi) | 200 (29) at 20℃ (68 °F) |
| 194 (28) at 100 °C (212 °F) | |
| 186 (27) at 200 °C (392 °F) | |
| 179 (26) at 300 °C (572 °F) | |
| 172 (25) at 400 °C (752 °F) | |
| 165 (24) at 500 °C (932 °F) | |
| Thermal conductivity, W/m·K (Btu/ft · h ·°F) | 15 (8.67) at 20 °C (68 °F) |
| Coefficient of thermal expansion, 10-6/K | 16.0 at 20-100 ℃ (68-212 °F) |
| 16.5 at 20-200 ℃ (68-392 °F) | |
| 17.0 at 20-300 °C (68-572 °F) | |
| 17.5 at 20-400 °C (68-752 °F) | |
| 18.0 at 20-500 °C (68-932 °F) |
Welding
EN 1.4301 stainless steel can be easily welded by various conventional welding methods, but since the material is not resistant to intergranular corrosion after welding, if it is necessary to weld larger parts and cannot perform solution annealing after welding, 1.4307 stainless steel should be selected. The surface state has a relatively large influence on the corrosion resistance of the steel, so that the polished surface generally has superior corrosion resistance than the rough surface.
Corrosion Resistance
DIN EN 1.4301 stainless steel has good atmospheric corrosion resistance up to 300 °C, and good resistance to many (lightly corrosive) organic and inorganic chemicals. It can also be used at very low temperatures, but there are some limitations in marine, coastal and chloride-containing solutions.
Heat Treatment
- Solution annealing: 1000 – 1100 ℃ (cooling: water, air)
- Hot forming: 1200 – 900 ℃ (cooling: air)
Hardening
EN 1.4301 stainless steel cannot be hardened by heat treatment, but can be hardened by cold working.
Applications
Due to its good corrosion resistance, processability and weldability, EN 1.4301 stainless steel is widely used in chemical, tableware, watches, auto parts, medical equipment, architectural decoration, aerospace and electrical appliances.