Amardeep Steel Centre is your trusted source for top-quality 3CR12 Stainless Steel.
Grade 3CR12 stainless steel is an economically viable chromium-containing stainless steel variant,
crafted through the modification of grade 409 steel properties. This alloy demonstrates excellent
resistance to mild corrosion and wet abrasion. Its inception can be credited to Columbus Stainless,
the original source of the registered trademark "3CR12." Equivalent designations for this grade
encompass UNS S40977/S41003 and 1.4003.
Grade 3CR12 shares equivalencies with ASME SA240 grades, ASTM A240/A240M grades, and EN 10088.2
specifications. Notably, grade 1.4003 is also incorporated within EN 10028.7, categorizing it as a
stainless steel suited for pressure-related applications.
Grade: 3CR12 Stainless Steel
UNS No: S41003
Types: Tube, Pipe, Plate, Sheet and coil.
Euronorm: 1.4003 X2CrNi12, S41003, S40977, ASTM A240/A240M and EN 10088.2 1.4003.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1.4003 | min. | - | - | - | - | - | 10.50 | - | 0.30 | - |
| S40977 | max. | 0.030 | 1.50 | 1.00 | 0.040 | 0.015 | 12.50 | - | 1.00 | 0.030 |
| S41003 | min. max. |
- 0.03 |
- 1.50 |
- 1.00 |
- 0.040 |
- 0.030 |
10.5 12.5 |
- - |
- 1.50 |
- 0.030 |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof Stress (MPa) min | Elongation (% in 50mm) min | Hardness | |
|---|---|---|---|---|---|
| Rockwell (HR) max | Brinell (HB) max | ||||
| 1.4003 | 450 650 |
280 (long.) 320 (trans.) |
20 | - | - |
| S40977 | 455 | 280 | 18 | HR B88 | 180 |
| S41003 | 455 | 275 | 18 | HR C20 | 223 |
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (µm/m/°C) | Thermal Conductivity (W/m.K) | Specific
Heat 0-100°C (J/kg.K) |
Electrical Resistivity (nÙ.m) | |||
|---|---|---|---|---|---|---|---|---|---|
| 0-100°C | 0-300°C | 0-700°C | at 100°C | at 500°C | |||||
| 3CR12 | 7740 | 200 | 10.8 | 11.3 | 12.5 | 30.5 | 31.5 | 480 | 570 |
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