24 July 2021 Structural Steel Bar
14NiCr14 Structural Steel Bar
14NiCr14 is a widely used high-grade carburizing structural steel, which has high strength, ductility and hardenability as compared with 15Cr and 20Cr steels. Quenching and tempering at low temperature or high temperature tempering, have good mechanical properties, low temperature impact toughness, notch sensitivity, machinability and weldability is good, but the temper brittleness, white point of high sensitivity After carburizing are required for secondary quenching, special circumstances also need cold treatment.
Chemical Composition:
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) |
|---|---|---|---|---|---|---|
| 0.14～0.20 | ≤0.40 | 0.40 ~ 0.70 | ≤0.030 | ≤0.030 | 0.60～1.00 | 3.00 ~ 3.50 |
Mechanical Propoerties:
| Yield Strength Rp0.2(MPa) | Tensile Strength Rm(MPa) | Elongation δ5 (%): | Reduction of area ψ (%): | Impact energy Akv (J): | Impact toughness value αkv (J/cm2) | Hardness |
|---|---|---|---|---|---|---|
| ≥ 685(70) | ≥ 930(95) | ≥ 11 | ≥ 50 | ≥ 71 | ≥ 88(9) | ≥ 48 HRC |
Equivalent Steel Grade :
| ASTM A29 | JIS G4105 | GB | DIN | EN | Mat.No |
|---|---|---|---|---|---|
| 3415 | SNC815 | 20CrNi3 | 14NiCr14 | 15CrNi13 | DIN 1.5752 |
14NiCr14 Chemical Composition and Tensile test report:
14NiCr14 Depth of carburized case measurement Hardness test after Carburized:
14NiCr14 original factory MTC:
14NiCr14 Chemical Composition and Tensile Strength Test Report Original PDF File
14NiCr14 Hardness test Depth of carburized case measurement Original PDF File