Perform Indicator for Steel Grade 42CrMo, Chemical and Mechanical Properties and performance
[ Time：2019-02-18 Click：2401 ]
Alloy Steel Chinese GB/T 3077 Standard Grade 42CrMo
Equivalent Grade:
EN Steel Number: 1.7223 1.7225 1.7227 1.3563
EN Steel Name: 42CrMo4
SAE Grade: 4140/4142
DIN: 41CrMo4 42CrMo4 42CrMoS4 43CrMo4
BS 970 : 708M40 708A42 709M40 En19 En19C
UNI: 41CrMo4 38CrMo4(KB) G40 CrMo4 42CrMo4
JIS: SCM 440 SCM 440H SNB 7 SCM 4M SCM 4
42CrMo steel is a ultra high strength steel which has high toughness, hardenability and bo abvious temper brittleness, low deformation rate after being quenched. Heat-treatment or QT(quenching and tempering) will bring high fragile resistance properties and impact resistance properties.
This photo is our ready stock after heat-treaing process. These products will be applied for ground foundation anchor bolt which need high tensile strength and high pre-stress performance.
Chemical Properties
| Steel Grade | C | Si | Mn | P | S | Cr | Mo |
| 42CrMo | 0.38 ~ 0.45 | 0.17 ~ 0.37 | 0.50 ~ 0.80 | ≤ 0.030 | ≤ 0.030 | 0.90 ~ 1.20 | 0.15 ~ 0.25 |
Mechanical Properties:
-
- Yield strength: ≥ 930 MPa
- Tensile strength: ≥ 1080 MPa
- Elongation: ≥12%
- Rate of reduction in area: ≥45%
- Impact absorbing energy: ≥ 63 J
- Material Brinell hardness: ≤229 (Annealed or high temperature tempered steel rod)
- Sample blank size: 25mm
What is 42CrMoA?
42CrMo+A represent high level top quality steel. Phosphorus and sulphur composition is much lower than 42CrMo, which means more pure with less impurities.
Our factory - Anyang Longteng Heat Treatment Material Co.,Ltd provide customer 42CrMoA-LT, which means much higher performance than GB/T 3077 standard. In this way, after heat-treatment, product properties will be better.
Contact me to get Mill Test Certificate infor@aylttg.com Ms. Cora Tsao
