25crmo4 material
25CrMo4 Material Properties
Products Description
25crmo4 equivalent material are 1.7218/4130/SCM430/30CrMo.
25CrMo4 steel can obtain excellent strength and toughness after proper heat treatment. The process of heat treatment includes normalizing, quenching and tempering steps to achieve the required mechanical properties. During normalizing, 25crmo4 material is heated to the right temperature and then cooled in the air to increase the strength of the steel. During the quenching process, 25CrMo4 forged steel bar is cooled rapidly to obtain a higher hardness. The tempering process is to reheat the quenched steel to reduce its brittleness.
25CrMo4 Chemical Composition
| Standard | Grade | C | Si | Mn | P | S | Cr | Mo |
| EN10083 | 25CrMo4 | 0.22-0.29 | ≤0.4 | 0.6-0.9 | ≤0.025 | ≤0.035 | 0.9-1.2 | 0.15-0.3 |
| 1.7218 | ||||||||
| ASTM A29 | 4130 | 0.28-0.33 | 0.15-0.35 | 0.4-0.6 | ≤0.035 | ≤0.04 | 0.8-1.1 | 0.15-0.25 |
| JIS G4105 | SCM430 | 0.28-0.33 | 0.15-0.35 | 0.6-0.85 | ≤0.035 | ≤0.04 | 0.9-1.2 | 0.15-0.3 |
| GB 3077 | 30CrMo | 0.26-0.33 | 0.17-0.37 | 0.4-0.7 | ≤0.03 | ≤0.03 | 0.8-1.1 | 0.15-0.25 |
Physical Property
| Density g/cm3 | 7.85 |
| Melting point °C | 1432 |
| Poisson's ratio | 0.27-0.30 |
| Machinability (AISI 1212 as 100% machinability) | 70% |
| Specific Gravity | 7.8 |
| Thermal conductivity W/(m.K) | 46 |
| Modulus of Elasticity Tension | 29 |
25CrMo4 Material Properties
| Tensile Strength Mpa | Yield Strength Mpa | Elongation % | Hardness HBW | Impact Charpy-V, -18ºC,J |
| ≥ 586 | ≥ 414 | ≥ 18 | 174-237 | ≥ 42 |
| ≥ 655 | ≥ 517 | ≥ 17 | 197-235 | ≥ 42 |
Product Picture
Our factory
Steel Making
Ingot Production
Forged Bars
Machinary
25CrMo4 Steel Heat Treatment
The heat treatment of 25CrMo4 steel is crucial for its final performance. By appropriate heat treatment, the hardness and wear resistance of 25CrMo4 material can be significantly improved. Common heat treatment methods include:
- Quenching: Heating steel to a certain temperature and rapidly cooling it to obtain a martensitic structure, thereby improving hardness.
- Tempering: The subsequent tempering treatment can eliminate the internal stress generated by quenching, improve the toughness and plasticity of the steel.
Supply form
Sichuan Huitai Special Metals Co.,Ltd supply 25CrMo4 steel in various forms to meet the needs of different industries. Popular forms of supply are as below:
- Hot rolling (HR): Steel is rolled at high temperatures and has good mechanical properties.
- Annealing (A): After heat treatment to eliminate internal stress and improve plasticity.
- Cold drawing (C): Improving strength and hardness through cold processing.
- Foring:Diamter larger than 180mm, we can use forging process to produce forged bars for you.
Delivery Conditions
- Normalization (N): Optimizing grain structure through heat treatment to improve material toughness.
- Tempering (T): Achieving a specific range of hardness and strength through heat treatment.
- Quenching and tempering (QT): Increasing hardness through quenching, followed by tempering to improve toughness.
25CrMo4 material has been widely used in multiple industries due to its excellent performance:
- Automotive industry: used to manufacture high-strength bolts, nuts, and other fasteners.
- Mechanical manufacturing: used to manufacture gears, shafts, and other mechanical parts that require high strength and wear resistance.
- Construction industry: used to manufacture high-strength structural components and connectors.
- Energy industry: used for manufacturing parts in oil and gas extraction equipment.
Packing & Delivery
Packing & Delivery
-
The inner size of container is below:
-- 20ft GP: 5.8m(length) x 2.13m(width) x 2.18m(high)
-- 40ft GP: 11.8m(length) x 2.13m(width) x 2.18m(high)
-- 40ft HG: 11.8m(length) x 2.13m(width) x 2.72m(high)
Hot Tags: 25crmo4 material, China 25crmo4 material manufacturers, suppliers, factory, 4130 seamless alloy steel tubing, steel alloy pipe, 9310 round bar, alloy steel round bar, en24 flat bar, 4140 steel pipe
Previous
AISI 4130 Round BarYou Might Also Like
Send Inquiry