DIN Alloy Steel 34CrMo4 Equivalent Material
Introduction to 34CrMo4
DIN 34CrMo4, a high-strength alloy steel, is renowned for its toughness and ability to withstand high stress. In DIN EN 10083 the steel number is 1.7220 steel grade. 34CrMo is widely used in various industries due to its impressive mechanical properties. This steel is particularly needed in the automotive and aerospace industries due to its high fatigue strength and abrasion resistance. The typical equivalent steel grades are AISI 4135, SCM435 and GB 35CrMo. You could inquire us for best price / rate for each and we will check the availability for 34CrMo4 or it’s equivalent material for you.
Supply Range and Sizes of 34CrMO4 and Equivalent
- 34CrMo4 Round Bar: Diameter range from 10mm to 300mm.
- Surface: black surface or turned surface
- Heat treatment condition: as rolled, normalized or 34CrMo4 QT steel
- 34CrMo4 round bar in stock: Φ20-220mm, standard length around 6000mm, in stock for immediate shipment.
Specifications and Equivalent Grades
| 34CrMo4 Specification | Equivalent Grades |
|---|---|
| DIN 1.7220 | AISI 4135 |
| EN 10083 | 34CrMoS4 |
| JIS G4105 | SCM435 |
Chemical Composition
The chemical composition of 34CrMo4 and its equivalents is critical to its properties.
| Element | 34CrMo4 (%) | AISI 4135 (%) | SCM435 (%) |
|---|---|---|---|
| C | 0.30-0.37 | 0.33-0.38 | 0.33-0.38 |
| Si | 0.40 max | 0.15-0.35 | 0.15-0.35 |
| Mn | 0.60-0.90 | 0.60-0.90 | 0.60-0.90 |
| P | 0.025 max | 0.035 max | 0.030 max |
| S | 0.035 max | 0.040 max | 0.040 max |
| Cr | 0.90-1.20 | 0.80-1.10 | 0.90-1.20 |
| Mo | 0.15-0.30 | 0.15-0.25 | 0.15-0.30 |
Properties of 34CrMo4 Steel
34CrMo4 / 1.7220 steel has high tensile strength and toughness, even at varying temperatures. 34CrMo4 has good hardenability. DIN 34CrMo4 also has excellent wear resistance and fatigue strength.
Forging of 34CrMo4 Material
Forging of 34CrMo4 steel should be done between 900-1200°C, followed by cooling in still air.
Heat Treatment
- Annealing: Heat to 650-700°C, cool slowly.
- Normalizing: Heat to 870-900°C, cool in air.
- Quenching: 830-870°C, oil or water quench.
- Tempering: 540-680°C.
Applications
34CrMo4 material is widely used in the manufacturing of high-pressure cylinders, automotive parts, and machinery components etc. DIN 34CrMo4 steel’s strength and durability make it perfect for critical structural applications.
FAQs
- What is 34CrMo4 steel used for? 34CrMo4 is primarily used in high-stress applications like automotive and aerospace components.
- What is the heat treatment process for 34CrMo4? It involves annealing, normalizing, quenching, and tempering to achieve desired properties.
- Can 34CrMo4 be welded? Yes, with appropriate pre and post-weld heat treatment. It could be welded.
- What are the equivalent grades of 34CrMo4? AISI 4135, 4137, 34CrMoS4, SCM435 are some equivalents. Due to different cost and price, or availability. Sometimes, 34CrMo4 equivalent material would be a better option for you.
- How does chemical composition affect 34CrMo4’s properties? The specific amounts of chromium and molybdenum in 34CrMo4 enhance its strength, toughness, and hardenability.
For further inquiries about 34CrMo4 steel or it’s price and delivery time, feel free to contact us via email at jeremy@otaisteel.com or WhatsApp +8613610149979. We’re here to assist with all your steel material needs.
