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42CrMo4 +QT Hot Rolled Steel Round Bar with Polished Surface in EN DIN Standard
Product Details
| Material | 42CrMo4 +QT Steel | Standard | EN DIN |
|---|---|---|---|
| Diameter | 10 - 320mm | Length | 6m Or Custom |
| Technique | Hot Rolled | Surface Treatment | Polished |
| Yield Strength | ≥900 N/mm2 (d≤16mm) | Tensile Strength | 1100-1300 N/mm2 (d≤16mm) |
| Elongation | ≥10% (d≤16mm) | Impact Strength | ≥35J (16 < D ≤ 250mm) |
| Hardness HRC | ≥53 (after Hardening) | Hardness HBW | ≤255 (treated) |
| Quenching Temperature | 820 To 880 ºC | Tempering Temperature | 540 To 680 ºC |
| Chemical Composition | C:0.38-0.45%, Cr:0.90-1.20%, Mo:0.15-0.30% | ||
| Highlight | 42CrMo4 +QT Steel Round Bar,Hot Rolled Alloy Steel Round Bar,Polished Surface 42CrMo4 Round Bar |
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Product Description
1.7225 Material 42CrMo4 +QT Steel Round Bar
European standard alloy steel round bar in quenched and tempered condition with high strength, toughness, and excellent mechanical properties.
Product Specifications
| Product Name | 1.7225 / 42CrMo4 Alloy Steel Round Bar |
|---|---|
| Diameter | 10 - 320mm |
| Length | 6m or custom cutting as requested |
| Type | Hot Rolled |
| Brand | BAOSTEEL, DELTA, DONGBEI, HUAXI, SHAGANG, etc. |
| MOQ | 1 Ton |
| Loading Port | Shanghai Port |
| Packing | Steel wire rope packing |
| Delivery Time | 5-7 days for stock materials |
| Other Grades | Q195, Q235, 10#, 20#, 35#, 45#, Q215, Q345, 12Cr1Mov, 15CrMo, 304, 316, 20Cr, 40Cr, 20CrMo, 35CrMo, 42CrMo, 40CrNiMo, GCr15, 65Mn, 50Mn, 50Cr, 3Cr2W8V, 20CrMnTi, 5CrMnMo |
| Standard | ASTM, GB, EN, DIN |
| Application | Structure and Industrial |
Standard Stock Sizes - 42CrMo4 Round Bar
Available diameters: 10, 12, 15, 18, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 120, 130, 140, 150, 160, 180, 200, 210, 220, 230, 250, 270, 300mm
Other Alloy Steel Round Bars Available
40CrNiMoA, 4340, 40CrNi2Mo, 34CrNiMo6, 17CrNiMo6, 20CrNiMoA, 8620H, 35CrMo, V40, 20CrMnMo, 20MnCr5, 30CrNiMo8, 18CrNiMo7
42CrMo4 +QT Steel Material Description
42CrMo4 material (1.7225 steel) is a European standard alloy steel, typically delivered in tempered and quenched condition. It features high strength, high toughness, excellent hardenability, resistance to temper brittleness, high fatigue limit, good impact resistance after quenching and tempering, and superior low-temperature impact toughness.
This steel is ideal for manufacturing large and medium-sized plastic molds requiring strength and toughness, transmission gears, rear axles, load-carrying connecting rods, spring clips, and oil deep well drill pipe joints.
42CrMo4+QT indicates the material is in quenched and tempered condition.
Chemical Composition
| Country (Region) | Standard | Steel Name | C | Si ≤ | Mn | P ≤ | S ≤ | Cr | Mo |
|---|---|---|---|---|---|---|---|---|---|
| European Union | EN 10083-3 | 42CrMo4 (1.7225) | 0.38-0.45 | 0.40 | 0.60-0.90 | 0.025 | 0.035 | 0.90-1.20 | 0.15-0.30 |
Mechanical Properties
- Yield Strength: ≥900 N/mm² (d≤16mm, t≤8mm), ≥750 N/mm² (16<d≤40mm, 8<t≤20mm), ≥900 N/mm² (40<d≤100mm, 20<t≤60mm), ≥900 N/mm² (100<d≤160mm, 60<t≤100mm), ≥900 N/mm² (160<d≤250mm, 100<t≤160mm)
- Tensile Strength: 1100-1300 N/mm² (d≤16mm, t≤8mm), 1000-1200 N/mm² (16<d≤40mm, 8<t≤20mm), 900-1100 N/mm² (40<d≤100mm, 20<t≤60mm), 850-950 N/mm² (100<d≤160mm, 60<t≤100mm), 750-900 N/mm² (160<d≤250mm, 100<t≤160mm)
- Elongation: ≥10% (d≤16mm, t≤8mm), ≥11% (16<d≤40mm, 8<t≤20mm), ≥12% (40<d≤100mm, 20<t≤60mm), ≥13% (100<d≤160mm, 60<t≤100mm), ≥14% (160<d≤250mm, 100<t≤160mm)
- Impact Strength: ≥35J (16<d≤250mm, 8<t≤160mm) - longitudinal Charpy-V-notch test
- Hardness HRC: ≥53 (after flame or induction hardening)
- Hardness HBW: ≤255 (treated to improve shearability); ≤241 (soft annealed)
Notes: (d) - diameter of ruling section, (t) - thickness of flat products, 1 MPa = 1 N/mm²
Heat Treatment
- Quenching Temperature: 820 to 880°C (Austenitizing period: at least 30 min; Quenching agent: Oil or water)
- Tempering Temperature: 540 to 680°C (at least 60 min)
- End Quench Test: 850 ± 5°C
Equivalent Materials
| European Union | United States | China | Japan | ISO |
|---|---|---|---|---|
| EN 10083-3: 42CrMo4 (1.7225) | AISI SAE; ASTM A29/A29M: 4140 | GB/T 3077: 42CrMo | JISG 4105: SCM440 | ISO 683-18: 42CrMo4 |
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