EN 10083-3 34CrMo4 / AISI 4135
Chromium-molybdenum medium-carbon alloy structural steel plates have a good balance of strength and toughness, moderate hardenability, and acceptable weldability.
Classification :
PRODUCT DETAILS
Chromium-molybdenum medium-carbon alloy structural steel plates have a good balance of strength and toughness, moderate hardenability, and acceptable weldability. After quenching and tempering, they have good comprehensive mechanical properties and are a classic material for medium-load mechanical structural components.
Product parameters
| Grade/Standard | Production process | Material standards | Width (mm) | Length (mm) | Thickness (mm) |
| ASTM A588 weather-resistant alloy structural steel plate | Hot rolling / controlled rolling and controlled cooling TMCP; usually delivered in hot rolling or normalizing state; divided into Gr.A, Gr.B, Gr.K grades | ASTM A588/A588M "High Strength Low Alloy Weathering Structural Steel" | 1500 – 3200 (commonly used 1800 / 2000 / 2200 / 2500) | 6000 – 12000 fixed length; length can be customized according to customer requirements | 6.0 – 100.0 (commonly used: 8 – 50 mm) |
| GB/T 11251 Alloy structural steel plate (35CrMo / 42CrMo) | Hot rolling + quenching and tempering (quenching + tempering QT); can be delivered in annealed, normalized or quenched and tempered state; thick plates can be electroslag remelted | GB/T 11251 "Alloy Structural Steel Hot-rolled Thick Steel Plate"; Representative brands: 35CrMo, 42CrMo, 30CrMnSiA, 20CrMnTi, etc. | 1500 – 3000 (commonly used 1800 / 2000 / 2200 / 2500) | 6000 – 12000 Fixed length; can be customized according to customer requirements | 8.0 – 150.0 (commonly used 10 – 100 mm) |
| EN 10083-3 34CrMo4/AISI 4135 | Hot rolling + quenching and tempering (quenching + tempering QT); can be delivered in normalized, annealed or quenched and tempered condition | EN 10083-3 "Quenched and tempered steels for quenching and tempering Part 3: Alloy steels"; material number 1.7220; grade 34CrMo4; corresponding to AISI 4135 | 1500 – 3000 | 6000 – 12000 fixed length | 8.0 – 150.0 |
| EN 10083-3 42CrMo4/AISI 4140/4142 | Hot rolling + quenching and tempering (quenching + tempering QT); can be delivered in normalized, annealed or quenched and tempered state; surface induction hardening can be used for high strength requirements | EN 10083-3; material number 1.7225; grade 42CrMo4; corresponding to AISI 4140 / 4142 | 1500 – 3200 (commonly used 2000 / 2200 / 2500) | 6000 – 12000 fixed length; customizable length | 8.0 – 200.0 (commonly used 10 – 150 mm) |
| EN 10083-3 50CrV4/AISI 6150 | Hot rolling + quenching + medium temperature tempering (spring quenching and tempering); can be delivered in annealed or quenched and tempered condition | EN 10083-3; material number 1.8159; grade 50CrV4 (also known as 51CrV4); corresponding to AISI 6150 | 1200 – 2500 | 6000 – 10000 fixed length | 5.0 – 80.0 (6 – 40 mm is commonly used for springs) |
Material Standards
| Grade/Standard | Surface technology | Chemical composition (Typical range %) | Application scope | Equivalent material |
| ASTM A588 weather-resistant alloy structural steel plate | Hot rolled black leather / shot blasting Sa2.5 / shop primer can be applied; weathering steel usually retains the appearance of the original rust layer | Gr.A Typical: C ≤0.19, Mn 0.80–1.25, Si 0.15–0.40, P 0.04–0.15, S ≤0.05, Cu 0.25–0.40, Cr 0.40–0.65, Ni 0.25–0.50 | Bridge structures, railway vehicles, containers, outdoor building curtain walls, landscape sculptures, transmission towers, chemical equipment, port machinery | National standard GB/T 4171 Q355NH / Q355GNH; European standard EN 10025-5 S355J0WP / S355J2WP; Japanese standard JIS G3125 SPA-H; corresponding to Corten-A |
| GB/T 11251 Alloy structural steel plate (35CrMo / 42CrMo) | Hot-rolled black leather / polished / peeled / shot blasted / can be finely ground | 42CrMo Typical: C 0.38–0.45, Mn 0.50–0.80, Si 0.17–0.37, Cr 0.90–1.20, Mo 0.15–0.25, P ≤0.035, S ≤0.035 | Engineering machinery, heavy machinery gears, spindles, connecting rods, high-strength bolts, wind power flanges, petroleum machinery, hydraulic supports, high-pressure vessels, mold base materials | AISI 4140 / 4142; EN 10083-3 42CrMo4 (1.7225); Japanese standard JIS SCM440; German standard 42CrMo4 |
| EN 10083-3 34CrMo4/AISI 4135 | Hot rolled black leather / polished / peeled / shot blasted for rust removal | C 0.30–0.37, Mn 0.60–0.90, Si ≤0.40, Cr 0.90–1.20, Mo 0.15–0.30, P ≤0.025, S ≤0.035 | Medium-duty gears, shafts, high-strength bolts, fasteners, engineering machinery structural parts, oil drill pipe joints, locomotive parts | National standard GB/T 11251 35CrMo; AISI 4135; Japanese standard JIS SCM435; German standard 34CrMo4 (1.7220) |
| EN 10083-3 42CrMo4/AISI 4140/4142 | Hot-rolled black leather / polished / peeled / shot blasted / grindable | C 0.38–0.45, Mn 0.60–0.90, Si ≤0.40, Cr 0.90–1.20, Mo 0.15–0.30, P ≤0.025, S ≤0.035; 4142 carbon upper limit is slightly higher (0.43–0.48) | Heavy machinery gears, spindles, connecting rods, wind power flanges, petroleum machinery, hydraulic supports, high-pressure vessels, mold steel base materials, large bolts | National standard GB/T 11251 42CrMo; AISI 4140 / 4142; Japanese standard JIS SCM440; German standard 42CrMo4 (1.7225) |
| EN 10083-3 50CrV4/AISI 6150 | Hot rolled black skin / peeling / shot blasting / can be polished or finish rolled surface | C 0.47–0.55, Mn 0.70–1.10, Si 0.15–0.40, Cr 0.90–1.20, V 0.10–0.25, P ≤0.025, S ≤0.030 | Automotive leaf springs, suspension springs, valve springs, engineering machinery springs, mold springs, high-strength elastic components, clutch plates, shock absorber parts | National standard GB/T 1222 50CrVA; AISI 6150; Japanese standard JIS SUP10; German standard 50CrV4 (1.8159) |
Customer Praise
All products comply with global mainstream standards: API 5L/5CT, ASTM A106/A53/A335, EN 10216, ISO 3183, JIS and GB standards. Complete MTC and third-party inspection certificates are available.
APPLICATION FIELD
Agricultural Machinery
Aerospace
Shipbuilding
Bridge
Oil pipeline
Chemical industry
Steel structure
Architecture
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FAQ
1.Are You Manufacture or Trade Company?
We are the professional manufacturer of steel products located in China. Welcome to contact us and visit our factory before you place orders.
2. How do you guarantee the quality?
We can send you free samples and also accept third-party testing.
We also have test certificates. Every batch of goods is tested before shipment, and the test report will be sent to you by mail or online.
3. Can I get free samples?
Of course you can. We can produce according to your samples or technical drawings. Contact us by whatsapp or email to get free samples and you will get the sample after 3-7 working days.
4. What is the MOQ?
If you are scheduling to place a small quantity order or trial order, feel free to contact us, we can meet your requirements.
5.Can you OEM or ODM?
Yes, we have a strong developing team. The products can be made according to your request.
6.What about your price?
Our price is very competitive because we are a factory. Feel free to contact us if you are interested in our products.
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No.9, South Nenjiang Road, East Taishan Road, Jiangguantun Sub-district, Liaocheng Economic & Technological Development Zone, Liaocheng City, Shandong Province, P.R.China
