Alloy steel bars are essential materials for industries requiring high strength, wear resistance, corrosion resistance, and high-temperature performance. As a leading Chinese supplier, we ensure strict quality control, competitive pricing, and flexible customization to meet global buyers’ industrial needs.
Key Product Features
1. High Strength & Excellent Mechanical Performance
Enhanced with alloying elements such as Cr, Mo, Ni, and V to improve yield strength, tensile strength, and impact toughness—ideal for heavy-duty components, shafts, gears, and high-pressure parts.
2. Superior Wear & Corrosion Resistance
Suitable for acidic/alkaline environments, marine conditions, and heavy abrasion applications. Smooth surface finish ensures longer lifespan and reduced maintenance cost.
3. Outstanding Heat-Treatment Response
Supports quenching, tempering, normalizing, and quench-and-temper processes to meet various strength, hardness, and toughness requirements.
4. Excellent Machinability
High dimensional accuracy and stable internal structure make the bars suitable for CNC turning, milling, drilling, grinding, and deep processing, helping customers reduce overall production costs.
5. Advantages as a Chinese Supplier
Large inventory & fast delivery
OEM/ODM customization
Complete machining options (cutting, turning, polishing, chamfering)
100% inspection before shipment
Globally competitive pricing (FOB/CIF/DDP available)
Main Alloy Steel Bar Grades & Properties
| Grade |
Key Properties & Applications |
Customer Value |
| 4140 / 42CrMo |
High strength, impact resistance, suitable for gears, shafts, molds |
Strong load-bearing performance; ideal for heavy-duty components |
| 4340 / 40CrNiMo |
Ultra-high strength, excellent fatigue resistance; used in aerospace & heavy machinery |
Maximum toughness for severe working conditions |
| 8620 |
Excellent carburizing ability, hard surface with tough core |
Widely used in automotive parts; balanced performance |
| H13 (Hot Work Tool Steel) |
High-temperature resistance, thermal fatigue resistance |
Perfect for die casting and hot forging molds |
| D2 (Cold Work Tool Steel) |
High hardness, superior wear resistance |
Suitable for punches, dies, and cutting tools |
| O1 |
Good machinability with medium wear resistance |
Ideal for precision tools and knives |
| Monel 400 |
Exceptional corrosion resistance in seawater and chemicals |
Top choice for marine and chemical industries |
| Inconel 625 |
High strength + excellent high-temperature & corrosion resistance |
Used in aerospace, petrochemical, high-temp equipment |
| Hastelloy C-276 |
Exceptional resistance to strong corrosion and reducing media |
Leading material for chemical processing equipment |
Stable & Reliable Quality
Quality control covers ultrasonic testing, dimensional inspection, and mechanical property testing.
Flexible Production Capability
Support for large diameters (10–600 mm) and customized non-standard sizes.
Excellent Surface Finish Options
Black surface, peeled, polished, turned, or bright finish according to customer requirements.
Strong Cost Advantage
China’s mature industrial chain allows us to provide high-quality alloy bars at globally competitive prices.
