DIN 1.6523 Material Cold Stretched SAE 8620 Alloy Steel Round Bar with Good Weldability
Price:
US $730-1,380 / Ton
MOQ:
1 Ton
Delivery Time:
Negotiable
Product Description
DIN10278 DIN1.6523 Material Cold Stretched A+C AISI 8620 Steel Rectangular Bar
SAE 8620H alloy steel round bars offer exceptional performance characteristics including high hardenability, excellent machinability, superior cold strain plasticity, and reliable weldability. This low-carbon nickel chromium molybdenum alloy is specifically designed for carburizing applications.
Key Features
Excellent machinability performance
Superior cold strain plasticity
Reliable weldability
High hardenability characteristics
International Standards Equivalents
| Brand Name | Ravne No. | Mat. No. | DIN | EN | AISI |
|---|---|---|---|---|---|
| 20NCD2 | 769 | 1.6523 | 21NiCrMo2 | 20NiCrMo2 | 8620 |
Chemical Composition (Weight %)
| C | Si | Mn | Cr | Mo | Ni | V | W | Others |
|---|---|---|---|---|---|---|---|---|
| 0.20 | max. 0.40 | 0.80 | 0.53 | 0.20 | 0.55 | - | - | - |
Material Description
20NCD2 is a hardenable chromium, molybdenum, nickel low alloy steel specifically designed for carburizing applications to develop case-hardened components. This case-hardening process delivers exceptional wear characteristics and surface durability.
Primary Applications
Ideal for gears, shafts, bearings, and other critical components requiring a hard carburized case combined with a tough, durable core. Commonly used in transmission systems, tractor motors, and automotive applications.
Physical Properties
Modulus of elasticity: 210 × 10³ N/mm²
Density: 7.86 g/cm³
Heat Treatment Specifications
| Treatment | Temperature | Cooling |
|---|---|---|
| Case hardening | 880-980°C | Oil (water), hot bath 160-250°C |
| Carburising | 880-980°C | Oil (water), hot bath 160-250°C |
| Direct hardening | 880-980°C | Oil, hot bath 160-250°C |
| Core refining | 860-900°C | Oil, hot bath 160-250°C |
| Core refining | 780-820°C | Oil, hot bath 160-250°C |
| Tempering | 150-200°C | Air |
Available Stock Sizes
Round Bar Diameter: 12-380mm
Available in various conditions including pre-hardened, hot rolled, annealed, quenched and tempered, with surface conditions ranging from black to pre-machined, grinding, and polished finishes.
Quality Assurance & Service Commitment
• Materials sourced exclusively from certified steel manufacturers
• ISO 9001 certified quality management system
• Speedy and timely delivery with competitive pricing
• Comprehensive value-added services including metal cutting, sizing, machining, and heat treatment
• Sawing services for both small and large quantities
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Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben