SAE8620H Alloy Steel Round Bar with High Hardenability Good Weldability and Cold Strain Plasticity
Price:
US $720-1,350 / Ton
MOQ:
1 Ton
Delivery Time:
Negotiable
Product Description
SAE8620H Alloy Solid Round Bar
SAE 8620H alloy steel round bar is a low carbon nickel chromium molybdenum alloy structural steel with excellent carburizing properties, formability, and weldability. This grade offers high hardenability without fragility after tempering, along with good machinability and cold strain plasticity.
Key Features
- Excellent machinability performance
- Superior cold strain plasticity
- Good weldability characteristics
- High hardenability properties
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 | - | - | - |
Detailed Specifications
20NCD2 is a hardenable chromium, molybdenum, nickel low alloy steel specifically designed for carburizing applications to develop case-hardened components with excellent wear characteristics.
Typical Applications
Gears, shafts, bearings, piston rings, ring gears, crankshafts, and other applications requiring a hard carburized case with a tough core. Widely used in transmission systems, tractor motors, and automotive components.
Physical Properties
| Property | Value |
|---|---|
| Modulus of elasticity | 210 x 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 / 780-820°C | Oil, hot bath 160-250°C |
| Tempering | 150-200°C | Air |
Available Stock Sizes
Round bar diameters: 12-380mm
Available in various conditions: pre-hardened, hot rolled, annealed, quenched and tempered, with surface conditions including black, pre-machined, grinding, and polish.
Quality Assurance & Services
Why Choose Our SAE8620H Alloy Steel?
- Quality Assurance: Materials sourced directly from government-owned steel mills with ISO 9001 certified quality management
- Timely Delivery: Speedy processing and delivery for all order sizes with shortest lead times
- Comprehensive Inventory: Unique stock of specialty steel in various sizes and conditions
- Value-Added Services: Metal cutting, sizing, machining (blanking, milling, grinding), heat treatment, and sawing services
- Customer Focus: Excellent customer service with orders of any size or length
The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for illustration purposes to enable evaluation and are not intended as warranties of fitness for any particular purpose.
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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