The 8620 Alloy Steel Bar, also known as 8620 Alloy Rod or 8620 Alloy Steel Rod, is a low-alloy steel with excellent hardenability, toughness, and fatigue resistance. Manufactured according to international standards such as ASTM A29, SAE, and DIN, it comes with material certificates, mill test reports, and optional third-party inspection. This alloy bar offers stable mechanical properties, uniform surface quality, and consistent corrosion resistance, making it reliable for critical engineering and industrial applications.
Key Features & Advantages
High Toughness and Fatigue Resistance: Suitable for components subjected to repeated stress and heavy loads.
Good Machinability and Weldability: Easy to process, forge, and fabricate.
Surface Durability: Resistant to wear, abrasion, and mild corrosion.
International Standard Compliance: Certified to ASTM, SAE, DIN, and ISO standards.
Consistent Quality Assurance: Includes inspection reports, material certificates, and optional third-party testing.
Applications
8620 Alloy Steel Rod is widely used in:
Automotive parts: gears, shafts, and crankshafts
Aerospace components: landing gear, high-strength shafts
Heavy machinery: pinions, rollers, and structural components
Energy equipment: turbines, drive shafts
Defense and industrial equipment requiring high toughness and durability
Product Specifications & Technical Data
|
Specification |
Details |
|
Material |
SAE 8620 / AISI 8620 / DIN 1.6523 |
|
Diameter Range |
8 mm – 500 mm (customized sizes available) |
|
Length |
1 m – 12 m, or as per request |
|
Surface Finish |
Black, Bright, Peeled, Polished, Turned |
|
Heat Treatment |
Annealed, Quenched & Tempered, Normalized |
|
Hardness (HB) |
180 – 230 HB (annealed); up to 400 HB (quenched & tempered) |
|
Yield Strength |
≥ 620 MPa |
|
Tensile Strength |
850 – 1000 MPa |
|
Elongation |
12 – 16% |
|
Impact Toughness |
≥ 50 J |
|
Standards |
ASTM A29, SAE, AISI, DIN |
Chemical Composition (wt%)
|
Element |
Typical Content (%) |
|
Carbon (C) |
0.18 – 0.23 |
|
Silicon (Si) |
0.15 – 0.35 |
|
Manganese (Mn) |
0.60 – 0.90 |
|
Chromium (Cr) |
0.40 – 0.60 |
|
Nickel (Ni) |
0.40 – 0.70 |
|
Molybdenum (Mo) |
0.15 – 0.25 |
|
Phosphorus (P) |
≤ 0.035 |
|
Sulfur (S) |
≤ 0.040 |
Customization Services
Special sizes and dimensions available according to drawings
CNC machining, cutting, drilling, welding, and forging services
Multiple heat treatment options to meet specific hardness or strength requirements
Flexible MOQ for both trial and bulk orders
Custom packaging and protective coatings for export
Price & Delivery
Competitive factory-direct pricing with bulk discounts
Available stock for standard sizes for immediate shipment
Customized orders: lead time 7–20 days depending on specification
Export-standard packaging ensures safe worldwide delivery
Our Strength
Jiangsu Cunrui Metal Products Co., Ltd. offers:
Advanced steel bar production lines and heat treatment equipment
Annual supply capacity of thousands of tons
ISO-certified quality management system
Extensive export experience to Europe, Asia, Middle East, and beyond
Experienced technical team and R&D support for complex projects
Service & Support
Fast inquiry response (within 12 hours)
Material selection and technical guidance
Secure export-standard packaging
After-sales support with return/replacement options for quality issues
FAQ
Q1: Can you provide third-party inspection reports?
A1: Yes, SGS, TÜV, and other third-party inspection reports are available upon request.
Q2: What is the minimum order quantity (MOQ)?
A2: MOQ is flexible depending on stock availability and project requirements.
Q3: How does 8620 Alloy Steel Rod differ from standard carbon steel?
A3: 8620 Alloy Steel offers superior toughness, hardenability, and fatigue resistance for high-load applications.
Q4: What surface finishes are available?
A4: Black, bright, polished, peeled, turned, and customized coatings such as zinc or rust-proof oil are available.
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