Custom Forged Mining Chain Rings 100-600mm with 850-1200 MPa Tensile Strength and HRC 55-60 Surface Hardness
Price:
$0.5-2
MOQ:
100pcs
Delivery Time:
30 days
Brand:
Qingdao Sande Tech Co.,Ltd
Product Description
Custom Forged Mining Chain Rings and Components
We provide precision forging services for mining chain rings, forged steel parts, and heavy-duty chains engineered to withstand extreme abrasion, impact, and tensile loads in demanding mining operations.
Key Features and Technical Advantages
Superior Material Strength
- Alloy options: 4140, 4340, 42CrMo4, and custom high-wear steels
- Tensile strength: 850-1,200 MPa (heat-treated)
- Impact toughness: 40-60 J/cm² at -20°C (Charpy V-notch tested)
Advanced Forging Technology
- Closed-die forging for optimized grain flow and 30% higher fatigue life
- Precision CNC machining with ±0.05mm tolerances
- Non-destructive testing: ultrasonic, magnetic particle, and dye penetrant inspection
Enhanced Wear and Corrosion Resistance
- Induction hardening (HRC 55-60 on wear surfaces)
- QPQ salt bath nitriding for corrosion protection
- Tungsten carbide overlay for extreme abrasion zones
Technical Specifications
| Parameter | Chain Rings | Forged Chains | Custom Forged Parts |
|---|---|---|---|
| Material Standards | DIN 17200/EN 10083 | DIN 5685/ISO 1834 | ASTM A668/AISI 4140+ |
| Dimensions | Ø100-600mm x 20-150mm thick | 10-50mm diameter x any length | Max 500kg single piece |
| Tensile Strength | 850-1200 MPa (HT) | 800-1100 MPa (HT) | 900-1400 MPa (custom HT) |
| Hardness | Core: 28-32 HRC Surface: 55-60 HRC (IH)* |
Core: 26-30 HRC Surface: 50-55 HRC (IH) |
Core: Custom Surface: Up to 62 HRC |
| Impact Toughness | 40J @ -20°C | 35J @ -20°C | 45J+ @ -40°C (low-temp) |
| Load Capacity | 5:1 safety factor | 4:1 safety factor | Designed to DIN 15435 |
| Dimensional Tolerance | ±0.3% of OD | ±0.2mm pitch accuracy | ±0.05mm (machined) |
| Surface Treatment | QPQ/Tungsten overlay | Shot peened + oil coating | Custom zone hardening |
| Testing | UT+MPI+macroetch | Proof load + fatigue test | 3D scanning + FEA report |
| Certifications | MSHA, ISO 9001 | DNV/ABS class approved | CE/PED 2014/68/EU |
Frequently Asked Questions
Why choose forged over cast/welded mining components?
- 3x longer service life: directional grain flow resists crack propagation
- Higher safety factors: no porosity defects for load-bearing parts
- Proven performance: withstand 50% more impact energy than cast equivalents
How do I select the right alloy for my mining application?
| Condition | Recommended Alloy | Key Advantage |
|---|---|---|
| High abrasion (iron ore) | 42CrMo4 + tungsten overlay | 60HRC wear surfaces |
| Sub-zero temperatures | 4340 Mod (-60°C rated) | Maintains 40J impact at -40°C |
| Acidic slurry environments | 20MnCr5 + QPQ | Corrosion resistance + 850MPa TS |
What certifications do your forged chains carry?
- Mandatory: MSHA 30 CFR Part 7 (US underground mining)
- Global: CE/PED 2014/68/EU, DNVGL-ST-0378 (offshore)
- OEM-specific: Meet Komatsu/Joy Global procurement specifications
Can you replicate our existing chain ring design?
- Reverse engineering: provide 1 worn sample for 3D scanning
- Legacy tooling: utilize existing die designs with modifications for improved life
- Performance upgrades: suggest material and heat treatment improvements
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Qingdao Sande Technology Co., LTD
Location
South Building, China-South Korea Maker Industrial Park, Chengyang District, Qingdao City, Shandong Province
Contact Person
tian