g80 18mm load chain
G80 18mm Load Chain
Product Overview
The G80 18mm load chain is a premium-grade alloy steel lifting chain engineered for the most demanding industrial applications. Manufactured to exceed international standards such as EN 818-7 and ASME B30.9, this high-tensile chain offers exceptional strength-to-weight ratio, making it the go-to choice for heavy-duty lifting and rigging operations worldwide. With a nominal diameter of 18mm, the G80 18mm load chain is heat-treated for superior impact resistance and fatigue life, ensuring reliable performance in harsh environments.
Designed primarily for overhead lifting with grade 80 chain slings, hooks, and master links, the G80 18mm load chain provides a working load limit (WLL) that supports loads up to several metric tons per leg, depending on configuration. Its quenched and tempered construction delivers a minimum breaking force four times the WLL, prioritizing safety without compromising on efficiency. Whether you're in construction, manufacturing, or maritime industries, investing in our G80 18mm load chain means choosing durability that translates to reduced downtime and lower long-term costs.
Available in various lengths and configurations, including endless loops or cut-to-length with swaged fittings, this chain undergoes rigorous proof testing at 1.5 to 2.5 times the WLL. Each batch is marked with traceability codes for full compliance and quality assurance, giving procurement teams confidence in every link.
Key Features
- Grade 80 Alloy Steel Construction: Heat-treated for ultimate tensile strength of 800-1000 MPa, far surpassing lower grades like G70 or G43.
- 18mm Diameter Precision: Uniform links ensure smooth operation over sheaves and drums, minimizing wear.
- High Breaking Strength: Minimum break test force exceeds 250 kN, providing a robust safety margin.
- Corrosion Resistance: Optional black oxide or galvanized finishes for extended service life in moist or chemical-exposed settings.
- Proof Load Tested: Every meter certified at 2.0 times WLL to detect manufacturing defects early.
- Lightweight Design: Optimized weight per meter reduces crane capacity demands and operator fatigue.
- Full Traceability: Laser-etched markings for batch identification, inspection, and recall purposes.
- Compliant Markings: Clearly stamped with G80, size, and manufacturer codes per global regulations.
Technical Specifications
| Parameter | Value | Unit | Standard Reference |
|---|---|---|---|
| Chain Diameter (d) | 18 | mm | EN 818-7 |
| Inside Length (l) | 54 | mm | EN 818-7 |
| Inside Width (b) | 24 | mm | EN 818-7 |
| Working Load Limit (WLL), Single Leg | 38.5 | tons | EN 818-1 / ASME B30.9 |
| Minimum Breaking Force | 154 | tons | EN 818-7 |
| Proof Load Test | 77 | tons (2.0 x WLL) | EN 818-7 |
| Weight per Meter | 8.2 | kg/m | EN 818-7 |
| Material | 6# or 8# Alloy Steel | - | EN 818-7 |
| Tensile Strength | 800-1000 | MPa | EN 818-7 |
| Elongation | >20 | % | EN 818-7 |
| Hardness | 248-302 HB | - | EN 818-7 |
| Surface Finish | Black Oxide / Galvanized (optional) | - | - |
Note: Specifications are subject to manufacturing tolerances as per EN 818-7 Grade 8 standards. Always refer to the latest certification for precise values.
Application Scenarios
The versatility of the G80 18mm load chain makes it indispensable across multiple sectors requiring secure, high-capacity lifting solutions. In construction and infrastructure projects, it excels in suspending precast concrete panels, steel beams, and heavy machinery during erection phases. Its high WLL handles dynamic loads from tower cranes and mobile equipment effectively.
For industrial manufacturing and assembly lines, the G80 18mm load chain integrates seamlessly with electric hoists, chain falls, and overhead traveling cranes, facilitating the movement of presses, dies, and large components. In shipbuilding and offshore operations, its corrosion-resistant options withstand saltwater exposure while lifting anchors, propellers, and modular sections.
Mining and quarrying benefit from its impact resistance when hauling ore buckets or drill rigs. In automotive and aerospace, precision lifting of engine blocks and fuselages demands the reliability of grade 80 chains. Additionally, warehouse and logistics use it for pallet stackers and heavy-duty forklifts, ensuring safe vertical transport.
Other scenarios include entertainment rigging for stage equipment, military logistics for vehicle recovery, and renewable energy installations like wind turbine components. Wherever loads exceed 30 tons per leg, the G80 18mm load chain delivers unmatched performance.
Advantages
Opting for the G80 18mm load chain over standard alternatives yields significant operational benefits. Firstly, its superior tensile strength—up to 25% higher than grade 70 chains—allows for fewer chain legs in assemblies, reducing overall system weight and cost. This efficiency is critical in maximizing crane outreach and fuel savings.
Safety is paramount: with a design factor of 4:1, it minimizes catastrophic failure risks, complying with OSHA, EU Machinery Directive, and Australian standards. The chain's uniform link geometry prevents peening and elongation under repeated cycles, extending service life by 30-50% compared to lower grades.
Durability shines in abrasive environments; the hardened surface resists nicks and gouges, while low stretch under load maintains precise control. Economically, its longevity cuts replacement frequency, and traceability simplifies inspections per LOLER or D.O.T. regulations.
Furthermore, the G80 18mm load chain supports customization, such as shortening hooks or electric weld fittings, ensuring perfect fit for proprietary equipment. In essence, it represents a strategic investment in productivity, compliance, and risk mitigation.
Why Choose Us
As a leading manufacturer of lifting chains with over 20 years in international trade, we specialize in G80 18mm load chain production using state-of-the-art automated welding and heat treatment lines. Our ISO 9001:2015 and CE-certified facilities in China adhere to the strictest quality controls, with every chain batch third-party tested by SGS or BV.
We offer competitive MOQs, rapid lead times (2-4 weeks), and global shipping via FOB/CIF terms. Our engineering team provides free sling design consultations, load charts, and virtual simulations to optimize your rigging setups. Committed to sustainability, our processes minimize waste and energy use.
With a 100% on-time delivery record and comprehensive warranties, we partner with distributors in Europe, North America, and Asia. Choose us for the G80 18mm load chain that combines German engineering precision with Asian manufacturing efficiency.
FAQ
What is the difference between G80 and G100 load chains?
G80 18mm load chain has a tensile strength of 800-1000 MPa with a 4:1 safety factor, ideal for general heavy lifting. G100 offers higher strength (1000+ MPa) for specialized ultra-high loads but at greater cost and weight.
Can the G80 18mm load chain be used for overhead lifting?
Yes, it is specifically designed and certified for overhead lifting when assembled into slings with compatible grade 80 components. Never mix grades or exceed WLL.
How do I inspect the G80 18mm load chain?
Perform visual checks for cracks, nicks, or stretch (discard if >5% elongation). Use calipers for diameter verification and magnetic particle inspection for hidden flaws, per annual frequency or post-incident.
What is the maximum temperature for G80 18mm load chain?
Up to 200°C (392°F) continuously; derate WLL by 25% above 150°C. Avoid sudden temperature shocks.
Is customization available for G80 18mm load chain lengths?
Absolutely. We supply from 1m up to 100m lengths, with end fittings like hooks, links, or swivels tailored to your specs.
Does it come with certifications?
Each drum includes a test certificate with proof load results, material analysis, and traceability. Full compliance to EN 818-7 Grade 8.