DIAGRAMS
Key Specifications of en 818-2 G80 Alloy Chain
Our EN 818-2 G80 alloy chain is designed for buyers who need reliable lifting performance, consistent dimensions and documented quality control. Each production lot is controlled from raw material inspection to welding, calibration, heat treatment, proof testing and final marking.
| Nominal Chain Size | Material Diameter | Working Load Limit(Max.) | Proof Test(Min.) | Minimum Breaking Force | Inside Length(Max.) | Inside Width Range | |||||||
| in | mm | in | mm | Ibs | kg | Ibs | kN | Ibs | kN | in | mm | in | mm |
| 7/32 | 5.5 | 0.217 | 5.5 | 2,100 | 970 | 4,200 | 19.0 | 8,400 | 38.0 | 0.69 | 17.6 | 0.281-0.325 | 7.14-8.25 |
| 9/32 | 7.0 | 0.276 | 7.0 | 3,500 | 1,570 | 7,000 | 30.8 | 14,000 | 61.6 | 0.90 | 22.9 | 0.375-0.430 | 9.53-10.92 |
| 5/16 | 8.0 | 0.315 | 8.0 | 4,500 | 2,000 | 9,000 | 40.3 | 18,000 | 80.6 | 1.04 | 26.4 | 0.430-0.500 | 10.92-12.70 |
| 3/8 | 10.0 | 0.394 | 10.0 | 7,100 | 3,200 | 14,200 | 63.0 | 28,400 | 126.0 | 1.26 | 32.0 | 0.512-0.600 | 13.00-15.20 |
| 1/2 | 13.0 | 0.512 | 13.0 | 12,000 | 5,400 | 24,000 | 107.0 | 48,000 | 214.0 | 1.64 | 41.6 | 0.688-0.768 | 17.48-19.50 |
| 5/8 | 16.0 | 0.630 | 16.0 | 18,000 | 8,200 | 36,200 | 161.0 | 72,400 | 322.0 | 2.02 | 51.2 | 0.812-0.945 | 20.63-24.00 |
| 3/4 | 20.0 | 0.787 | 20.0 | 28,300 | 12,800 | 56,600 | 252.0 | 113,200 | 504.0 | 2.52 | 64.0 | 0.984-1.180 | 25.00-30.00 |
| 7/8 | 22.0 | 0.866 | 22.0 | 34,200 | 15,500 | 68,400 | 305.0 | 136,800 | 610.0 | 2.77 | 70.4 | 1.080-1.300 | 27.50-33.00 |
| 1 | 26.0 | 1.020 | 26.0 | 47,700 | 21,600 | 95,400 | 425.0 | 190,800 | 850.0 | 3.28 | 83.2 | 1.280-1.540 | 32.50-39.00 |
| 1-1/4 | 32.0 | 1.260 | 32.0 | 72,300 | 32,800 | 144,600 | 644.0 | 289,200 | 1288.0 | 4.03 | 102.4 | 1.580-1.890 | 40.00-48.00 |
• Standard: EN 818-2 Grade 80 alloy lifting chain
• Size range: 6 mm to 32 mm standard sizes
• WLL range: 1.12 t to 31.5 t depending on chain diameter
• Safety factor: 4:1 with proof load at 2.5× WLL
• Finish options: black oxide, black painted, self-color with oil, electro-galvanized, powder coated or E-coat by order
• Documents: batch test report, material certificate and inspection certificate available
Caution:
DO NOT EXCEED THE WORKING LOAD LIMIT.
WORKING LOAD LIMIT designates the maximum stress in pounds which should ever be applied to chain. This refers also to chain in the best condition, when new, and when the load is applied uniformly to a straight, untwisted length of chain.
WARNING: WORK LOAD LIMIT MUST NOT BE EXCEEDED.
BREAK TEST LOAD is the minimum load in pounds at which new chain has been found by experience to break, under tests in which the load is applied in direct tension to a straight length of chain with a uniform rate of speed on a standard chain testing machine.
DESIGN of Grade 80 Alloy Steel Chain
GRADE
- G80
Finish Options for G80 Lifting Chain
- Black oxide / black painted: common finish for Grade 80 lifting chain; strong visual identification and economical corrosion protection.
- Self-color with oil: economical option for short storage periods or customers who will apply their own coating.
- Electro-galvanized: available by order where the process is controlled and post-finish testing/certification is required.
- Powder coated / color painted: useful for color coding, branding and additional surface protection.
- Electrophoretic coating / E-coat: uniform coating option for customers who require consistent appearance and improved surface coverage.
STANDARDS
- Meets or exceeds OSHA, Government, NACM, and ASTM specification requirements
HEAT TREATMENT
1. Raw material inspection: chemical composition and steel grade are checked before production.
2. Welding and calibration: links are formed, welded and dimensionally controlled.
3. Quenching and tempering: heat treatment develops Grade 80 strength and toughness.
4. Dimensional inspection: pitch, inner width, outer width and diameter are verified.
5. Proof load testing: each batch is tested before release.
6. Marking and packing: chain is marked, documented and packed for export.
BATCH TESTING CHECKLIST
• EN 818-2 Grade 80 reference
• Chain diameter and pitch
• Working Load Limit (WLL)
• Manufacturing proof load / proof force
• Minimum breaking load / breaking force
• Heat number or material batch
• Production batch number
• Finish and packing method
• Dimensional inspection results
• Tensile/breaking test result
• Inspector/date/signature
APPLICATION
Grade 80 alloy chain is widely used in chain sling assemblies, lifting points, rigging systems, crane service, construction lifting, machinery handling, steel fabrication, transport maintenance and general industrial material handling. For complete assemblies, pair the chain with compatible G80 hooks, master links, connecting links and tags rated for the same working load system.
MATERIAL
- High-Quality Alloy Steel.
Why Source G80 Alloy Chain from PowerFul Machinery?
Factory-direct supply
Buy directly from a Chinese manufacturer with chain and rigging expertise.
One-Stop Sourcing
Combine G80 chain with hooks, shackles, master links, wire rope fittings and lifting accessories.
Quality Control
Raw material checks, controlled heat treatment, dimensional inspection and batch proof testing.
Custom Support
Size, finish, marking, packaging and documentation can be prepared for distributor and OEM requirements.
FAQ of Grade 80 Alloy Chain
What standard should Grade 80 lifting chain meet?
For chain slings in many markets, Grade 80 lifting chain is commonly specified to EN 818-2. Buyers should confirm the required local standard and certificate format before ordering.
What is G80 alloy chain?
G80 alloy chain is Grade 80 heat-treated alloy steel lifting chain designed for chain slings, rigging and overhead lifting assemblies when used with compatible rated components and proper certification.
What is the WLL range for your G80 alloy chain?
Common sizes from 6 mm to 32 mm cover WLL values from 1.12 t to 31.5 t. The correct WLL depends on chain diameter, sling configuration and lifting angle.
Is G80 chain suitable for overhead lifting?
Grade 80 alloy chain is widely used for overhead lifting when it is manufactured, tested, certified and assembled with compatible lifting components according to the required standard.
What is the proof load of Grade 80 chain?
A common EN 818-2 Grade 80 specification uses a manufacturing proof load of 2.5× the Working Load Limit. The proof load should be shown in the batch test certificate.
What is the minimum breaking load?
The minimum breaking load is commonly 4× WLL for Grade 80 lifting chain. It is not the working load; it is a destructive-test value used to verify design factor.
Can Grade 80 chain be galvanized?
Galvanizing heat-treated lifting chain requires process control and certification review. Do not assume a galvanized finish is acceptable for lifting unless the finished chain is tested and certified for the required WLL.
How does G80 alloy chain compare to lower-grade chain?
G80 alloy chain delivers higher strength and better fatigue resistance than lower-grade carbon chains. You lift heavier loads with smaller chain sizes. Manufacturing-grade control ensures predictable elongation and break behavior. Lower grades suit load binding rather than overhead lifting.
Comparison highlights
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Higher working load limit
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Better shock resistance
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Designed for overhead lifting
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Longer service life
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Compatible with lifting fittings
How should G80 alloy chain be inspected?
Inspection keeps lifting operations safe. You inspect alloy chain before use and during service life. Visual checks catch wear, stretching, or cracks early. Manufacturer markings help confirm grade and size during inspections.
Inspection focus areas
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Link elongation
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Surface cracks
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Excessive wear
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Heat discoloration
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Missing identification marks
Can you provide custom marking or packaging?
Yes. Custom marking, brand tags, drum packing, bundle packing, pallet packing and export packaging can be discussed based on order quantity and destination market requirements.
What information should I send for a quote?
Please send chain diameter, required length or quantity, finish, target standard, certificate requirements, packaging method and destination port or country.
Need EN 818-2 G80 alloy chain with WLL table and batch test certificates? Send your chain diameter, quantity, finish and certificate requirements to get a fast factory quote.
