Product Overview
Our Grade 80 and Grade 100 heavy-duty rigging chains are manufactured from select alloy steel and processed through computer-controlled heat treatment lines. Built to meet EN 818-2, ASTM A973, and ISO 16877 standards, each chain batch undergoes 100% proof load testing and features permanent embossed markings for complete supply chain traceability.
Standards Compliance: EN 818-2 | ASTM A973 | ISO 16877
Material Grades: 20Mn2 (Grade 80) | Advanced Cr-Ni-Mo Alloy (Grade 100)
Safety Factor: 4:1 (Overhead Lifting) | 5:1 Custom Configurable
Quality Assurance: EN 10204 3.1 Material Test Certificate Provided
Technical Specifications
|
Chain Size (mm) |
Grade 80 WLL (Tons) |
Grade 100 WLL (Tons) |
Proof Load (kN) |
Min. Breaking Force (kN) |
Approx. Weight (kg/m) |
|
6 mm |
1.12 |
1.40 |
28.3 |
45.2 |
0.80 |
|
8 mm |
2.00 |
2.50 |
50.3 |
80.4 |
1.40 |
|
10 mm |
3.15 |
4.00 |
78.5 |
126.0 |
2.20 |
|
13 mm |
5.30 |
6.70 |
133.0 |
212.0 |
3.80 |
|
16 mm |
8.00 |
10.00 |
201.0 |
322.0 |
5.70 |
|
20 mm |
12.50 |
16.00 |
314.0 |
503.0 |
9.00 |
|
22 mm |
15.00 |
19.00 |
380.0 |
608.0 |
11.00 |
|
32 mm |
31.50 |
40.00 |
804.0 |
1280.0 |
23.00 |
Grade 80 vs. Grade 100 Rigging Chain Comparison
|
Feature |
Grade 80 Rigging Chain |
Grade 100 Rigging Chain |
|
Material Base |
20Mn2 Manganese Alloy Steel |
Advanced Cr-Ni-Mo Alloy Steel |
|
Load Capacity |
Standard high-strength lifting capacity |
25% higher WLL than G80 of the same size |
|
Weight Efficiency |
Ideal for standard overhead slings |
Reduced weight profile for easier handling |
|
Hardness & Wear |
Core toughness with high ductility |
Superior surface hardness and fatigue resistance |
|
Primary Markets |
Rigging suppliers, construction, general handling |
Heavy lifting contractors, mining, offshore projects |
Uncompromising Manufacturing & Quality Control
Raw Material Inspection: Every steel rod coil is verified via spectral chemical analysis to ensure precise carbon, manganese, and alloy balance before processing.
Flash Butt Welding & Calibration: Automated continuous forming lines ensure pitch uniformity and full-penetration weld integrity across every link.
Controlled Quenching & Tempering: Computer-monitored heat treatment delivers a balanced metallurgical structure, combining high tensile strength with an elongation rate exceeding 20% to prevent brittle failure.
100% Proof Load Testing: Every length of chain is subjected to 2.5 times its Working Load Limit (WLL) on horizontal test beds prior to finishing.
Traceability & Certification: Permanent grade stamps (e.g., "G80" or "G100") are embossed at maximum 20-link intervals. Every order ships with a full EN 10204 3.1 Mill Test Certificate.
Surface Treatment & Customization Options
Surface Finishes: Black Oxide, Self-Colored, Yellow Zinc Plated, Hot-Dip Galvanized, or Custom Powder Coating.
Packaging Solutions: Heavy-duty steel drums, wooden cases, export pallets, or cut-to-length bundle packaging with custom barcoding.
Sling Assembly: Pre-assembled 1-leg, 2-leg, 3-leg, and 4-leg chain slings fitted with clevis hooks, master links, and connecting shackles.
Primary Applications
Construction & Infrastructure: Crane hoist chains, steel structure positioning, and heavy modular lifting.
Mining & Heavy Industry: High-abrasion equipment maintenance, underground handling, and conveyor systems.
Maritime & Offshore: Port container handling, deck cargo securing, and marine rigging systems.
FAQ
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