G100 Lifting Chains: Engineering Views to Heavy Load Handling

Material Science & Manufacturing Specifications

Metallurgical Composition

G100 lifting chains use SCM440 alloy steel with precise elemental ratios:

• Carbon (0.38-0.43%) for hardness
• Chromium (0.90-1.20%) for corrosion resistance
• Molybdenum (0.15-0.30%) for high-temperature stability

Heat treatment process involves:

• Austenitizing at 850°C (1,562°F)
• Quenching in polymer solution (cooling rate: 25°C/s)
• Tempering at 450°C to HRC 40-45 hardness

Comparison Analysis of Lifting Chain Grades Parameter G100 G80 Critical Note: G100 chains should be used with Grade 100 shackles to maintain load integrity. Load Capacity Engineering

Load Capacity Engineering

 Dynamic Load Factors

• Shock loads reduce effective WLL by 30-50%
• Temperature derating factors:
• 10% derate at 200°C
• 25% derate at 300°C

Industrial Application Examples

1. Offshore Crane Operations (North Sea)

• Problem: Saltwater corrosion + dynamic 50-ton loads
• Solution: Zn-Ni coated G100 chains (ISO 9227 Class 5)
• Result: Service life doubled from 18 to 36 months

2. Mining Shaft Elevators (Chile)

• Problem: Abrasive dust + continuous 24/7 operation
• Solution: 28mm G100 chains + tungsten carbide wear plates
• Result: Replacement period increased by 400%

Technical Specifications for Purchase

1. Certification Specifications

• EN 818-2:2016 (Type T chain)
• ASME B30.9 Section 9
• DNVGL-OS-E304 (Marine applications)

2. Quality Control Parameters

Maintenance & Failure Analysis

1. Wear Progression Monitoring

• Stage 1 (0-1% diameter decrease): Normal wear
• Stage 2 (1-3% decrease): Inspect more often
• Stage 3 (>3% decrease): Replace at once

2. Typical Failure Modes

DIN 21061 Grade 100 Chain                                                        EN 818-4 Grade 100 Chain Lifting Slings                            Pas 1061 Grade 100 Chain

Optimize Your Lifting Systems with Precision Engineering

Xintai Taida Mirso Co., LTD delivers G80 alloy chains manufactured in our 15,000㎡ ISO 9001-certified facility, combining robotic welding precision (0.1mm accuracy) with ASME B30.9 compliance. With 9 automated lines producing 500,000+ chains annually, we serve 30+ countries across mining, maritime, and construction sectors.

Why Partner With Us?
✓ Certified Quality – EN 818-2 & DNVGL-OS-E304 certified
✓ Custom Solutions – Chains for extreme temps (-40°C to 400°C) and corrosive environments
✓ Global Support – 48-hour technical response & DDP shipping

Limited Offer: First orders over $3,000 receive free load calculation software.

Contact Our Engineers Today:
📧 [email protected]
📞 +86 18766656705

Serving global clients since 2008 with 98% on-time delivery rate.