Stainless steel lifting chain Grade 43

lashingcorrosion-resistantfor heavy loads

Introduction
TOPONE G43 Stainless Steel Chain is a TIG-welded, corrosion-resistant utility chain intended for cargo lashing, towing, agricultural work, industrial securing and compatible marine anchoring systems. The stainless steel surface requires no paint, galvanizing or protective coating. The product is intended for gradual pulling and load-securing forces only.

Key features

• TIG (Gas Tungsten Arc) welded links under argon shielding for consistent weld quality.
• Corrosion resistance inherent to stainless-steel metallurgy; does not rely on sacrificial coatings.
• Suitable for humid, coastal, marine and industrial environments where a clean metal surface and corrosion resistance are required.
• Not intended for overhead lifting, hoisting, cranes, chain slings, chain blocks, suspended loads or personnel lifting.

Typical applications

• Cargo lashing and transport restraint
• Gradual towing and tailgate restraint
• Agricultural connections and guard chains
• General industrial securing and marine anchor or windlass systems (confirm dimensional compatibility with windlass)

Parameter (dimensions, loads and weights)
Header: Size (mm) | D +/- (mm) | Inside Length A (mm) | A +/- (mm) | Outside Width B (mm) | B +/- (mm) | Working Load (KG) | Test Load (N) | Breaking Load (N) | Weight Per M (KG)
3 | 0.5 | 26 | 1.2 | 12 | 0.6 | 55 | 1050 | 3200 | 0.15
4 | 0.5 | 32 | 1.5 | 16 | 0.8 | 100 | 2000 | 6000 | 0.27
5 | 0.5 | 35 | 1.8 | 20 | 1.0 | 160 | 3150 | 10000 | 0.43
6 | 0.5 | 42 | 2.0 | 24 | 1.2 | 224 | 4500 | 14000 | 0.63
7 | 0.5 | 49 | 2.5 | 28 | 1.4 | 300 | 6000 | 18000 | 0.86
8 | 0.5 | 52 | 2.5 | 32 | 1.6 | 400 | 8000 | 25000 | 1.10
9 | 0.5 | 59 | 3.0 | 36 | 1.8 | 530 | 10500 | 32000 | 1.41
10 | 1.0 | 65 | 3.2 | 40 | 2.0 | 630 | 12500 | 40000 | 1.75
11 | 1.0 | 72 | 3.4 | 44 | 2.0 | 790 | 15800 | 47500 | 2.11
12 | 1.0 | 78 | 3.6 | 48 | 2.3 | 940 | 18800 | 56500 | 2.55
13 | 1.0 | 82 | 4.0 | 52 | 2.5 | 1000 | 21200 | 63000 | 2.95
16 | 1.0 | 100 | 5.0 | 64 | 3.2 | 1600 | 33000 | 100000 | 4.45
18 | 1.0 | 113 | 5.2 | 70 | 3.2 | 2120 | 42300 | 127000 | 5.65
19 | 1.0 | 119 | 5.6 | 72 | 3.4 | 2370 | 47300 | 142000 | 6.25
20 | 1.0 | 120 | 6.0 | 75 | 3.8 | 2500 | 50000 | 160000 | 7.00
22 | 1.0 | 127 | 6.0 | 82 | 4.0 | 3170 | 63300 | 190000 | 8.55
25 | 1.0 | 140 | 6.6 | 88 | 4.2 | 4090 | 81700 | 245000 | 10.90
28 | 1.0 | 152 | 7.0 | 96 | 4.7 | 6000 | 120000 | 300000 | 13.90
32 | 1.0 | 171 | 7.8 | 108 | 5.2 | 8000 | 160000 | 400000 | 18.20

Parameter notes
The WLL (Working Load Limit) applies to an undamaged, straight chain under gradual direct tension. Shock loading, twisting, knotting, side loading and loading over sharp edges reduce chain capacity. Do not use a carbon-steel G43 load table for this stainless steel product unless TOPONE testing confirms identical dimensions, proof load, breaking load and design factor. The component with the lowest WLL determines the capacity of the complete assembly.

Optional materials
Type 304 (06Cr19Ni10 / S30408 / UNS S30400 / EN 1.4301) - good general corrosion resistance, formability and weldability.
Type 321 (06Cr18Ni11Ti / S32168 / UNS S32100 / EN 1.4541) - titanium stabilization for improved intergranular corrosion resistance after welding or elevated-temperature exposure.
Type 316 (06Cr17Ni12Mo2 / S31608 / UNS S31600 / EN 1.4401) - molybdenum improves resistance to pitting and crevice corrosion in chloride environments.
Type 316Ti (06Cr17Ni12Mo2Ti / S31668 / UNS S31635 / EN 1.4571) - Type 316 with titanium stabilization for welded/high-temperature applications.
Type 310S, Duplex 2205, Super Duplex 2507, Type 317, Alloy 800H, 904L - available for specific corrosion, strength or high-temperature requirements (see material selection table).

Standards, manufacturing and testing
NACM Welded Steel Chain Specifications used as primary dimensional/mechanical reference; MIL-DTL-32655 used only when specified and certified. MOQ: 100 Meters. Package: Carton + Steel Pallet. Manufacturing: TIG welding under argon shielding; production inspection includes material verification, chemical and mechanical testing, chain diameter and link-dimension inspection, visual weld inspection, proof-load testing, breaking-load verification, WLL verification, surface inspection, grade and batch traceability, and final inspection certificate.

Application and maintenance

• Use only for non-lifting applications stated in technical documentation.
• When used with hooks, shackles or load binders, every component must have a compatible WLL; never exceed the lowest-rated component.
• Marine anchor/windlass use requires dimensional compatibility with windlass manufacturer and appropriate corrosion resistance.
• Inspect chain before use and at regular intervals for cracks, deformation, elongation, wear, pitting, crevice corrosion and loss of cross-section.
• Rinse with fresh water after seawater exposure and dry before storage; avoid contamination from carbon-steel dust and unclean tools.
• Do not weld, heat, bend, coat or repair a finished G43 stainless steel chain; remove from service when marking is illegible or measurements exceed discard limits.

Characteristics / technical specifications

• Brand: TOPONE CHAIN
• Commercial name: G43 Stainless Steel Chain
• Construction: TIG welded stainless steel links (argon shielding)
• Applications: cargo lashing, towing, agricultural, industrial securing, compatible marine anchoring (non-overhead lifting)
• Available diameters and corresponding WLL, test load, breaking load and weight per meter as per parameter table above
• Materials available: Type 304, 316, 316Ti, 321, 310S, Duplex 2205, Super Duplex 2507, Type 317, Alloy 800H, 904L
• MOQ: 100 Meters
• Packaging: Carton + Steel Pallet
• Not for overhead lifting or personnel lifting