Topone G80 Lifting Chain Size Guide for Smart Rigging-Blog-TOPONE Chain Lifting

Rust destroys safety margins fast, yet many heavy lifts happen where blood enzymes, strong acids, or salt spray rule the air. Topone stainless G80 lifting chain answers that challenge. Nitrogen-alloyed 316LN drives yield past 640 MPa while its austenitic matrix blocks chloride pitting, letting one link carry 4 : 1 design loads and stay spotless without paint. This guide unpacks the metallurgy, shows the full size matrix, and explains a six-step selection flow you can finish in a minute. Read on and lift smarter in slaughter halls, chemical reactors, salt caverns, or rolling seas.

Why Stainless Hits G80 Strength

Topone starts with 316LN billet, cold-draws each bar forty percent, bends hot at 200 °C, flash-butt welds inside an argon shroud, solution-anneals at 1 050 °C, then water-quenches in eight seconds. The sequence traps nitrogen, refines grains, and locks chromium in solid solution, so every link shows:

Yield ≥ 640 MPa Tensile ≥ 800 MPa Elongation ≥ 25 %

Charpy ≥ 45 J at −20 °C—essential on winter decks

PREN ≥ 28—no pitting in 3.5 % NaCl after 72 h ASTM G48

No coating, zinc, or phosphate touches the chain. Smooth stainless cleans fast, stays food-safe, and never flakes.

Size & Capacity Matrix

Ø mm	Pitch mm	Inside W min mm	Outside W max mm	WLL kg	Proof kN	Break kN	Mass kg / m
6	18	7.8	22.0	1 400	35	56	0.82
8	24	10.4	29.5	2 500	63	100	1.55
10	30	13.0	37.0	4 000	98	160	2.35
13	39	16.9	48.0	6 700	166	270	3.95
16	48	20.8	59.0	10 000	251	430	5.90

Table 1 – Topone stainless G80 lifting chain dimensions and capacities.

Application Snapshots

Field	Daily Threat	Stainless G80 Advantage	Core Task
Slaughter halls	Blood, steam, sanitiser	Non-magnetic surface cleans without rust	Hoist carcasses, drive overhead rails
Chemical reactors	Acid fumes, CIP wash	Austenite resists HCl, HNO₃, NaOH	Swap filter beds, lift agitator shafts
Salt mines	Brine mist, halite grit	High PREN stops pitting, smooth links ignore grit	Drag washer drums, haul brine pumps
Offshore decks	Wave slam, sub-zero wind	45 J impact energy guards against brittle snaps	Handle ROV tethers, anchor tools

One-Minute Sizing Flow

Write the heaviest daily load.

Add chain plus hook weight and ten-percent margin.

Multiply by the EN 818-4 angle factor (1.4 at 45°, 2.1 at 60° four-leg).

Open Table 1 and pick the first diameter whose WLL beats that tension.

Check outside width against hook throat and headroom.

Log the stamped code “8-SS-TPN + heat” in your inspection app.

Run the six steps and hit strength targets without oversizing.

Field Care in Two Quick Checks

Diameter—scrap at ten-percent wear.

Five-link pitch—retire at three-percent stretch.

Eddy-current scans catch weld cracks because stainless stays non-magnetic, and light oil after washdowns halves galling during the chain’s five-year duty window.

Click on the image to learn more↓

微信图片_20250613140020 https://www.lifting-chain.com/grade-80-series/

Cost View—Lifecycle Wins the Ledger

Sticker price runs higher than painted alloy links, yet three-year field logs show stainless chains in slaughter plants and offshore cranes outlasting carbon G80 by at least triple, so total cost per tonne lifted drops 30 % once downtime and repaint labour enter the calculation.

Conclusion

Move heavy loads through blood, acid, brine, or breakers and keep every link shining—choose Topone stainless G80 lifting chain today.

Topone G80 Lifting Chain Size Guide for Smart Rigging