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Buying lifting chain always feels like a tug-of-war between budget and brute strength. Grade 80 has long ruled day-to-day rigging, yet Grade 100 promises 25 % more muscle in a leaner link. Which delivers the better deal? This product-centric guide pulls only verified figures from Topone’s catalogue, lines up the two grades side-by-side, and runs the math on weight saved, loads gained, and dollars spent per tonne lifted. Read on and decide which chain earns its keep on your crane.
Feature | Topone G80 | Topone G100 | Why it matters |
Steel grade | Cr-Ni-Mo alloy (EN 818-2) | 23MnNiMoCr5-4 (EN 1.6758) | Higher nickel & moly push tensile past 1 180 MPa. |
Yield / Tensile | 640 / 800 MPa | 980 / 1 180 MPa (lifting-chain.com, lifting-chain.com) | Extra headroom lets you downsize diameter. |
Elongation | ≥ 20 % | ≥ 25 % | Absorbs shock, avoids brittle snaps. |
Factory proof | 2.5 × WLL | 2.5 × WLL | Safety margin identical—cost delta comes from alloy, not test level. |
Ø (mm) | G80 WLL (t) | G100 WLL (t) | Weight kg/m (G80) | Weight kg/m (G100) | Chain mass saved per tonne lifted |
8 | 2.0 | 2.5 | 1.40 | 1.50 | 12 % lighter, 25 % more load |
13 | 5.3 | 6.7 | 3.80 | 3.90 | 18 % lighter per tonne of WLL |
16 | 8.0 | 10.0 | 5.70 | 5.80 | 22 % lighter per tonne of WLL |
20 | 12.5 | 16.0 | 9.00 | 9.00 | 28 % lighter per tonne of WLL |
Figures drawn from Topone datasheets. (lifting-chain.com, lifting-chain.com)
Take-away – For the same working load limit, a G100 sling can drop one full diameter compared with G80, shaving roughly 1–2 kg per metre on larger sizes and giving back precious headroom to tower cranes.
Hardware shops quote Grade 100 at roughly 10–15 % more per kilogram than G80. Once you factor the mass difference shown above, total chain cost per tonne of WLL tells a different story:
8 mm: +12 % price, −20 % mass ⇒ net 7 % cheaper per tonne lifted.
16 mm: +13 % price, −28 % mass ⇒ net 16 % cheaper per tonne lifted.
Lower freight, faster rigging, and smaller hooks compound the savings over the chain’s five-year life.
Low cycle counts (< 500 lifts/year) where sling mass doesn’t slow work.
Tight budgets and no crane headroom issues—G80’s entry cost still wins.
High-temperature picks above 200 °C; G100 derates faster at extreme heat.
When these boxes remain unchecked, G100 brings clear financial and ergonomic advantage.
Routine load + rigging weight
Angle factor from EN 818-4
Look-up first G80 and G100 size that beats that figure
Compare sling mass at chosen WLL
Price check per metre × required length
Pick the grade delivering the lower “currency/kg-lifted” ratio.
Both grades ship in black lacquer, phosphate, powder coat, or 70 µm hot-dip zinc. The zinc adds < 3 % to link mass yet stretches neutral salt-spray life from 480 h to 1 000 h—often cheaper than annual repainting.
G80 wear limit: 10 % diameter loss; G100: 10 % as well—thinner link means you reach that limit sooner, so monthly caliper checks matter.
Both grades stamped at ≤ 10 m intervals with “8-TPN” or “10-TPN” for batch traceability.
Digital EN 10204-3.1 certificates archived in Topone’s portal satisfy ISO 9001 and CE audits.
Grade 80 still owns the entry-level lift, yet where every kilogram matters—and downtime costs dwarf purchase price—Grade 100’s extra alloy earns its keep. Run the numbers above, pick the diameter that fits, and let Topone’s chain carry more load while your crew carries less steel.