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直径*内长(mm) zize dxp(mm)Width(宽度)每米单重(kg/m) ApproxWeight (kg/m)工作拉力(t) Working LoadLimit (t)试验拉力(KN) Test Load (kN)破断力(KN) BreakingLoadmin. (KN)最小内宽.w1 lnside min .w1最大外宽.w3 Outside max.w34x125.214.80.350.512.620.15x156
The Grade 80 chain pairs a heat-treated alloy steel body with flexible surface finishing, giving the chain dependable strength and corrosion resistance across lifting, rigging, and cargo-lashing service. Available in sizes from 4×12 mm to 45×135 mm, with working load limits from 0.5 t up to 63 t and minimum breaking loads up to 2,540 kN, it's built for overhead lifting, chain slings, and transport tie-downs where a load needs to be held securely — not just covered and driven away.
Surface treatment is tailored to your needs: hot-dip zinc, dacromet, metal-coated, black, oiled, or various other finishes are available on request. Safety Assurance: 4-fold safety factor, with every chain tested to 2.5 times the proof load — see the specification table below to confirm which size fits your application.
Made from high-strength alloy steel with excellent load-bearing capacity and durability.
Available with hot-dip zinc, Dacromet, metal coating, black, oil and other customized surface treatments.
Designed with a 4:1 safety factor and tested at 2.5 times the working load for reliable lifting safety.
Strict production and quality control ensure consistent dimensions, strength and performance for demanding lifting applications.
Not every chain job needs an oversized rating or a special coating. Where a load is lifted and secured at one fixed point — a chain sling, a trailer tie-down, a rigging point — a standard grade-80 chain does the job at lower cost and with less to maintain than a specially coated or oversized unit. The Grade 80 chain is built for exactly that: dependable, certified load security.
Which Grade 80 chain fits your job? If your service is outdoors or corrosive, the hot-dip zinc, dacromet, metal-coated, black, or oiled finishes add long-term protection. If your load is heavy, sizes up to 45×135 mm deliver a 63 t working load limit with breaking loads up to 2,540 kN. If you just need straightforward load securing, the standard plain finish is the simpler, more economical choice.Compare: EN818-2 Load chain Compare: 818-7 Lifting Chain
| Size dxp(mm) | Width | Approx Weight (kg/m) | Working Load Limit (t) | Test Load (KN) | Breaking Load min. (KN) | |
| lnside min .w1 | Outside max.w3 | |||||
| 4x12 | 5.2 | 14.8 | 0.35 | 0.5 | 12.6 | 20.1 |
| 5x15 | 6.5 | 18.5 | 0.5 | 0.8 | 19.6 | 31.4 |
| 6x18 | 7.8 | 22.2 | 0.8 | 1.12 | 28.3 | 45.2 |
| 7x21 | 9.1 | 25.9 | 1.1 | 1.5 | 38.5 | 61.6 |
| 8x24 | 10.4 | 29.6 | 1.4 | 2 | 50.3 | 80.4 |
| 10x30 | 13 | 37 | 2.2 | 3.15 | 78.5 | 126 |
| 13x39 | 16.9 | 48.1 | 3.8 | 5.3 | 133 | 212 |
| 16x48 | 20.8 | 59.2 | 5.7 | 8 | 201 | 322 |
| 18x54 | 23.4 | 66.6 | 7.3 | 10 | 254 | 407 |
| 19x57 | 24.7 | 70.3 | 8.1 | 11.2 | 284 | 454 |
| 20×60 | 26 | 74 | 9 | 12.5 | 314 | 503 |
| 22x66 | 28.6 | 81.4 | 10.9 | 15 | 380 | 608 |
| 23×69 | 29.9 | 85.1 | 12 | 16 | 415 | 665 |
| 25×75 | 32.5 | 92.5 | 14.1 | 20 | 491 | 785 |
| 26x78 | 33.8 | 96.2 | 15.2 | 21.2 | 531 | 849 |
| 28×84 | 36.4 | 104 | 17.6 | 25 | 616 | 985 |
| 32×96 | 41.6 | 118 | 23 | 31.5 | 804 | 1290 |
| 36×108 | 46.8 | 133 | 29 | 40 | 1020 | 1630 |
| 40×120 | 52 | 148 | 36 | 50 | 1260 | 2010 |
| 45×135 | 58.5 | 167 | 45.5 | 63 | 1590 | 2540 |
| Size dxp(mm) | Width | Approx Weight (kg/m) | Working Load Limit (t) | Test Load (KN) | Breaking Load min. (KN) | |
| lnside min .w1 | Outside max.w3 | |||||
| 4x12 | 5.2 | 14.8 | 0.35 | 0.5 | 12.6 | 20.1 |
| 5x15 | 6.5 | 18.5 | 0.5 | 0.8 | 19.6 | 31.4 |
| 6x18 | 7.8 | 22.2 | 0.8 | 1.12 | 28.3 | 45.2 |
| 7x21 | 9.1 | 25.9 | 1.1 | 1.5 | 38.5 | 61.6 |
| 8x24 | 10.4 | 29.6 | 1.4 | 2 | 50.3 | 80.4 |
| 10x30 | 13 | 37 | 2.2 | 3.15 | 78.5 | 126 |
| 13x39 | 16.9 | 48.1 | 3.8 | 5.3 | 133 | 212 |
| 16x48 | 20.8 | 59.2 | 5.7 | 8 | 201 | 322 |
| 18x54 | 23.4 | 66.6 | 7.3 | 10 | 254 | 407 |
| 19x57 | 24.7 | 70.3 | 8.1 | 11.2 | 284 | 454 |
| 20×60 | 26 | 74 | 9 | 12.5 | 314 | 503 |
| 22x66 | 28.6 | 81.4 | 10.9 | 15 | 380 | 608 |
| 23×69 | 29.9 | 85.1 | 12 | 16 | 415 | 665 |
| 25×75 | 32.5 | 92.5 | 14.1 | 20 | 491 | 785 |
| 26x78 | 33.8 | 96.2 | 15.2 | 21.2 | 531 | 849 |
| 28×84 | 36.4 | 104 | 17.6 | 25 | 616 | 985 |
| 32×96 | 41.6 | 118 | 23 | 31.5 | 804 | 1290 |
| 36×108 | 46.8 | 133 | 29 | 40 | 1020 | 1630 |
| 40×120 | 52 | 148 | 36 | 50 | 1260 | 2010 |
| 45×135 | 58.5 | 167 | 45.5 | 63 | 1590 | 2540 |
Choose from 0.5–63 t working load limit based on your heaviest rated load, plus a safety margin.
Pick from 4×12 mm to 45×135 mm; larger sizes deliver higher capacity, with breaking loads up to 2,540 kN.
For outdoor or corrosive service, choose hot-dip zinc, dacromet, metal-coated, black, or oiled finishes; plain finish suits normal indoor use.
Verify the Grade 80 marking; every chain is tested to 2.5 times the proof load and rated with a 4-fold safety factor.
Heat-treated Grade 80 alloy steel for high tensile strength and excellent wear resistance
4-fold safety factor, with breaking load approximately 4× the working load limit
Sizes from 4×12 mm to 45×135 mm, with working load limits from 0.5 t to 63 t
Hot-dip zinc, dacromet, metal-coated, black, oiled, or other finishes available on request
Every chain is tested to 2.5 times the proof load for reliable, traceable quality
Suitable for lifting, rigging, cargo lashing, and heavy-duty transport scenarios
What's the difference between a Grade 80 chain and a standard chain?
A Grade 80 chain is made from heat-treated alloy steel with a 4-fold safety factor, delivering higher tensile strength and wear resistance than ordinary carbon-steel chain. Choose Grade 80 for lifting, rigging, and heavy-duty lashing where certified load security is required.
What capacities does the Grade 80 chain come in?
The Grade 80 chain covers 0.5 t to 63 t working load limit, in sizes from 4×12 mm to 45×135 mm, with minimum breaking loads up to 2,540 kN.
What surface treatments are available?
Hot-dip zinc, dacromet, metal-coated, black, oiled, or various other finishes are available on request to match your working environment.
What safety factor does it provide?
Every Grade 80 chain is rated with a 4-fold safety factor and tested to 2.5 times the proof load before delivery.
How do I select the right size?
Match the working load limit to your heaviest load plus a safety margin, then select the corresponding size and the surface treatment suited to your environment.
Tell us your capacity, lifting height, and working‑condition requirements — we'll confirm the correct model and send pricing.
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