G80 black chain US standard chains

we use special material combined with close tolerance machining to ensure all the chains fitted properly and with great strength. We manufacture tram chains, round link mining chain,padless connector specifications,twin outboard shackles, Bl-lock connectors for mining chain,bucket clamps, standard fabricated sprockets dimensions.The main features are high tensile strength,high fatigue strength, long wear life.

1) Grade: G80, G70, G60, G43 lifting chain

2) Surface treatment: Self color, black oxide, electro galvanized, hot dip galvanized, black painted etc.

3) Material: 20Mn2, 25Mnv, 23MnNiCrMo54, Q235 (high strength chains for machines)

4) Standard: National Standard (GB/T20947-2007), International Standard (ISO3077-2001), American Standard (NACM96, ASTM80), European Standard (EN818-2, EN818-7), AS/NZS Standard

Technical Parameter of Lifting Chain (GB/T20947-2007 and EN818-2 Standard):

ASTM80 STANDARD LINK CHAIN
1.PROOF COIL CHAIN ASTM80(G30)
NOMINAL		WORKING LOAD LIMIT(MAX)		PROOF LOAD(MIN)		MIN.BREAKING LOAD		WEIGHT PER 100'		INSIDE LENGTH(MIN)		INSIDE WIDTH(MIN)
inch	mm	kg	lb	kn	lb	kn	lb	kg	lb	mm	inch	mm	inch
1/8	4	190	420	3.78	850	7.56	1700	8.8	19	22.6	0.89	7.4	0.29
3/16	5.5	360	800	7.11	1600	14.2	3200	18.3	40	24.1	0.95	10.2	0.40
1/4	7.1	600	1330	11.8	2650	23.6	5300	32.7	72	25.4	1.00	12.7	0.50
5/16	8.7	910	2000	17.8	4000	35.6	8000	48	106	27.9	1.10	12.7	0.50
3/8	10.3	1270	2800	24.9	5600	49.8	11200	70.3	155	31.2	1.23	15.7	0.62
1/2	13.5	2190	4800	42.9	9650	85.8	19300	123	271	38.9	1.53	20.3	0.80
5/8	16.7	3350	7400	65.8	14800	131.6	29600	184	405	48.3	1.90	25.4	1.00
3/4	19.8	4700	10400	92.5	20800	185	41600	264	582	54.6	2.15	28.4	1.12
7/8	23	6350	14000	124.5	28000	249	56000	368	811	63.5	2.50	34.8	1.37
1	26.5	8400	18600	165.4	37200	330.8	74400	474	1045	69.9	2.75	38.1	1.50
2.HIGH TEST CHAIN ASTM80(G43)
NOMINAL		WORKING LOAD LIMIT(MAX)		PROOF LOAD(MIN)		MIN.BREAKING LOAD		WEIGHT PER 100'		INSIDE LENGTH(MIN)		INSIDE WIDTH(MIN)
inch	mm	kg	lb	kn	lb	kn	lb	kg	lb	mm	inch	mm	inch
1/4	7.1	1180	2600	19.1	4300	34.5	7750	36.3	80	21.8	0.86	10.2	0.40
5/16	8.7	1770	3900	28.4	6400	51.6	11600	50.4	111	26.7	1.05	12.2	0.48
3/8	10.3	2450	5400	39.6	8900	72	16200	72.6	160	30.3	1.19	14.7	0.58
1/2	13.5	4170	9200	68	15300	122.7	27600	128.6	284	36	1.43	19.1	0.75
3.TRANSPORT CHAIN ASTM80(G70)
NOMINAL		WORKING LOAD LIMIT(MAX)		PROOF LOAD(MIN)		MIN.BREAKING LOAD		WEIGHT PER 100'		INSIDE LENGTH(MIN)		INSIDE WIDTH(MIN)
inch	mm	kg	lb	kn	lb	kn	lb	kg	lb	mm	inch	mm	inch
1/4	7.1	1430	3150	27.8	6300	56	12600	34	75	21.8	0.86	10.2	0.40
5/16	8.7	2130	4700	41.8	9400	83.6	18800	50.4	111	26.7	1.05	12.2	0.48
3/8	10.3	2990	6600	58.7	13200	117.4	26400	71	156	30.2	1.19	14.7	0.58

Packaging & Shipping

Plywood case,woven bag ,steel drum , ton bag /pallet

Our Services

1). Good quality

We believe quality is the base of long-time business cooperation. so we have strictly quality control system to make sure our goods matching customer's standard. All the products will be strictly inspected before by SGS team.

2). Quick response

We think quick response to your question and all requirement is very very important for your business.

3). Competitive price

We have our own factory and long-term cooperating suppliers, that's why we can give the most competitive prices.