Our factory produces seamless butt welded carbon steel pipe fittings, stainless steel pipe fittings,

(elbows, tees, reducers, heads, bends, pipe caps, stub end), flanges (flat welding flanges, butt welding

flanges, flange covers, blind flange), compensators, and industrial welded pipe fittings for forged high-pressure pipes.

PN1.0MPa
Nominal Diameter NPS	Connection dimension					Sealing face		Thickness of flange
	D	K	L	Threaded		d	f	c
				n	Threaded dimension
1/2	90	60	14	4	M12	41	2	14
3/4	95	65	14	4	M12	46	2	14
1	105	75	14	4	M12	56	2	16
1.1/4	115	85	14	4	M12	65	2	16
1.1/2	140	100	18	4	M16	76	2	18
2	150	110	18	4	M16	84	2	18
2.1/2	165	125	18	4	M16	99	2	20
3	185	145	18	4	M16	118	2	20
3.1/2	200	160	18	8	M16	132	2	20
4	220	180	18	8	M16	156	2	22
5	250	210	18	8	M16	184	2	22
6	285	240	22	8	M20	211	2	24
8	340	295	22	8	M20	266	2	24
10	395	350	22	12	M20	319	2	26
12	445	400	22	12	M20	370	2	26
14	505	460	22	16	M20	429	2	26
16	565	515	26	16	M24	480	2	28
18	615	565	26	20	M24	530	2	28
20	670	620	26	20	M24	582	2	28
24	780	725	30	30	M27	682	2	34

Factory

Testing Center

Our company's testing center has various experimental equipment, including Rockwell hardness testers,

metallographic microscopes, coordinate measuring machines, yield testing benches, bending testers,

tensile testers, high-density ultrasonic flaw detectors, light cutting microscopes, vertical optical meters,

and other professional equipment; The testing center currently has 15 professional testing personnel,

including 5 quality engineers and 2 quality chief engineers, all of whom have higher degrees.

HUNAN LIANGMING METAL MATERIAL CO.,LTD was founded in 2009,which is a professional manufacturer and exporter of scaffolding material,steel pipes and pipe fittings.Its headquarter located in Changsha city,Hunan province and production base located in Daqiuzhuang town,Jinghai District,Tianjin.

Our main products is scaffolding pipe, steel plank, coupler and ringlock system,We have 3 automatic production lines for steel plank ,3 automatic production lines for scaffolding pipe,5 automatic production lines for steel prop,and more than 80 pcs advanced equipment for cutting,drilling,welding,painting and package.Through the integration of the tow technology,our scaffolding took the lead in the realization of the whole pipeline operation mode,and part of the production equipment achieves intelligent.for now,our production capacity is about 200000 Tons,including steel prop,frame,scaffolding system,jack base,plank and other accessories.our products are exported to Asia,North America,Oceania and Europe.

Our scaffolding strictly implement the requirements of ISO 9001 quality management system,adhering to the implementation of quality strategy,leading the development of the industry "business philosophy,toprovide you withsatisfactory and reliable products. 

We always try our best to provide the best solution and the best service to our valuable clients efficiently.