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.

Nominal Diameter NPS	Outside Diameterat Bevel		Lenght①	Ultimate wall thickness when the length is E	Lenght②
	Ⅰ	Ⅱ	E		E1
1/2	21.3	18	25	4.57	25
3/4	26.9	25	25	3.81	25
1	33.7	32	38	4.57	38
1.1/4	42.4	38	38	4.83	38
1.1/2	48.3	45	38	5.08	38
2	60.3	57	38	5.59	44
2.1/2	73	76	38	7.11	51
3	88.9	89	51	7.62	64
3.1/2	101.6		64	8.13	76
4	114.3	108	64	8.64	76
5	141.3	133	76	9.65	89
6	168.3	159	89	10.92	102
8	219.3	219	102	12.7	127
10	273	237	127	12.7	152
12	323.9	325	152	12.7	178
14	355.6	377	165	12.7	191
16	406.4	426	178	12.7	203
18	457	480	203	12.7	229
20	508	530	229	12.7	254
22	559		254	12.7	254
24	610	630	267	12.7	305

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.