Limestone Quarry Plant

One of the Top 500 enterprises in China foreign trade

QCCO was approved as a member of “China Association for Contracting Projects Abroad “and granted a membership certificate on Sep 28,2005; “Credibility Rating AAA certificate in Foreign Trade” was granted to QCCO by China Shippers’ Association


Carbon Seamless Steel Piping

1 Carbon Seamless Steel Piping

2 Standard:ASME B36.10M-1996 
3 Grade:ASTM A106/A53GRB 
4 Usage:water transport 
5 Spec:1/4":-48"

Carbon Seamless Steel Piping

Carbon Seamless Steel Piping/Seamless Steel Piping/Seamless Pipes

1 general used seamless steel Piping ASTM A53 GB.R,steel:SA53B,

SIZE: 1/4"-28",13.7-711.2mm

2 high pressure used boiler carbon steel  Piping ASTM A106 GB.R ,Steel:SA106B,

SIZE: 1/4"-28",13.7-711.2mm

3 Carbon steel seamless Piping 20#steel same as ASTM A106/A53/API 5L GB.R ,Steel:B,SIZE:1/4"-24",13.7-610mm

4 -40degree-101degree low temperature ASTM A333,Steel:GR.A.GR.6,GR.7,GR.3,low temperature concussion test can offer


5 DIN 2448/1629 seamless steel Piping  ,steel:st37,st44 st52


SIZE: 1/4"-28",13.7-711.2mm

6 refractory steel Piping  DIN 17175-1979

Steel:st35.8-st458/I,st35.8-st45.8/III,Alloy steel;15Mo3,13CrMo44,10CrMo910,

size:1/4"-28"SCH30,SCH40,SCH160 SCHXXS,13.7-610mm

7 Structure used seamless steel Piping GB/T8162-1999,Steel:10# 20# 35# 45#,16Mn(Q345)

SIZE: 6-720*1-70mm

8 liquid teansport carbon steel seamless Piping GB/T8163-1999.Steel;10# 20# 16Mn(Q345)

SIZE: 6-720*1-70mm

9 Low or Medium pressure boiler seamless pipe GB5310-1995,steel:10# 203

SIZE: 6-720*1-70mm

10 High pressure boiler seamless pipe GB5310-1995 ,steel:20G size:6-720*1-70mm

11 DIN 2391 hydraulic pressure seamless steelpipe (chinese standard GB 3639-83),WT:1-10MM,CARBON Steel pipe fittings

We also can make very big size pipe fittings for you


Carbon Seamless Industry Steel Piping


Carbon Steel pipe


1). Standard:API SPEC 5L,ASTM A106, DIN…


2). Grade: 10#,20#,45#,A53(A,B),A106(B,C)…


3). Executive Standard: API SPEC 5L,API SPEC 5CT,ASTM A53,ASTM A106,DIN 2448,DIN 2440,EN 10217,EN 10219,GB/8162,GB/T8163,GB/T3087 etc.


4). O.D.: 21.3mm-610mm

5). W.T.:1.5mm-80mm

6). Length: 5.8m-12m,or according to the clients’ request


7). Technics:  Hot rolled and cold drawn


8). Usage: widely used in petroleum, Oil, natural gas, shipbuilding, chemical industry, water conservancy, fire fighting, steel structure, building, etc.or as the clients' requirement


9). End: Bevelled end or plain end


10). Marking:Size , standard, and heat number ,or marking as customers' required


11). Painting: Painting black coating , or as per the clients' request


12).Package: Packing in bundles, caps at both ends ,or as per the clients' request


13)Inner packing:


2. Internal and external oiled  

3.External varnished with black lacquer if required 

4.If required tubes can be delivered with plastic plugs    


14).Price: very reasonable price


15).Quanlity:High quanlity.



Pipe types

Pipe size mm



Hot rolled 
















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