We are specialized in manufacturing and exporting seamless steel tubes and pipes. Seamless pipe, structure pipe, structure tube, structure steel pipe, structure seamless pipe
Structure seamless tube
The products include: Structure pipes, boiler pipes, pipes for pipelines, petroleum cracking pipe, tubing and casing, tube for geological drilling, fluid pipes, tube for gas cylinder and automobile, hydraulic, drill pipe. Made according to GB ASTM, DIN, BS, EN, JIS Standard with good quality.
The pipes' OD: 57-219mm, WT: 5-40mm

The Steel Grade: 10, 20, Q295, Q345, 45, 45Mn2, 20Mn2, 10, 20, 20G, 20MnG, 25MnG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, 12Cr2MoWVTiB, 10Cr9Mo
10, 20, 20G, 20MnG, 25MnG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, 12Cr2MoWVTiB, 10Cr9Mo1VNb, SA210A1, SA210C, SA213 T11, SA213 T12, SA213 T22, SA213 T23, SA213 T91, SA213, T92, ST45.8/, 15Mo3, 13CrMo44, 10CrMo910 10, 20, 15CrMo, 1Cr2Mo, 1Cr5Mo, 20, 35, 40, 27SiMn ect
Seamless Steel Tubes and Pipes for Structures
Standards:
GB/ T 8162  ASTM A,  53ASME SA5
Seamless steel tubes and Pipes for liquid service
Standards:
GB/T 1863                   Chinese National Standard
ASTM A 53M                  Standard of American Society for Testing & Materials
ASTM A 106                  Standard of American Society for Testing & Materials
Seamless Steel Tubes and Pipes  for Boiler  
Standards:
GB/T 3087                   Chinese National Standard
GB/T 5310                   Chinese National Standard                
ASME SA-192                 American Society of Mechanical Engineers
ASME SA-106                 American Society of Mechanical Engineers  
DIN 7175                    Deutsche Industrie Normen                
JIS G 3461                  Japanese Industrial Stand
Seamless Steel Tubes for Line Pipe
Standard:
API SPEC 5L¡ª¡ªAPI Standard
GB/T8163
Seamless steel tube and pipes for gas cylinder
Standard:
GB 18248
ASTM A519                
Seamless steel tubes and pipes for ship
Standard:
GB/T 5312
CCS,DNV,LR.GL,ABS,BV,RINA,NK                
Seamless steel tube and pipes for automobile
Standard:
YB/T 5035          Standard of China Metallurgical Industry
GB/T 8162          China National Standard              
Seamless steel tube and pipes for Hydraulic Pillar Service
Standard:
GB/T 17396         China National Standard              
SAE J524, AMS 5050K

Dimension, Mechanical properties, Chemical composition:
Refer to The corresponding standard or please contact us.

Packing:
Bundles, seaworthy wooden cases
With or without edge protector, steel hoop and seals, or as per customers' requirements

Please dont hesitate to contact us, your inquiry will be highly appreciated and treated. And OEM are welcome.