Zhejiang Gross Steel Tube Co., Ltd

ZG is invested by Zhejiang Jindun Holding Group Co., Ltd with an annual production of 250000 tons and a fixed asset of USD 200 million. As one of the largest manufacutures of seamless steel tubes&pipes in China or even throughout the world, ZG covers an area of 160, 000 square meters with a factory area of 130000 squre meters and has a workforce of more than 600 including over 200 professional technicians senior engineers, senior non-destructive testing staffs. ZG is competent in producing high-quality seamless pipes with diameter 3901200mm, wall thickness 16200mm and length 412 meters that are mainly used in energy fields of nuclear and thermal power stations, petroleum and petrochemical industry, high-pressure gas cylinder, military industry, mechanical sructure and so on. Our stainless seamless steel tubes are the advanced productions in China. Our main production series are listed as follows: 1. Pipes for Power Generation and Petrochemical Industry use. OD: up to 1200 mm WT: up to 200 mm Length: 412.5 m Typical Grade: ASTM/ASME A106B, A106C, P11�¯�¼ï¿½P12�¯�¼ï¿½P22�¯�¼ï¿½P91, EN WB36, P235GH, ST45.8, 10CrMo910 and so on 2. Line Pipes OD: up to 48 " WT: up to 4 " Application: onshore and offshore transmission of oil, gas, water and other fluids. Typical Grade: API 5L Grade B up to API 5L X80 (including nace) Pipe ends: plain or beveled ends 3. Seamless Pipes for High Pressure Cylinders series of size: 406; 426;457;508;559; 610; 660 and so on Typical Standard: ASTM A519, ASTM SA372, ISO11120 Typical grade: 4130X, 4140, 34CrMo4, 42CrMo4, 34Mn2V, 30CrMo and so on. Application: material for high or middle pressure gas cylinders 4. Stainless Pipes OD: up to 1050mm WT: up to 120mm Application: for the chemical industrial fields of oil, gas and coal, the thermal and nuclear pwer industry and the manufactural industry such as military equipment and ship-building Main standards: ASME/ASTM A312, ASME/ASTM A213, ASME/ASTM A789, ASME/ASTM A269, JIS G3459, DIN17458 Typical Grade: TP304H/L, TP316/H, TP347/H, TP321/H and so on. 5. Pipes for Mechanical Structure and Low Temperature use OD: 3501420mm WT: 20mm300mm Application: for mechanical parts such as hydraulic stanchion, hydraulic barrel and other large equipments�¢ï¿½ï¿½ parts. Standard: EN10210/EN10297/EN10216/DIN1629/ASTM A333/ASTM A519/ASTM A53/ASTM A106 and so on