The development of steel pipe production technology began with the rise of bicycle manufacturing industry, the development of oil in the early 19th century, the manufacture of ships, boilers and airplanes during the two world wars, the manufacture of thermal power boilers after the Second World War, the development of chemical industry and the drilling, production and transportation of oil and natural gas, all of which greatly promoted the variety, production and quality of steel pipe industry Development on. Steel pipe is not only used to transport fluid and powder solids, exchange heat energy, manufacture mechanical parts and containers, but also an economic steel. It can reduce the weight, save 20-40% metal and realize the factory mechanized construction. Making highway bridges with steel pipes can not only save steel and simplify construction, but also greatly reduce the area of protective coating and save investment and maintenance costs. According to the production method, the steel pipe can be divided into two categories: seamless steel pipe and seamed steel pipe. The seamed steel pipe is called straight seam steel pipe for short. The steel pipe can be divided into carbon steel pipe, alloy pipe and stainless steel pipe according to the material (i.e. steel type). Carbon steel pipe can be divided into ordinary carbon steel pipe and high-quality carbon steel pipe. Tubo de aço liga can be divided into: low alloy pipe, alloy structure pipe, high alloy pipe, high strength pipe. Bearing pipe, heat and acid resistant stainless pipe, precision alloy (such as kovar alloy) pipe and high temperature alloy pipe, etc. Seamless titanium pipes are available with outside diameter ranges of between 0.5mm to 330mm. Titanium welded pipes are available in outside diameter ranges of between 100mm to 5,000mm and we supplied up to lengths of 15m.

Size range:

Seamless from DN15 to DN600 1 / 2 ″ ~ 24 ″;

Seamed from DN15 to DN1200 1 / 2 ″ ~ 48 ″

Manufacturing standard:

GB / T14976-2002, GB / T14975-2002

American standards: ASTM A 312, ASTM A 213, ASTM A 269, ASTM A 790, ASTM B338, B861, B862, etc

Japanese standard: JIS G3463, JIS G3459, DIN 17 861

German standard: DIN 17456, DIN 17458

European standard: EN10216-5

Russian standard: GOST 9941-80, GOST 9941-81

Pressure rating: Sch5s-sch160; XXS

Materials:

Stainless steel:
OCr18Ni9, 0Cr18Ni9Ti, 1Cr18Ni9Ti; 304, 304L, 316, 316L, 316Ti, 317, 317L, 321, 321h; 1.4301, 1.4306, 1.4401, 1.4435, 1.4571, 1.4436, 1.4438, 1.4541; 08X18H10 (0x18h10), 03x18h11 (000x18h11), 03x17h14m2 (000x17h13m2); 08X18H10T (0x18h10t), etc

Duplex Stainless Steel:
ASTM a815-s31803, S32205, S32750, s32760

Super stainless steel:
ASTM 904L, b366-n08904, a403-wp317, 317L, 254SMO (UNS s31254)

Pure titanium: Titanium Grade 1, Titanium Grade 2, Titanium Grade 3, Titanium Grade 4

Titanium alloy: Titanium alloy grade 5, Titanium alloy grade 7, Titanium alloy grade 9, Titanium alloy grade 12, Titanium alloy grade 23