Infrastruktur
Circular hollow sections (CHS), square hollow sections (SHS), and rectangular hollow sections (RHS) have high strength and strong earthquake resistance. They are often used in columns, beams, and columns of building structures such as tunnels, airports, bridges, and platforms. They can withstand enormous loads and are indispensable for buildings with large spans and spaces.
The primary standards and materials are:
EN 10219-1/EN 10210-1 S235JRH, S275J0H/J2H, S355J0H/J2H
ASTM A500 Grade A/B/C/D; ASTM A501 Grade A/B
JIS G3444 STK400, STK490; JIS G3466 STKR400, STKR490
Öl und Gas
Line pipes, tubing, casing, drill pipes, etc., have high strength, good anti-collapse performance, low-temperature resistance, high-pressure resistance, corrosion resistance, cold resistance, etc., and are essential materials for land and offshore oil and gas exploration and transportation industries.
The standards and materials of pipelines used for oil and natural gas transportation are:
API 5L 46th Edition PSL 1/PSL 2 Grade B/X42/X46/X52/X56/X60/X65/X70/X80/X90/X100/X120
ISO 3183 PSL 1/PSL 2 Grade L245/L290/L320/L360/L390/L415/L450/L485/L555/L625/L690/L830
The standards and materials of oil casing used in oil and gas wells are:
API 5CT 10th Edition Grade H40/J55/K55/N80/N80-1/N80Q/L80-1/L80-9Cr/L80-13Cr/C90/T95/P110/Q125
Drill pipe standards and materials used for oil and gas wells are:
API 5DP E75, X95, G105, S135