Usage: Applicable to transport liquid, gas, oil etc.

Quality Standard

GB/T ***3: Seamless steel tubes for liquid service
GB ***7: Seamless Steel Tubes for Low and Medium Pressure
GB ***0: Seamless steel tubes and pipes for high pressure boiler
ASTM A**6: Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service
ASTM A**9: Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and
Condenser Tubes
ASTM A**2: Standard Specification for Seamless Carbon Steel Boiler Tubes for High-Pressure Service
ASTM A**3: Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service
ASTM A**5: Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
JIS G***2: Carbon Steel Pipes for Ordinary Piping
JIS G***4: Carbon Steel Pipes for Pressure Service
BS ***9: STEEL BOILER AND SUPERHEATER TUBES
DIN ***9: SEAMLESS CIRCULAR TUBES OF NON ALLOY STEELS WITH SPECIAL QUALITY
REQUIREMENTS
DIN ****5: SEAMLESS STEEL TUBES FOR ELEVATED TEMPERATURES
API 5L: Line Pipe

Steel Grade

GB/T ***3: *0#, *0#, *5#, *5#, *6MN(Q**5B)
GB ***7: *0#, *0#, *5#, *5#, *6MN(Q**5B)
GB ***0: *0G, *2Cr1MoV, *2Cr1MoVG, *2CrMoG
ASTM A**6: Gr A, Gr B, Gr C
ASTM A**3: Gr 1, Gr 3, Gr 6, Gr 8
ASTM A**5: P1, P2, P5, P9, P*1, P*2, P*2
JIS G***2: SGP
JIS G***5: STS **0, STS **0, STS **0
BS***9: HFS**0, CFS**0
DIN ***9: St *7.0, St *4.0, St *2.0
DIN ****5: St*5.8, St*5.8, *7Mn4, *9Mn5, *5Mo3, *3CrMo**0, *0CrMo**0, *4MoV*3, X*0CrMoV**1
API 5L: A B X*2,X*6, X*2, X*0, X*5, X*0, X*0

Size
Outer Diameter:Hot finish: 2" - *0", Cold drawn: 0.**5" - *8"
Wall Thickness:Hot finish: 0.**0" - 4.*0", Cold drawn: 0.**5" - 0.**5"
Length: Random Length, Fixed Length, SRL,DRL

Heat treatment:Annealed, Normalized
Surface:Zinc coating, black phosphated, oiled
Packing:Plastic plugs in both ends, Hexagonal bundles of max. 2,**0kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strip

Test:Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield
strength, Elongation), Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test,
Blow Test, Impact Test etc), Exterior Size Inspection, Nondestructive Test (Ultrasonic flaw detector, Eddy current flaw detector), Hydrostatic Test.,
Mill Test Certificate:EN ****4/3.1B

Thank you

Threeway Steel