Usage: Applicable to the general structure, mechanical structure with seamless steel tubes and 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 strips

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