Description

Quality Standard: 
API 5L Standard Specification for Seamless Line Pipe or Seamless Pipe Line
ASTM A *3 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
ASTM A**9 Seamless Carbon and Alloy Steel Mechanical Tubing 
ASTM A**6 Seamless Carbon Steel Pipes for oil pipeline and gas pipeline transportation 
GB/T***2 Seamless Steel Tubes for Structural Purposes
JIS G***1 Alloy steel tubes for machine purposes 
JIS G***4 Carbon steel pipes for general structural purposes 
JIS G***5 Carbon steel tubes for machine structural purposes 
DIN ***1 Seamless Precision Steel Tubes 
EN****5 Steel tubes for precision applications. Technical delivery conditions. Seamless cold drawn tubes
EN ****7 Hot rolled seamless steel tubes with an application in the mechanical and general engineering
EN ****0:Seamless structural steel pipes

Steel Grade: 
API 5L: Grade A, Grade B, X*2, X*6, X*2, X*6, X*0, X*5, X*0, X*0
ASTM A *3: Grade A, Grade B, Grade C, Type F, Type E
ASTM A**9: ********5, ********2, ***5
GB/T***2: *0, *0, *5, *5, *6Mn, *2C rMo, *5CrMo, *2C rl MoV
JIS G***1: SCM **5 TK, SCM **8 TK, SCM **0 TK, SCM **0 TK, SCM **5 TK, SCM **0 TK 
JIS G***4: STKM *1A, STKM *2, STKM *3, STKM *4, STKM *5, STKM *6, STKM *7, STKM *8
STKM *9, STKM *0
DIN ***1: St*0Si, St*0A1, St*5, St*5, St*2
EN****5: E**5, E**5 
EN ****7: E**5K2, E**0, E**0J2, E**0K2 
EN ****0: S**5JRH; S**5J0H, S**5J2H; S**5J0H, S**5J2H; S**5NH, S**5NH; S**5NLH, S**5NLH

Size and Specification of Seamless Pipes 
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: Bright annealed, , Spheroidize annealed
Normalized, Stress relieved, Cold finished, Quenched and Tempered
Delivery Condition ï¼š BKS, NBK,BK ,BKW, GBK(+A), NBK(+N), BK(+C)
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.
Mill Test Certificate: EN ****4/3.1B