Quality Standard

ASTM A519 Seamless Carbon and Alloy Steel Mechanical Tubing

JIS G3441 Alloy steel tubes for machine purposes

DIN 2391 Seamless Precision Steel Tubes

DIN 2448 SEAMLESS STEEL PIPES AND TUBES

BS 6323 SEAMLESS AND WELDED STEEL TUBES FOR AUTOMOBILEMECHANICAL AND GENERAL ENGINEER PURPOSE

EN10305 Steel tubes for precision applications Technicaldelivery conditions Seamless cold drawn tubes

EN 10297 Seamless circular steel tubes for mechanical andgeneral engineering purposes

Steel Grade

ASTM A519 1010-1045, 4130-4142, 5135 JIS G3441 SCM 415 TK, SCM418 TK, SCM 420 TK, SCM 430 TK, SCM 435 TK, SCM 440 TK JIS G3444STKM 11A, STKM 12, STKM 13, STKM 14, STKM 15, STKM 16, STKM 17,STKM 18 STKM 19, STKM 20 BS 6323 CFS 3, CFS 3Aa, CFS 4, CFS 5b, CFS6, CFS 7, CFS 8d, CFS 9, CFS 10, CFS 11

Size

Outer Diameter Hot finish 2" - 30", Cold drawn 0.875" - 18"

Wall Thickness Hot finish 0.250" – 4.00", Cold drawn 0.035" –0.875"

Length Random Length, Fixed Length, SRL, DRL

Heat treatment Annealed, Full Annealed, Bright annealed, ,Spheroidize annealed Normalized, Stress relieved, Cold finished,Quenched and Tempered

Delivery Condition BKS, NBK,BK ,BKW, GBK( A), NBK( N), BK(C)

Packing Plastic plugs in both ends, Hexagonalbundles of max 2,000kg with several steel strips, Two tags on eachbundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth withseveral steel strips

Test Chemical Component Analysis, MechanicalProperties (Ultimate tensile strength, Yield strength, Elongation),Technical Properties (Flattening Test, Flaring Test, Bending Test,Hardness Test, Blow Test, Impact Test etc), Exterior SizeInspection

42CrMo4 Steel Pipe