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

Quality Standard

DIN17175 1.7335 13CrMo44 A335-P12,A369-FP12, A213-T12 ALLOY STEEL PIPE

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 AUTOMOBILE MECHANICAL AND GENERAL ENGINEER PURPOSE

EN10305 Steel tubes for precision applications Technical delivery conditions Seamless cold drawn tubes

EN 10297 Seamless circular steel tubes for mechanical and general engineering purposes

Steel Grade

ASTM A519 1010-1045, 4130-4142, 5135

JIS G3441 SCM 415 TK, SCM 418 TK, SCM 420 TK, SCM 430 TK, SCM 435 TK, SCM 440 TK

JIS G3444 STKM 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, CFS 6, 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, Hexagonal bundles of max 2,000kg 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 10204/31B