High Precision Cold Rolled Seamless Tube Used for Automotive
Size Range: O.D 16-245mm, WT 1-32mm
Executive Standard:
GB/T3639, Cold-drawn or cold-rolled precision seamless steel
DIN2391, Seamless precision steel tubes
DIN2393, Welded Precision Steel Tubes
EN10305-1, Steel tubes for precision applications Part 1: Seamless cold drawn tubes
EN10305-2, Cold drawn steel tubes for precision applications Part 2: Welded cold drawn tubes
ASTM A519, Seamless Carbon and Alloy Steel Mechanical Tubing
ASTM A513, Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing
JIS G3445, Carbon Steel Pipe For Mechanical Purpose
JIS G4051, Carbon Steels for Machine Structural Use
According to customer’s specific requirements
Steel Grade:
10#, 20#, 35#, 45#, 55#, Q355B, 25Mn, 16MnCr5, 20MnCr5, 30CrMo, 35CrMo, 42CrMo, 20Cr, 40Cr, 20CrNiMo ; ST37, ST45, ST52, 34CrMo4, 42CrMo4 ; E235, E255, E355 ; 1010, 1020, 1026, 1035, 1045, 1050, 4130, 4140, 8620 ; STKM 11A, STKM 12B, STKM 13C, STKM 14B ; S10C, S20C, S35C, S45C and etc.
Delivery Condition:
Cold drawn/hard (+C) (BK)
Cold drawn/soft (+LC) (BKW)
Cold drawn and stress relieved (+SR) (BKS)
Annealed (+A) (GBK)
Normalized (+N) (NBK)
Quenched and Tempered (QT)
Advantages:
Optimized mechanical properties enabling easy bending, flaring, flattening and other processing
Good surface roughness suitable for electrophoresis, coating, galvanization and chroming processing
High precision
Excellent microstructure
Applications:
