JIS G3445 Stkm11a Precision Steel Automobile Tubes 

JIS G3445 Stkm11a Precision Steel Automobile Tubes Introduction: Material:STKM 11A, STKM12(A,B,C), STKM13(A,B,C), STKM 14(A,B,C)    Size: OD: 5mm~240mm WT: 0.5mm~100mm Length: 12m max   Type: Carbon   Surface: Antirust Oil   End protector: Plastic Pipe Cap   Tolerance: It can be controled within OD/Thickness +/-0.1mm   Application: Suitable for machinery, automobile, bicycle, furniture and other spare machinery carbon steel pipe Test: Tension Test, Flaring Test, Flange Test, Reverse Test, Hardness Test, Hydrostatic or Nondestructive Electric Test Key words: JIS G3445 Precision Steel Automobile Tubes Precision Automotive Tube Stkm11a steel tube Chemical Requirements: Mechanical properties：