TORICH Diameter 46mm 38mm AISI 1020 1010 4130 34CrMo4 DIN St35.8 St52 Seamless Carbon Hydraulic Steel Pipe Cylinder Honed Tube

TORICH Diameter 46mm 38mm AISI 1020 1010 4130 34CrMo4 DIN St35.8 St52 Seamless Carbon Hydraulic Steel Pipe Cylinder Honed Tube

Manufacture Method: 

Cold drawn, hot rolled+deep hole bored

Certification: 

ISO9001, SGS, 

Material: 

Carbon steel,alloy steel, stainless steel

Standard&Grade: 

DIN2391-2 ST52,EN10305-1 E355,C45E,25CrMo4,42CrMo4, CK45,E410, E470,ASTM A519 SAE1020,SAE1026,SAE1045,SAE1518,SAE1541, SAE4130,SAE4140,SAE4145,SAE4340,etc.

Size Range:

ID of 300mm max for cold drawing, 

ID of 500mm for deep hole boring

ID Tolerance:

ISO H8

End finish:

Plain ends with square cuts,free of burrs

Bore Roughness:

Ra0.30um max for honed tubes, Ra0.25um Max for Skived&roller burnished tubes

End finish:
Plain ends with square cuts,free of burrs

Usage:
Hydraulic cylinder, Pneumatic Cylinder

Product Feature:

1.High precision (can cut the costs of machining) .
2.Excellent surface finish
3.Good mechanical performance (Aneal ,Bright Anealing,QT heatment on steel tubes to reach customers' Mechanical requsts. )

1.+C /BK  

No heat treatment after final cold drawing process.

2.+LC/BKW

After the final heat treatment there's a suitable drawing pass.

3.+SA/BKS

After the final cold drawing process there's a stress relief heat treatment in controlled atmosphere.

4.+A/GBK

After the cold drawing process the tubes are annealed in a controlled atmosphere.

5.+N/NBK

After the final cold drawing operation the tubes are normalized in a controlled atmosphere.