St52 Oiled Cold Drawn Seamless Steel Tube For Gas Cylinder

St52 Hydraulic Steel Pipe Gas Cylinder Honed Tube

Manufacture Method: Cold drawn, hot rolled+deep hole bored
Gas Cylinder Honed Tube
Certification: ISO9001, SGS,
St52 Honed Tube
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.

Product Pictures:

Company Introduction:

Packaging and Delivery:

FAQ:

Q: Are you trading company or manufacturer?

A: We are a professional steel pipes materials manufacturer.

Q: How long is your delivery time?

A: Generally it takes 7-14 days if the goods are in stock or 30-60 days if there is no stock, this mainly depends on quantity.

Q: Do you provide free sampleas?

A: Yes, we could offer the sample for free charge but need pay the cost of freight.

Q: What is your terms of payment?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us.