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Top Manufacturer STKM 11A Precision Gas Cylinder Using Steel Pipe
Dec 23, 2016

Product Description

1.Product Name: Top Manufacturer STKM 11A Precision Gas Cylinder Using Steel Pipe
2.Outer Diameter: 30-250mm
3.Wall Thickness: 2-30mm
4.Material Grade: 20# 45# 16Mn Q345 25Mn 27SiMn E355 ST52 STKM11A STKM13A STKM13C
5.Package: Standard export packing or as client’s request
6.Delivery Condition: BK/BKW/BKS/GBK/NBK
7.Delivery Time: Within 20-30 days after receiving payment or as client’s request
8.Trade Terms: FOB Yantai, Qingdao, or as client’s request
9.Payment Terms: T/T or L/C or as client’s request
10.Supply Ability: 500 metric tons/per month
11.Origin: China
12.Application: widely used for hydraulic cylinder, engineering machinery, textile machinery, printing machinery, oil drilling and other field.

Product Name

Top Manufacturer STKM 11A Precision Gas Cylinder Using Steel Pipe


carbon steel

Out Diameter


Wall Thickness



10# 20# 45# 16Mn 25Mn 27SiMn E355 ST52 ST45 STKM11A STKM13A




DIN2391 EN10305 ASTM A519


hydraulic cylinder, textile machinery, heavy machinery, oil drilling

Our Main Products

1.Seamless steel tube
Widely used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM11A STKM-13CT ST52 CK45 E355 and AISI 1020. We can also offer as customized seamless steel tube.
2.cold drawn steel tube/cold rolled steel pipe                                
Grade: 20#  45# Q345 6Mn  25Mn  27SiMn  E355  ST52 STKM11A STKM13A STKM13C
Standard: GB/T8713  GB/T3639  DIN2391  EN10305  ASTMA519
Range: 30-300mm
Length: 11m(max)
The cold process can change the thickness of tube to meet client's request and offer better mechanical property.
3. Honed steel tube&SRB steel pipe
ID Tolerance: H8  H9 or as client's request
ID Roughness: RA0.4micron(max)
Length: 6m(max)
Inner roughness: Ra0.2-0.8um
Straightness: 1:1000 or customized

This process can improve the roughness of the inner tube to 0.2-0.8um and make inside tube more smooth which can be used for cylinder directly.

Any need, just feel free to contact us.