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Hydraulic pressure Cylinder Pipe
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1000

Hydraulic pressure Cylinder Pipe

Hot rolled seamless steel tubes for the manufacture of cylinders and columns for hydraulic supports and pillars in coal mines
National Service Hotline:+86-0510-86160120
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Number of views:
1000
Product serial number
Specification Range:
∮60-660×7-30mm
Use:
Hot rolled seamless steel tubes for the manufacture of cylinders and columns for hydraulic supports and pillars in coal mines
Main Material:

GB/T17396(20、45、27SiMn)

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Stock:
0
Product description
Parameters

● Standard

GB/T17396-2009

● Uses

Used in the manufacture of mechanical structures, hydraulic equipment, automotive parts

● Delivery status

Delivery status Code Description

Cold worked / hard

BK

No heat treatment after final cold working, so that the tube can be deformed only to a small extent

Cold processing/ soft BKW

Cold working with small deformation after final heat treatment, limited cold deformation is allowed for tube end machining(e.g., bending, flaring)

After cold working
Stress relief annealing
BKS

Final cold working followed by annealing below Ac 1 to eliminate cold working stresses

Annealing

GBK

After final cold working, the tube is fully annealed under protective atmosphere

Normalizing NBK

After the final cold working, the tube is normalized under protective atmosphere

 

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