Hydraulic pressure Cylinder Pipe

Hot rolled seamless steel tubes for the manufacture of cylinders and columns for hydraulic supports and pillars in coal mines

Application Areas:

Back

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Market price

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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）

Quantity

Stock:

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