Difference in appearance
1, the main features of seamless steel pipe is no welding seam, can withstand greater pressure. The product can be very rough cast or cold dial.
2. Precise steel pipe is a product that has emerged in recent years. It mainly has strict tolerances and roughness on the inner hole and outer wall dimensions.
Process difference
The production process of precision steel pipes is the same as that of ordinary seamless pipes, and it is the final pickling and cold rolling process.
Precision steel pipe process
Billet--Inspection--Peeling--Inspection--Heating--Punch--Pickling and passivation--Treating--Lubrication and air-drying--Cold rolling--Degreasing--Cutting--Examination--Identification-- -Product packaging
1, the main features of seamless steel pipe is no welding seam, can withstand greater pressure. The product can be very rough cast or cold dial.
2. Precise steel pipe is a product that has emerged in recent years. It mainly has strict tolerances and roughness on the inner hole and outer wall dimensions.
Process difference
The production process of precision steel pipes is the same as that of ordinary seamless pipes, and it is the final pickling and cold rolling process.
Precision steel pipe process
Billet--Inspection--Peeling--Inspection--Heating--Punch--Pickling and passivation--Treating--Lubrication and air-drying--Cold rolling--Degreasing--Cutting--Examination--Identification-- -Product packaging
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