Cold drawn steel pipe production process

- Oct 29, 2018-

Cold drawn steel pipe, cold rolled steel pipe unit is a complete set of equipment for producing pipes by cold rolling, cold drawing or cold rolling combined with cold drawing. It is a unit for deep processing of hot rolled pipe or welded pipe.

Different processing methods and corresponding auxiliary processes are selected according to the processing properties of the metal, the pipe size, the quality requirements, and the investment and benefits. The basic processes of cold-rolled cold drawn tubes are:

(1) Pipe material supply, the pipe material used is hot-rolled finished pipe or semi-finished pipe, extruded pipe and welded pipe;

(2) Preparation of pipe materials, including inspection, bundling, pickling, washing, rinsing, neutralization, drying, coating of lubricants, etc.;

(3) cold working (cold rolling or cold drawing);

(4) Finished product finishing includes heat treatment of finished products, straightening, sampling, cutting head and tail, inspection (manual inspection and various flaw detection), hydraulic testing, oiling, packaging, storage, etc. Different product finishing content is different.

The production characteristics of the cold-worked pipe unit are that the pipe material is usually subjected to multiple cold deformations and work hardening from the input to the finished product. Therefore, the whole production process is composed of a plurality of preparation processes and deformation processes, and has the characteristics of reciprocating cycle, and thus the number of processes The production cycle is long, the metal consumption is large, the production efficiency is low, and the general production scale is not large.


Product Description
Seamless steel pipe has hollow section, a large number of pipelines used to transport fluid, such as oil, natural gas, gas, water and some solid materials.
ASME(mm)
SCH40(mm)
21.3
2.77
26.7
2.87
33.4
3.38
42.2
3.56
48.3
3.68
Direction for product
使用说明
Preparation and inspection of tube billet heating and piercing pipe reheating (reduction) diameter heat treatment of finished pipe straightening finishing inspection (nondestructive, physical and chemical, laboratory inspection) into storage
  • Description for use

  • 使用效果描述

oil, natural gas, gas, water and some solid materials.
Detailed Images
Size Information
Size Chart of This Design
A
B(in)
ASME(mm)
SCH40
SCH80
SCH160
15
1/2
21.3
2.77
3.73
4.78
20
3/4
26.7
2.87
3.91
5.56
25
1
33.4
3.38
4.55
6.35
Packing&Shipping
Company Introduction

Cangzhou Steel Pipe Group (CSPG) Co., Ltd. is a large-sized, key metallurgic enterprise of Hebei Province in North China, whose history dates back to 1994. CSPG currently em/paces six member companies with products varying from SSAW, LSAW, ERW, seamless steel pipes to 3PE pipes, galvanized pipes, casing pipes, etc. A Joint-stock corporation, CSPG occupies an area of 600,000 square meters with a total asset of $530 million.



Specialized in the production of straight welded pipe spiral pipe galvanized pipe 3PE/3PP/FBE/TPEP internal and external epoxy powder internal and external epoxy resin cement mortar two cloth three oil buried pipeline IPN8710 non-toxic drinking water internal and external plastic coated lining plastic and other anti-corrosion pipe fittings for oil and gas pipeline water conservancy projects



Executive standard :DIN30670 DIN30678 CSA Z245 AFNOR nf49-710/711 NACE rp0394/0490 AWWAC 210/C213GB/T9711 API 5L ISO 3183Material: Q235B/Q355BGR A GR B x42-x80 l245-l555

 

Business scope: 21.3mm-3620mmLSAW submerged arc welded pipe 325-2020mmERW straight welded pipe 6mm-711mmSMLS seamless tube 10-1120mmSSAW spiral steel tube 219-3620mmDemand for quality suppliers and partners