© 2017 JSC "PTC-Ekaterinburg All rights reserved.

Site created by AVE Holding

Design by F.C.Projekt

Among tubular metal, implemented by JSC "PTC-Ekaterinburg" a wide range of electric welded pipes, belong to this group:
1.Pipes electric welded round;
2.Welded profile pipe (square, rectangular, oval);
3.Profiles steel bent closed welded (square and rectangular).

 

Electric-welded pipe - pipe produced by the method of electric welding, have one seam, parallel to the centerline.

The quality control is regulated, contains the following parameters:
• Outer diameter;
•Wall thickness;
•Length.

 

1. Pipe welded round
This group includes steel, electric-welded pipes with a diameter of:
•From 10 to 530mm GOST 10705-91
•From 478 to 1420mm according to GOST 10706-76

Assortment of pipe corresponds. GOST 10704-91


The length of the pipe manufacture:
•Random lengths from 2 to 12m;
•Standard length from 5 to 12m;
Pipe with a diameter greater than 426mm produce only random length
Pipe dimensional and multiple lengths manufactured in two accuracy classes according to length:
•Cut the ends and deburring;
•Without deburring (with the cutting in-line mill).


Pipes made from steel grades:
•t2sp, St2ps, St2kp, St4sp, St4ps, St4kp by GOST 380
•0, 10ps, 20, 35, 45, 08KP according to GOST 1050;
Depending on quality pipes are made of the following groups:
•A - with standard mechanical properties;
•B - with standard chemical composition;
•C - With standard mechanical properties and chemical composition;
•D - standard hydraulic test pressure.


Pipes produce thermally processed (throughout the volume of the tube or weld), hot reduced and without heat treatment.
On pipes with a diameter of 57mm and allowed more than one transverse seam.
Pipe diameter 820мм and over must have two longitudinal and one transverse seam.

 

2. Pipe electric-welded profile, square, rectangular, oval.
This group includes electric-welded profile pipes, manufactured according to.
GOST 13668-86
Assortment of electric-welded pipes corresponds to:
•square, GOST 8639-82
•rectangular - GOST 8645-68
• oval - GOST 8642-68
Electric-welded profile pipes manufactured outer dimensions from 10 to 100mm and wall thickness from 1.0 to 5mm length:
•random lengths - from 1.5 to 9M;
•gauge length - from 5 to 9M;
•length is a multiple dimensional - any multiplicity not exceeding the lower limit set for measuring of pipes.
Pipes made from steel grades:
•St2sp, St2ps, St2kp, St4sp, St4ps, St4kp by GOST 380;
•10, 10ps, 20, 35, 45, 08KP according to GOST 1050;
Depending on the purpose of the pipe must be manufactured of the following groups:
•A - with standard mechanical properties;
•B- With standard mechanical properties and chemical composition.

Pipes produce heat treated or without heat treatment.

 

3. Profiles steel bent closed welded (square and rectangular)
Profiles steel bent closed welded (square and rectangular) are made according to GOST 30245-2003 size from 80 to 300mm random, dimensional dimensional length in the range from 6 to 12m.
Limit deviations in height and width profile height(width)of the profile up to 100 mm - +1.5 mm;
•when the height (width) of the profile not exceeding 100 mm - + 2 mm.
Maximum deviations in thickness of the profile must not exceed:
•at a thickness of 2.0-3.5 mm +0,22;
•at a thickness of 3.5-3.9 mm - +0,24;
•at a thickness of 3.9-5.5 mm - +0,3/-0,5;
•at a thickness 5,5-7,5 mm - +0,25/-0,6;
•at a thickness of 7.5-10.0 mm - +0,3/-0,8;
•at a thickness of 10.0-12.0 mm - +0,3/-0,8.

Maximum deviations along the length of the profiles and multiple dimensional measuring length should not be more than