Hot-rolled seamless pipes rolled g/GOST 8732 size 57*4 - 325*8.

Hot-rolled seamless pipes rolled g/GOST 8732 dimensions 574 - 3258.
Notes:

1.

The pipe dimensions, given in parenthesis, when designing new equipment not apply.
2.

The weight of 1 m of pipe is calculated by the formula:
M = 0,02466 x S (DN - S),
where DN is the outer diameter, mm;
S - wall thickness, mm


The density of steel is assumed 7,850 g/CC

1.

Pipe outer diameter and wall thickness, marked with an asterisk apply to the legal relations on economic and scientific-technical cooperation.
2.

The length of the pipe shall be manufactured:
not gauge length in the range from 4 to 12.5 m;
length - not measured;
length multiple gauge is not measuring length with allowance for each cut 5 mm;
approximate length within the measuring length.


Notes:

1.

Upon agreement between the manufacturer and the consumer is permitted to manufacture pipe length, beyond that specified for the pipe length.
2.

For pipes with a wall thickness of more than 16 mm, the length of the measuring tube is determined by agreement between the manufacturer and the consumer.
3.

Pipe approximate length produce on demand of the consumer.
4.

Limit deviations of length pipe length and length, multiple gauge should not exceed +10 mm with a length up to 6 m; +15 mm with a length exceeding 6 m or with an external diameter exceeding 152 mm; ±500 mm - length approximate length.
5.
1. By agreement of the producer and the consumer, the pipes can be combined with extreme deviations, for example: on the outer diameter of the increased accuracy according to GOST 9567-75, and the wall thickness - standard accuracy, etc.
6.

Out-of-roundness and raznesennost pipes should not display the size of the pipes for tolerances on diameter and wall thickness.
7.

The curvature of any part of a pipe of 1 m length should not exceed 1.5 mm - for tubes with wall thickness up to 20 mm; 2,0 mm - for tubes with wall thickness more than 20 to 30 mm; 4.0 mm - for tubes with wall thickness above 30 mm
8.

On demand of the consumer of the pipe shall be supplied on the internal diameter and wall thickness, as well as on the outer and inner diameters and varying wall thickness.
Tolerances on inside diameter for pipe diameters 70-203 mm, wall 7-20 mm and the ratio of the diameter to the wall thickness equal to or less than 10, should not exceed the relevant limit deviations outside diameter specified in table 2.
For other pipe sizes maximum deviations of the inner diameter is set by agreement of the producer and the consumer.
9.

Technical requirements GOST 8731-87.

Category catalog Prom.ua: Steel pipe in Kiev