CORROSION-RESISTANT SHEET STEEL

THIN PLATE

It is produced according to GOST 5582-75 by thickness from 1,5-3,9mm(hot-rolled) and from 0,7 thickness to 3,9mm (cold-rolled).
The assortment is subject to GOST 19903-74 - for hot-rolled steel and to GOST 19904-74 - for cold-rolled steel.
The chemical composition is determined by GOST 5632-72.
The mechanical composition is determined by GOST 5582-75.
The given type of rolled products is produced from steel grade:
2013, 3013, 4013, 1213, 14172, 0813, 0817, 08181, 1525, 1528, 121810, 0628, and etc.
On a condition of the material and quality of the surface rolled-products are subdivided into groups:
• H1 – cold-rolled and hard-drawn steel (rigid. without a use of negative hardening); 1 cold-rolled and half-hard-drawn steel; 2, 3, 4 cold-rolled and heat-treated (mild), pickled or after light hardening; 4 - cold-rolled and heat-treated (mild).
On rolling precision rolled-product is subdivided on:

A - the extended precision;

B single precision.
By the form edges:

O - with cut;

NO - with not cut.
On out of the evenness of sheets with a temporary resistance to the breaking strength of 690 N/mm2 and less rolled-products are subdivide on:
- especially high evenness;
- high evenness;
- improved evenness;
- normal evenness.
Quality of a surface of thin-sheet rolled-products has to conform to requirements of the GOST 5582-75

THICK PLATE

  .jpegIt is produced according to GOST 7350-77 by thickness from 4 50 mm (hot-rolled) and thickness from 4 5 mm (cold-rolled).

The assortment is subject to GOST 19903-74 - for hot-rolled steel and to GOST 19904-74 - for cold-rolled steel.
The given type of rolled products is produced from steel grade:
2013, 12X13, 14172, 0813, 0817, 08181, 1525, 121810, 0628, 15XM, etc.
The chemical composition is determined by GOST 5632-72 (except grade 15XM, its chemical composition is defined by GOST 20072-74 heat-resisting steel).
The mechanical composition is determined by GOST 7350-77.

On a condition of the material and quality of a surface rolled products are subdivided into groups:
H1 cold-rolled and hard-drawn steel (rigid. without a use of negative hardening);
1 cold-rolled and half-hard-drawn steel;

2, 3, 4 cold-rolled and heat-treated (mild), pickled or after light hardening;
4 - cold-rolled and heat-treated (mild).
2, 3, 4, 5, - hot-rolled and heat-treated, pickled or after light hardening;
M5 hot-rolled and heat-treated, non-pickled;
5 hot-rolled, non-heat-treated and non-pickled.
On rolling precision rolled-product is subdivided on:
A - the extended precision;

B single precision.
By the form edges:
O- with cut;
HO - with not cut.
On out of the evenness of sheets with a temporary resistance to breaking strength of 690 N/mm2 and less rolled-products are subdivide on:
- especially high evenness;
- high evenness;
- improved evenness;
- normal evenness.
Quality of a surface of thin-sheet rolled-products has to conform to requirements of the GOST 7350-77
.

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