Key parameters of sheet hire
Sheet hire is produced according to GOST 16523-97 of steel of brands:
- 08kp, 08ps, 08, 10kp, 10ps, 10, 15kp, 15ps, 15, 20kp, 20ps, 20, 25, 30, 35, 40, 45, 50 - carbonaceous qualitative
- St1, St2kp, St2ps, St2sp, St3kp, St3ps, St3sp, St4kp, St4ps, St4sp, St5ps, St5sp - carbonaceous ordinary quality.
On a way of production sheet hire is subdivided
- hot-rolled sheet hire
- holodnokatany sheet hire
By types of production sheet hire is subdivided:
- sheet hire in sheets
- sheet hire in rolls
According to the normalized characteristics sheet hire is subdivided into categories: 1,2,3,4,5,6.
On the minimum value of temporary resistance (V) sheet hire is subdivided into groups of durability:
K260B, K270B, OK300B, K310B, K330B, K350B, K360OB, KOK390B, OK400B, K490B
, here OK - designation of sheet hire from steel of ordinary quality, To - designation of sheet hire from steel qualitative, 260 490 - designation of group of durability according to the lower limit of temporary resistance.
On quality of finishing of a surface sheet hire is subdivided into groups for
- holodnokatany - I - especially high finishing, II - high finishing, III - the increased finishing
- hot-rolled - III - the increased finishing, IV - usual finishing.
On ability to an extract holodnokatany sheet hire up to 2 mm of groups thick of durability of K260B, K270B, K310B, K330B, K350B is subdivided:
- deep -
- normal - N
Hot-rolled sheet hire is produced thermally processed, holodnokatany - thermally processed and trained. In coordination with the customer holodnokatany sheet hire is produced without training.
Hot-rolled sheet hire from camps of continuous rolling is allowed to be produced without heat treatment. Hot-rolled sheet hire is produced as with an etched, and not etched surface.
Sheet hire is produced with a cut edge, and rolled hire - with not cut and cut edge.
|Group of durability||Steel brand (addition of 1997)|
|K270B||08ps, 08, 10kp, 10ps, 10|
|K490B||35, 40, 45, 50|
|OK300B||St1, St2 (all degrees of a raskisleniye)|
|OK360B||St3 (all degrees of a raskisleniye)|
|OK400B||St4 (all degrees of a raskisleniye), St5ps, St5sp|