Tubes
To stainless tubes manufactured from corrosion- and heat-resistant steel grades belong the following types:
- Seamless stainless steel tubes including:
- hot-rolled pipes from corrosion-resistant general-purpose steel manufactured by external diameter and wall thickness per
GOST 9940-81
gage and off-gage within the range from 1.5 to 10 m;
- cold- and warm-rolled tubes from corrosion-resistant general-purpose steel manufactured by external diameter and wall thickness per
GOST 9941-81
gage and off-gage within the range from 0.75 to 12.5 m;
- hot-rolled - GOST 9940-81 ;
- cold- and warm-rolled tubes - GOST 9941-81 .
Gauge of tubes complies with the following norms:
- electric-welded stainless steel tubes from corrosion-resistant steels designed to make pipelines and various structures and manufactured per GOST
11068-81 gage and off-gage within the range: gage - from 5 to 9 m, off-gage - from 1.5 to 9 m.
Gauge of tubes complies with GOST 11068-81. GOST 11068-81
.
Stainless tubes are made of steel grades which chemical composition complies with GOST 5632 .
For more details see GOST norms & Technical Requirements section.
