GOST 5157-83 Hot-Rolled Steel Profiles for Various Purposes

Hot-rolled steel profiles for various purposes: for bevel washers, oval, for sickles, for skates, segmented, for brake shoes. Used in various industries.

Profile dimensions, dimensional tolerances, cross-sectional area and mass per 1 m of length shall conform to Fig. 1-6 and Tables 1-5.

Profile for bevel washers

Dimensions, mm

2								Cross-sectional area, cm	Theoretical mass, 1 m, kg	For bolts with thread diameter
Nom.	Limit deviation	Nom.	Limit deviation	Nom.	Limit deviation	Nom.	Limit deviation
32	+0.5 -1.0	16	±1.0	5.8	+0.3 -0.5	4	+0.3 -0.5	1.56	1.22	8
40		20		6.2		4		2.04	1.60	10
60	+0.5 -1.2	30		7.3		4		3.42	2.68	12-14
80	+0.5 -1.4	40		8.4		4		4.96	3.89	16-20

Profile for sickles

Dimensions, mm

						Cross-sectional area, cm	Theoretical mass, 1 m, kg
Nom.	Limit deviation	Nom.	Limit deviation	Nom.	Limit deviation
23	±1.0	3	±0.5	1	±0.5	0.46	0.36
32		3		1		0.64	0.51

Profile for brake shoes

Cross-sectional area — 52.48 cm².

Theoretical mass of 1 m of profile — 41.2 kg.

Segmented profile

Dimensions, mm

				Cross-sectional area, cm	Theoretical mass of 1 m, kg
Nom.	Limit deviation	Nom.	Limit deviation
15	±0.5	5	±0.5	0.54	0.43
18		6		0.78	0.61
20		10		1.57	1.23
22		7		1.11	0.87
24		11		2.02	1.58
25		8		1.44	1.13
26		9		1.70	1.33
27	±0.6	13	+0.4 -0.5	2.72	2.13
30		14		3.23	2.53
34	±0.7	15		4.28	3.36
35		11		2.75	2.16
37		17		4.82	3.78
40		12		3.41	2.68
40		14		4.08	3.20
45	±0.8	13		4.14	3.25
50		20		7.47	5.81
60	±1.0	20		8.67	6.81
65		20		9.28	7.20

The cross-sectional area and mass of 1 m of profiles are calculated based on nominal dimensions. The density of steel is taken as 7.85 g/cm³ for mass calculation.

Profiles are manufactured in lengths from 2 to 6 m: cut-to-length, multiples of cut-to-length, and random length. The length of profiles is specified in the order.

Length tolerances for cut-to-length and multiple cut-to-length profiles shall not exceed:

• +40 mm — for profiles up to 4 m long;
• +60 mm — for profiles over 4 m long.

Profiles shall be straight. Twisting of profiles around the longitudinal axis is not permitted.

Curvature of profiles in the horizontal and vertical planes shall not exceed:

• 0.6% of length — for profiles No. 1, 2, 3 and 4;
• 0.25% of length — for profiles No. 5;
• 0.4% of length — for profiles No. 6.

Profile dimensions shall be determined at a distance of at least 500 mm from the end of the bar.