GOST 10704-91 composiciones químicas de tubo de acero
Grado de acero
|
C
|
Si
|
Mn
|
Cr
|
Ni
|
Mo
|
S
|
P
|
Cu
|
N
|
08
|
0, 05-0, 12
|
0, 17-0, 37
|
0, 35-0, 65
|
0, 15
|
0, 30
|
-
|
0, 04
|
0, 035
|
0, 3
|
-
|
08ps
|
0, 05-0, 11
|
0, 05-0, 17
|
0, 35-0, 65
|
0, 10
|
-
|
0, 04
|
0, 035
|
-
|
-
|
0, 006
|
08KP
|
0, 05-0, 12
|
0, 03
|
0, 25-0, 50
|
0, 10
|
-
|
0, 04
|
0, 035
|
-
|
-
|
0, 006
|
10
|
0, 07-0, 14
|
0, 17-0, 37
|
0, 35-0, 65
|
0, 15
|
0, 3
|
-
|
-
|
-
|
-
|
-
|
10ps
|
0, 07-0, 14
|
0, 05-0, 17
|
0, 35-0, 65
|
0, 15
|
0, 3
|
-
|
0, 04
|
0, 035
|
0, 3
|
-
|
10KP
|
0, 07-0, 14
|
0, 07
|
0, 35-0, 65
|
0, 15
|
0, 3
|
-
|
0, 04
|
0, 035
|
0, 3
|
-
|
15
|
0, 12-0, 19
|
0, 17-0, 37
|
0, 35-0, 65
|
0, 25
|
-
|
-
|
0, 04
|
0, 035
|
-
|
-
|
15ps
|
0, 12-0, 19
|
0, 05-0, 17
|
0, 35-0, 65
|
0, 25
|
-
|
-
|
0, 04
|
0, 035
|
-
|
0, 006
|
15KP
|
0, 12-0, 19
|
0, 07
|
0, 25-0, 50
|
0, 25
|
-
|
-
|
0, 04
|
0, 035
|
-
|
0, 006
|
20
|
0, 17-0, 24
|
0, 17-0, 37
|
0, 35-0, 65
|
0, 25
|
0, 25
|
-
|
0, 03
|
0, 025
|
0, 3
|
-
|
20KP
|
0, 17-0, 24
|
0, 07
|
0, 25-0, 50
|
0, 25
|
-
|
-
|
0, 04
|
0, 035
|
-
|
-
|
20ps
|
0, 17-0, 24
|
0, 05-0, 17
|
0, 35-0, 65
|
0, 25
|
-
|
-
|
0, 04
|
0, 035
|
-
|
-
|
St3SP
|
0, 14-0, 22
|
0, 15-0, 30
|
0, 40-0, 65
|
0, 30
|
-
|
-
|
0, 05
|
0, 04
|
-
|
0, 01
|
St3ps
|
0, 14-0, 22
|
0, 05-0, 15
|
0, 40-0, 65
|
0, 30
|
-
|
-
|
0, 05
|
0, 04
|
-
|
0, 01
|
St3kp
|
0, 14-0, 22
|
0, 05
|
0, 30-0, 60
|
0, 30
|
-
|
-
|
0, 05
|
0, 04
|
-
|
0, 01
|
GOST 10704-91 propiedades mecánicas del tubo de acero sin costura
Grado de acero
|
Fuerza tensil
,
N/mm2
(min)
|
Límite de fluencia
,
N/mm2
(min)
|
La elongación, % (min)
|
08KP
|
294
|
174
|
27
|
08, 08ps, 10KP
|
314
|
196
|
25
|
10, 10 ps, 15KP
|
333
|
206
|
24
|
St2sp, St2ps, St2kp
|
333
|
206
|
24
|
15, 15 ps, 20KP
|
372
|
225
|
22
|
St3sp, St3ps, St3kp
|
372
|
225
|
22
|
20, 20 ps
|
412
|
245
|
21
|
GOST 10704 Tubo de acero sin costura de la tolerancia
El diámetro exterior:
D 12 - 30 mm: ± 0, 3 mm
D 32 - 51 mm: ± 0, 4 mm
D 57 - 108 mm ± 0, 8 mm
El espesor de pared:
S de 0, 9 - 5 mm ± 10%