China Los fabricantes de tubos de acero inoxidable, nuestro tubo de escape de acero inoxidable, tubo de acero soldado, tubería de acero inoxidable redondo, tubo de acero inoxidable polaco, tubo en espiral inoxidable, tubo de acero inoxidable dúplex son buenos en calidad y competitivo en precio.
Nombre del producto : Tubos de acero inoxidable sin soldadura TORICH GB / T14976 ASTM A269 A312 para el transporte fliuid
Estándar : GB / T14976 ASTM A269 A312
OD: 3-420 mm
WT: 0.5-50mm
Longitud : 1-12m o según la aplicación y producción real de los clientes.
Aplicación : para fliuid transporte
Grado de acero : 201/202/304 / 304L / 316 / 316L321 / 310s / 410/420/430/440 / 439ect
Tecnología : laminado en frío en caliente laminado en frío
Característica:
Buena concentricidad
Buena calidad superficial
Buena tolerancia de OD e ID
Alta precisión
Calidad estable
Rugosidad suave
ASEGURAMIENTO DE LA CALIDAD TORICH
Tabla 1 La tolerancia del diámetro exterior y la unidad de espesor de la pared: mm
|
Hot rolling(extrusion,expansion) steel
tube
|
Cold drawn(rolling)steel tube
|
|
Diamension
|
Tolerance
|
Diamension
|
Tolerance
|
|
Ordinary Grade PA
|
High Grade PC
|
Ordinary Grade PA
|
High Grade PC
|
|
Nominal Outer Diameter
D
|
68~159
|
±1.25%D
|
±1%D
|
Nominal Outer Diameter
D
|
6~10
|
±0.20
|
±0.15
|
|
＞10~30
|
±0.30
|
±0.20
|
|
＞30~50
|
±0.40
|
±0.30
|
|
＞50~219
|
±0.85%D
|
±0.75%D
|
|
＞159
|
±1.5%D
|
＞219
|
±0.9%D
|
±0.8%D
|
|
Nominal Wall Thickness
S
|
＜15
|
+15%S
-12.5%S
|
±12.5%S
|
Nominal Wall Thickness
S
|
≤3
|
±12%S
|
±10%S
|
|
≥15
|
+20%S
-15%S
|
＞3
|
+12.5%S
-10%S
|
±10%S
|
Tabla2 La tolerancia del espesor mínimo de la pared Unidad: mm
|
Manufacturing
Method
|
Diamension
|
Tolerance
|
|
Ordinary
Grade PA
|
High
Grade PC
|
|
Hot
rolling(extrusion,expansion) steel tube
W-H
|
Smin＜15
|
+25%Smin
0
|
+22.5%Smin
0
|
|
Smin≥15
|
+32.5%Smin
0
|
|
Cold
drawn(rolling)steel tube
W-C
|
All
Wall Tickness
|
+22%Smin
0
|
+20%Smin
0
|
Tabla 3 Grado y componente químico
|
No.
|
GB/T
20878
|
Grade
|
|
Chemical
Component(Quality Fraction)/%
|
|
No.
|
Unified
Digital Code
|
C
|
Si
|
Mn
|
P
|
S
|
Ni
|
Cr
|
Mo
|
Cu
|
N
|
Others
|
|
1
|
13
|
S30210
|
12Cr18Ni9
|
0.15
|
1.00
|
2.00
|
0.035
|
0.030
|
8.00~10.00
|
17.00~19.00
|
-
|
-
|
0.10
|
-
|
|
2
|
17
|
S30408
|
06Cr19Ni10
|
0.08
|
1.00
|
2.00
|
0.035
|
0.030
|
8.00~11.00
|
18.00~20.00
|
-
|
-
|
-
|
-
|
|
3
|
18
|
S30403
|
022Cr19Ni10
|
0.030
|
1.00
|
2.00
|
0.035
|
0.030
|
8.00~12.00
|
18.00~20.00
|
-
|
-
|
-
|
-
|
|
4
|
23
|
S30458
|
06Cr19Ni10N
|
0.08
|
1.00
|
2.00
|
0.035
|
0.030
|
8.00~11.00
|
18.00~20.00
|
-
|
-
|
0.10~0.16
|
-
|
|
5
|
24
|
S30478
|
06Cr19Ni9NbN
|
0.030
|
1.00
|
2.50
|
0.035
|
0.030
|
7.50~10.50
|
18.00~20.00
|
-
|
-
|
0.15~0.30
|
Nb:0.15
|
|
6
|
25
|
S30453
|
022Cr19Ni10N
|
0.08
|
1.00
|
2.00
|
0.035
|
0.030
|
8.00~11.00
|
18.00~20.00
|
-
|
-
|
0.10~0.16
|
-
|
|
7
|
32
|
S30908
|
06Cr23Ni13
|
0.030
|
1.00
|
2.00
|
0.035
|
0.030
|
12.00~15.00
|
22.00~24.00
|
-
|
-
|
-
|
-
|
|
8
|
35
|
S31008
|
06Cr25Ni20
|
0.08
|
1.50
|
2.00
|
0.035
|
0.030
|
19.00~22.00
|
24.0~26.00
|
-
|
-
|
-
|
-
|
|
9
|
38
|
S31608
|
06Cr17Ni12Mo2
|
0.08
|
1.00
|
2.00
|
0.035
|
0.030
|
10.00~14.00
|
16.00~18.00
|
2.00~3.00
|
-
|
-
|
-
|
|
10
|
39
|
S31603
|
022Cr17Ni12Mo2
|
0.030
|
1.00
|
2.00
|
0.035
|
0.030
|
10.00~14.00
|
16.00~18.00
|
2.00~3.00
|
-
|
-
|
-
|
|
11
|
40
|
S31609
|
07Cr17Ni12Mo2
|
0.04~0.10
|
1.00
|
2.00
|
0.035
|
0.030
|
10.00~14.00
|
16.00~18.00
|
2.00~3.00
|
-
|
-
|
-
|
|
12
|
41
|
S31668
|
06Cr17Ni12Mo2Ti
|
0.08
|
1.00
|
2.00
|
0.035
|
0.030
|
10.00~14.00
|
16.00~18.00
|
2.00~3.00
|
-
|
-
|
Ti:5C~0.70
|
Tabla 4 Sistema de tratamiento térmico recomendado. Propiedades mecánicas y densidad del tubo de acero
|
Organization
type
|
No.
|
GB/T
20878
|
Grade
|
Recommended
Heat Treatment System
|
Mechanical
Properties
|
Density
ρ/(kg/dm2)
|
|
No.
|
Unified
digital code
|
Tensile
strength
Rm/MPa
|
Specified
plastic elongation strength
Rp0.2/MPa
|
Percentage
elongation after fracture
A/%
|
|
Not
less than
|
|
Austenitic
|
1
|
13
|
S30210
|
12Cr18Ni9
|
1010℃~1150℃,cold or otherwise
|
520
|
205
|
35
|
7.93
|
|
2
|
17
|
S30408
|
06Cr19Ni10
|
1010℃~1150℃,cold or otherwise
|
520
|
205
|
35
|
7.93
|
|
3
|
18
|
S30403
|
022Cr19Ni10
|
1010℃~1150℃,cold or otherwise
|
480
|
175
|
35
|
7.90
|
|
4
|
23
|
S30458
|
06Cr19Ni10N
|
1010℃~1150℃,cold or otherwise
|
550
|
275
|
35
|
7.93
|
|
5
|
24
|
S30478
|
06Cr19Ni9NbN
|
1010℃~1150℃,cold or otherwise
|
685
|
345
|
35
|
7.98
|
|
6
|
25
|
S30453
|
022Cr19Ni10N
|
1010℃~1150℃,cold or otherwise
|
550
|
245
|
40
|
7.93
|
|
7
|
32
|
S30908
|
06Cr23Ni13
|
1010℃~1150℃,cold or otherwise
|
520
|
205
|
40
|
7.98
|
|
8
|
35
|
S31008
|
06Cr25Ni20
|
1010℃~1150℃,cold or otherwise
|
520
|
205
|
40
|
7.98
|
|
9
|
38
|
S31608
|
06Cr17Ni12Mo2
|
1010℃~1150℃,cold or otherwise
|
520
|
205
|
35
|
8.00
|
|
10
|
39
|
S31603
|
022Cr17Ni12Mo2
|
1010℃~1150℃,cold or otherwise
|
480
|
175
|
35
|
8.00
|
|
11
|
40
|
S31609
|
07Cr17Ni12Mo2
|
≥1040℃,cold or otherwise
|
515
|
205
|
35
|
7.98
|
|
12
|
41
|
S31668
|
06Cr17Ni12Mo2Ti
|
1000℃~1100℃,cold or otherwise
|
530
|
205
|
35
|
7.90
|
Tabla 5 Ítem de inspección del tubo de acero. Método de prueba y cantidad de muestreo
|
No.
|
Inspection
Item
|
Sampling
Quantity
|
Sampling
Method
|
Test
Method
|
|
1
|
Chemical
Component
|
Take
a sample of each furance
|
GB/T
20066
|
GB/T
223.GB/T 11170.GB/T20123.GB/T 20124
|
|
2
|
Tensile
Test
|
Take
a sample between two steel tubes of each batch
|
GB/T
2975
|
GB/T
228.1
|
|
3
|
Flattening
Test
|
Take
a sample between two steel tubes of each batch
|
GB/T
246
|
GB/T
246
|
|
4
|
Flaring
Test
|
Take
a sample between two steel tubes of each batch
|
GB/T
242
|
GB/T
242
|
|
5
|
Hydraulic
Test
|
Each
piece
|
-
|
GB/T
241
|
|
6
|
Ultrasonic
Test
|
Each
piece
|
-
|
GB/T
5777-2008
|
|
7
|
Eddy
Test
|
Each
piece
|
-
|
GB/T
7735-2004
|
|
8
|
Intercrystalline
corrosion test
|
Take
a sample between two steel tubes of each batch
|
GB/T
4334-2008
|
GB/T
4334-2008
|
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