China De fabrikanten van de roestvrij staalbuis, onze Uitlaatbuis van de Roestvrij staal, Gelaste Staalbuis, de Ronde Pijp van het Roestvrij staal, de Roestvrij staalbuis van het Roestvrij staal, de Roestvrije Gerolde Buis, de Duplexroestvrij staalbuis zijn goed in kwaliteit en concurrerend in prijs.
Productnaam : TORICH GB / T14976 ASTM A269 A312 Naadloze roestvrijstalen buizen voor gemakkelijk transport
Standaard : GB / T14976 ASTM A269 A312
OD: 3-420 mm
WT: 0,5-50 mm
Lengte : 1-12m of volgens de daadwerkelijke toepassing en productie van klanten.
Toepassing : voor gemakkelijk transport
Staalkwaliteit : 201/202/304 / 304L / 316 / 316L321 / 310s / 410/420/430/440 / 439ect
Technologie : koudgewalst warmgewalst koud getrokken
Kenmerk:
Goede rondloopnauwkeurigheid
Goede oppervlaktekwaliteit
Goede OD- en ID-tolerantie
Hoge precisie
Stabiele kwaliteit
Gladde ruwheid
KWALITEITSBORGING VAN TORICH
Tabel 1 De tolerantie van buitendiameter en wanddikte Eenheid : 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
|
Tabel 2 De tolerantie van de minimale wanddikte- eenheid: 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
|
Tabel 3 Graad en chemische component
|
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
|
Tabel 4 Aanbevolen warmtebehandeling System.Steel Tube Mechanische eigenschappen en dichtheid
|
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
|
Tabel 5 Inspectie-item stalen buis. Testmethode en monsternemingshoeveelheid
|
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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