Roestvrij stalen buis
China Fabrikanten van roestvrijstalen buizen, onze roestvrijstalen uitlaatbuis, gelaste stalen buis, ronde roestvrijstalen buis, Poolse roestvrijstalen buis, roestvrijstalen spiraalbuis, duplex roestvrijstalen buis zijn van goede kwaliteit en concurrerend in prijs.
Gelaste stalen buis
China Gelaste stalen buisfabrikant, kies de hoogwaardige spiraalgelaste stalen buis, hoogfrequent gelaste stalen buis, zwarte koolstofstaal gelaste buis, enz.
Productnaam: Gelaste austenitische ketel en warmtewisselaar Roestvrijstalen buizen
S ize bereik: OD: 3-500mm WT: 0.5-50mm L: 2000-12000mm volgens daadwerkelijke toepassing en productie klanten.
Toepassing: voor ketel en warmtewisselaar
Staalkwaliteit: 12Cr18Ni9,06Cr19Ni10,022Cr19Ni10,06Cr25Ni20,022Cr22Ni5Mo3N, 019Cr19Mo2NbTi, 06Cr13Al
Kenmerk:
Goede concentriciteit
Goede oppervlaktekwaliteit
Goede OD- en ID-tolerantie
Hoge precisie
Stabiele kwaliteit
Gladde ruwheid
TORICH KWALITEITSBORGING
Table1Tolerantie van OD
|
Classification
|
Nominal OD
|
Permissible Tolerance
|
|
PC
|
PB
|
PA
|
|
H
T
|
＜25
|
±0.20
|
±0.15
|
±0.10
|
|
≥25~＜40
|
±0.30
|
±0.25
|
±0.20
|
|
≥40~＜63
|
±0.50
|
±0.30
|
±0.25
|
|
≥63~＜90
|
±0.60
|
±0.50
|
±0.40
|
|
≥90~＜159
|
±0.80
|
±0.65
|
±0.50
|
|
≥159~＜300
|
±0.8%D
|
±0.7%D
|
±0.5%D
|
|
≥300~＜610
|
±0.1%D
|
±0.8%D
|
±0.6%D
|
|
≥10
|
protocol
|
protocol
|
protocol
|
|
WC
SP
|
＜25
|
±0.15
|
±0.12
|
±0.10
|
|
≥25~＜40
|
±0.20
|
±0.15
|
±0.13
|
|
≥40~＜50
|
±0.20
|
±0.18
|
±0.15
|
|
≥50~＜60
|
±0.25
|
±0.20
|
±0.18
|
|
≥60~＜90
|
±0.30
|
±0.28
|
±0.25
|
|
≥90~＜100
|
±0.40
|
±0.35
|
±0.30
|
|
≥100~＜200
|
±0.5%D
|
±0.4%D
|
protocol
|
|
≥200
|
protocol
|
protocol
|
protocol
|
Tabel 2 Tolerantie van WT
|
Nominal WT
|
Permissible Tolerance
|
|
＜0.5
|
±0..10
|
|
≥0.5~1.0
|
±0.15
|
|
＞1.0~2.0
|
±0.20
|
|
＞2.0~＜4.0
|
±0.30
|
|
≥4.0
|
±10%S
|
Tabel 3 Buiggraad
|
Nominal Wall Thickness/mm
|
Bending Degree/(mm/m)
|
|
≤108
|
≤1.0
|
|
＞108~325
|
≤1.5
|
|
＞325
|
≤2.5
|
Tabel 3 chemische samenstelling
|
Steel
grade
|
Chemical
compositon %
|
|
C
|
Si
|
Mn
|
P
|
S
|
Ni
|
Cr
|
Mo
|
N
|
|
12Cr18Ni9
|
0.15
|
1.00
|
2.00
|
0.035
|
0.03
|
8.00~10.00
|
17.00
~19.00
|
-
|
0.10
|
|
06Cr18Ni10
|
0.08
|
1.00
|
2.00
|
0.035
|
0.03
|
8.00~11.00
|
18.00
~20.00
|
-
|
-
|
|
022Cr19Ni10
|
0.030
|
1.00
|
2.00
|
0.035
|
0.03
|
8.00~12.00
|
18.00
~20.00
|
-
|
-
|
|
07Cr19Ni10
|
0.04~0.10
|
1.00
|
2.00
|
0.035
|
0.03
|
8.00~11.00
|
18.00
~20.00
|
-
|
-
|
|
06Cr19Ni10N
|
0.08
|
1.00
|
2.00
|
0.035
|
0.03
|
8.00~11.00
|
18.00
~20.00
|
-
|
0.10
~0.16
|
|
022Cr19Ni10N
|
0.030
|
1.00
|
2.00
|
0.035
|
0.03
|
8.00~11.00
|
18.00
~20.00
|
-
|
0.10
~0.16
|
|
10Cr18Ni12
|
0.12
|
1.00
|
2.00
|
0.035
|
0.03
|
10.50~13.00
|
18.00
~20.00
|
-
|
-
|
|
06Cr23Ni13
|
0.08
|
1.00
|
2.00
|
0.035
|
0.03
|
12.00~15.00
|
17.00
~19.00
|
-
|
-
|
|
03Cr25Ni20
|
0.08
|
1.00
|
2.00
|
0.035
|
0.03
|
19.00~22.00
|
22.00
~24.00
|
-
|
-
|
|
06Cr17Ni12Mo2
|
0.08
|
1.00
|
2.00
|
0.035
|
0.03
|
10.00~14.00
|
24.00
~26.00
|
2.00
~3.00
|
-
|
|
022Cr17Ni12Mo2
|
0.030
|
1.00
|
2.00
|
0.035
|
0.03
|
10.00~14.00
|
16.00
~18.00
|
2.00
~3.00
|
-
|
|
06Cr17Ni12Mo2Ti
|
0.08
|
1.00
|
2.00
|
0.035
|
0.03
|
10.00~14.00
|
16.00
18.00
|
2.00
~3.00
|
-
|
|
06Cr17Ni12MoN
|
0.08
|
1.00
|
2.00
|
0.035
|
0.03
|
10.00~13.00
|
16.00
~18.00
|
2.00
~3.00
|
0.10
~0.16
|
|
022Cr17Ni12Mo2N
|
0.030
|
1.00
|
2.00
|
0.035
|
0.03
|
10.00~13.00
|
16.00
~18.00
|
2.00
~3.00
|
0.10
~0.16
|
|
06Cr19Ni13Mo3
|
0.08
|
1.00
|
2.00
|
0.035
|
0.03
|
11.00~15.00
|
16.00
~18.00
|
3.00
~4.00
|
-
|
Tafel 4 Mechanisch eigendom
|
No.
|
No.in
GB/T20878
|
Unified
digital code
|
STEEL
GRADE
|
Recommended
heat treatment system
|
Tensile
property
|
Hardness
|
|
|
tensile
strength
Rm/(N/MM2)
|
Stipulated
elongation strength of plastic mold
Rp0.2/(N/mm2)
|
Elongation
A/%
|
HRB
|
|
|
≥
|
≤
|
|
|
1
|
13
|
S30210
|
12Cr18Ni9
|
≥1040℃.Rapid cooling
|
515
|
205
|
35
|
90
|
|
|
2
|
17
|
S30408
|
06Cr19Ni10
|
≥1040℃.Rapid cooling
|
515
|
205
|
35
|
90
|
|
|
3
|
18
|
S30409
|
022Cr19Ni10
|
≥1040℃.Rapid cooling
|
485
|
170
|
35
|
90
|
|
|
4
|
19
|
S30458
|
07Cr19Ni10
|
≥1040℃.Rapid cooling
|
515
|
205
|
35
|
90
|
|
|
5
|
23
|
S30458
|
06Cr19Ni10N
|
≥1040℃.Rapid cooling
|
550
|
240
|
35
|
90
|
|
|
6
|
25
|
S30453
|
022Cr19Ni10N
|
≥1040℃.Rapid cooling
|
515
|
205
|
35
|
90
|
|
|
7
|
26
|
S30510
|
10Cr18Ni12
|
≥1040℃.Rapid cooling
|
515
|
205
|
35
|
90
|
|
|
8
|
32
|
S30908
|
06Cr23Ni13
|
≥1040℃.Rapid cooling
|
515
|
205
|
35
|
90
|
|
|
9
|
35
|
S31008
|
06Cr23Ni20
|
≥1040℃.Rapid cooling
|
515
|
205
|
35
|
90
|
|
|
10
|
38
|
S31608
|
06Cr17Ni12Mo2
|
≥1040℃.Rapid cooling
|
515
|
205
|
35
|
90
|
|
|
11
|
39
|
S31603
|
022Cr17Ni12Mo2
|
≥1040℃.Rapid cooling
|
485
|
170
|
35
|
90
|
|
|
12
|
41
|
S31668
|
06Cr17Ni12Mo2Ti
|
≥1040℃.Rapid cooling
|
515
|
205
|
35
|
90
|
|
|
13
|
43
|
S31658
|
06Cr17Ni12Mo2N
|
≥1040℃.Rapid cooling
|
550
|
240
|
35
|
90
|
|
|
14
|
44
|
S31653
|
022Cr17Ni12Mo2N
|
≥1040℃.Rapid cooling
|
515
|
205
|
35
|
90
|
|
|
15
|
49
|
S31708
|
06Cr19Ni13Mo3
|
≥1040℃.Rapid cooling
|
515
|
205
|
35
|
90
|
|
|
16
|
50
|
S31703
|
022Cr19Ni13Mo3
|
≥1040℃.Rapid cooling
|
515
|
205
|
35
|
90
|
|
|
17
|
55
|
S32168
|
06Cr18Ni11Ti
|
≥1040℃.Rapid cooling
|
515
|
205
|
35
|
90
|
|
|
18
|
62
|
S34778
|
06Cr18Ni11Nb
|
≥1040℃.Rapid cooling
|
515
|
205
|
35
|
90
|
|
|
19
|
63
|
S34779
|
07Cr18Ni11Nb
|
≥1040℃.Rapid cooling
|
515
|
205
|
35
|
90
|
Tabel 5 Inspectie-items en bemonsteringshoeveelheid
|
Inspection
items
|
sampling
quantity
|
|
Chemical
composition
|
Each
furnace
Take
one sample
|
|
Tensile
test
|
One
sample for each batch on two test tubes
|
|
Hardness
test
|
One
sample for each batch on two test tubes
|
|
Flattening
test
|
One
sample for each batch on two test tubes
|
|
Coiling
test
|
One
sample for each batch on two test tubes
|
|
Expansion
test
|
One
sample for each batch on two test tubes
|
|
Reversed
bending test
|
One
sample at every 450M of tubes
|
|
longitudinal
flattenin test
|
One
sample for each batch on two test tubes
|
|
Hydraulic
test
|
Per
piece
|
|
Eddy
current flaw detection
|
Per
piece
|
|
Intergranular
corrosion test
|
One
sample for each batch on two test tubes
|
|
Grain
size test
|
One
sample for each batch on two test tubes
|
|
Ray
detection
|
Per
piece
|
|
Underwater
air tightness test
|
Per
piece
|
China Fabrikanten van roestvrijstalen buizen, onze roestvrijstalen uitlaatbuis, gelaste stalen buis, ronde roestvrijstalen buis, Poolse roestvrijstalen buis, roestvrijstalen spiraalbuis, duplex roestvrijstalen buis zijn van goede kwaliteit en concurrerend in prijs.
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