Produktname: GB 9948 Material10 # 20 # 12CrMo 15CrMo 12Cr1MoV Petroleum Cracking nahtlose Stahlrohre
Wir sind Hersteller der nahtlosen Stahlrohre in China, wenn Sie nahtloses Kohlenstoffstahlrohr, Öl-Zylinder-Stahlrohr, Präzisions-nahtloses Stahlrohr, Hydraulikzylinder-Stahlrohr kaufen möchten, treten Sie mit uns bitte in Verbindung.
Aus Durchmesser: 3 ~ 600mm
Wandstärke: 0,5 ~ 50 mm
Anwendung: Es ist für die nahtlose Stahlrohre für Ofen, Wärmetauscher Petroleum Cracking usw. verwendet.
Tabelle 1 Die Toleranzen des Außendurchmessers und der Wandstärke Einheit: mm
|
Sort Code
|
Manufacuring Method
|
Nominal Size
|
Tolerances
|
|
Common Level
|
High Level
|
|
W-H
|
Hot
Rolling (Extrusion)
|
Outer
Diameter D
|
≤54
|
±0.50
|
±0.30
|
|
＞54~325
|
±1%D
|
±0.75%D
|
|
＞325
|
±1%D
|
-
|
|
Wall
Thicknass S
|
≤20
|
+15%S
-10%S
|
±10%S
|
|
＞20
|
+12.5%S
-10%S
|
±10%S
|
|
Hot
Expand
|
Outer
Diameter D
|
All
|
±1%D
|
|
Wall
Thicknass S
|
All
|
±15%S
|
|
W-C
|
Cold
Drawn(Rolling)
|
Outer
Diameter D
|
≤25.4
|
±0.15
|
|
＞25.4~40
|
±0.20
|
|
＞40~50
|
±0.25
|
|
＞50~60
|
±0.30
|
|
＞60
|
±0.75%D
|
±0.5%D
|
|
Wall
Thicknass S
|
≤3.0
|
±0.3
|
±0.2
|
|
＞3.0
|
±10%S
|
±7.5%S
|
Tabelle2 Die Toleranz der Mindestwandstärke Einheit: mm
|
Sort Code
|
Manufacturing Method
|
Minimum Wall
Thickness Smin
|
Tolerance
|
|
Common Level
|
High Level
|
|
W-H
|
Hot
Rolling(Extrusion)
|
≤4.0
|
+0.90
0
|
+0.70
0
|
|
＞4.0
|
+25%Smin
0
|
+22%Smin
0
|
|
W-C
|
Cold
Drawn(Rolling)
|
≤3.0
|
+0.6
0
|
+0.4
0
|
|
＞3.0
|
+20%Smin
0
|
+15%Smin
0
|
Tabelle3 Stahlsorte und chemische Zusammensetzung
|
Steel grade
|
Chemical composition %
|
|
C
|
Si
|
Mn
|
Cr
|
Mo
|
Ni
|
Nb
|
Ti
|
V
|
Cu
|
P
|
S
|
|
≤
|
|
10
|
0.07~
0.13
|
0.17~
0.37
|
0.35~
0.65
|
≤0.15
|
≤0.15
|
≤
0.25
|
-
|
-
|
≤0.08
|
≤0.20
|
0.025
|
0.015
|
|
20
|
0.17~
0.23
|
0.17~
0.37
|
0.35~
0.65
|
≤0.25
|
≤0.15
|
≤
0.25
|
-
|
-
|
≤0.08
|
≤0.20
|
0.025
|
0.015
|
|
12CrMo
|
0.08~
0.15
|
0.17~
0.37
|
0.40~
0.70
|
0.40~
0.70
|
0.40~
0.55
|
≤
0.30
|
-
|
-
|
-
|
≤0.20
|
0.025
|
0.015
|
|
15CrMo
|
0.12~
0.018
|
0.17~
0.37
|
0.40~
0.70
|
0.80~
1.10
|
0.40~
0.55
|
≤
0.30
|
-
|
-
|
-
|
≤0.20
|
0.025
|
0.015
|
|
12CrlMo
|
0.08~
0.15
|
0.50~
1.00
|
0.30~
0.60
|
1.00~
1.50
|
0.45~
0.65
|
≤
0.30
|
-
|
-
|
-
|
≤0.20
|
0.025
|
0.015
|
|
12CrlMoV
|
0.08~
0.15
|
0.17~
0.37
|
0.40~
0.70
|
0.90~
1.20
|
0.25~
0.35
|
≤
0.30
|
-
|
-
|
0.15~
0.30
|
≤0.20
|
0.025
|
0.015
|
|
12Cr2Mo
|
0.08~
0.15
|
≤0.50
|
0.40~
0.60
|
2.00~
2.50
|
0.90~
1.13
|
≤
0.30
|
-
|
-
|
-
|
≤0.20
|
0.025
|
0.015
|
|
12Cr5MoI
12Cr5MoNT
|
≤
0.15
|
≤0.50
|
0.30~
0.60
|
4.00~
6.00
|
0.45~
0.60
|
≤
0.60
|
-
|
-
|
-
|
≤0.20
|
0.025
|
0.015
|
|
12Cr9MoI
12Cr9MoNT
|
≤
0.15
|
0.25~
1.00
|
0.30~
0.60
|
8.00~
10.00
|
0.90~
1.10
|
≤
0.60
|
-
|
-
|
-
|
≤0.20
|
0.025
|
0.015
|
|
07Cr19Ni10
|
0.04~
0.10
|
≤
1.00
|
≤2.00
|
18.00~
20.00
|
-
|
8.00~
11.00
|
-
|
-
|
-
|
-
|
0.030
|
0.015
|
|
07Cr18Ni11Nb
|
0.04~
0.10
|
≤
1.00
|
≤2.00
|
17.00~
19.00
|
-
|
9.00~
12.00
|
8C~
1.10
|
-
|
-
|
-
|
0.030
|
0.015
|
|
07Cr19Ni11NTi
|
0.04~
0.10
|
≤0.75
|
≤2.00
|
17.00~
20.00
|
-
|
9.00~
13.00
|
-
|
4C~
0.60
|
-
|
-
|
0.030
|
0.015
|
|
022Cr17Ni12Mo2
|
≤
0.30
|
≤1.00
|
≤2.00
|
16.00~
18.00
|
2.00~
3.00
|
10.00~
14.00
|
-
|
-
|
-
|
-
|
0.030
|
0.015
|
Tabelle4 Wärmebehandlungsstandard
|
Steel
Grade
|
Heat
Treatment Standard
|
|
10a
|
Normalizing;At Temperature 880℃~940℃
|
|
20a
|
Normalizing:At Temperature 880℃~940℃
|
|
12CrMob
|
Normalizing:At Temperature 900℃~960℃
Tempering:At Temperature 670℃~730℃
|
|
15CrMob
|
Normalizing:At Temperature 900℃~960℃
Tempering:At Temperature 680℃~730℃
|
|
12Cr1Mob
|
Normalizing:At Temperature 900℃~960℃
Tempering:At Temperature 680℃~750℃
|
|
12Cr1MoVb
|
S≤30mm:Normalizing:At Temperature 980℃~1020℃
Tempering:At Temperature 720℃~760℃
S＞30mm:Quenching:At Temperature 950℃~990℃
Tempering:At Temperature 720℃~760℃
Or Normalizing:At Temperature 980℃~1020℃
(rapid cooling after Normalizing)
Tempering:At Temperature 720℃~760℃
|
|
12Cr2Mob
|
S≤30mm:Normalizing:At Temperature 900℃~960℃
Tempering:At Temperature 700℃~750℃
S＞30mm:Quenching:At Temperature ≥ 900℃
Tempering:At Temperature 700℃~750℃
Or Normalizing:At Temperature 900℃~960℃
(rapid cooling after Normalizing)
Tempering:At Temperature 700℃~750℃
|
|
12Cr5MoI
|
Full Annealing or isothermal
annealing
|
|
12Cr5MoNT
|
Normalizing:At Temperature 930℃~980℃
Tempering:At Temperature 730℃~770℃
|
|
12Cr9MoI
|
Full Annealing or isothermal
annealing
|
|
12Cr9MoNT
|
Normalizing:At Temperature 890℃~950℃
Tempering:At Temperature 720℃~800℃
|
|
07Cr19Ni10
|
Treatment with solid solving:At Temperature ≥ 1040℃
(rapid
cooling after Treatment)
|
|
07Cr18Ni11Nb
|
Treatment with solid solving:
For Hot Rolled Tube At Temperature ≥ 1050℃
For Cold Drawn(rolled)Tube At Temperature ≥ 1100℃
(rapid
cooling after Treatment)
|
|
07Cr19Ni11Ti
|
Treatment with solid solving:
For Hot Rolled Tube At Temperature ≥ 1050℃
For Cold Drawn(rolled)Tube At Temperature ≥ 1100℃
(rapid
cooling after Treatment)
|
Tabelle5 Mechanische Eigenschaft
|
Steel Grade
|
Tensile
Strength
Rm/MPa
|
Lower yield strength Rp0.2/MPa
|
Elongation A/%
|
Shock
absorption KV2/J
|
Brinell
hardness
|
|
Longitudinal
direction
|
Transverse
|
Longitudinal
direction
|
Transverse
|
|
≥
|
≤
|
|
10
|
335~475
|
205
|
25
|
23
|
40
|
27
|
-
|
|
20
|
410~550
|
245
|
24
|
22
|
40
|
27
|
-
|
|
12CrMo
|
410~560
|
205
|
21
|
19
|
40
|
27
|
156HBW
|
|
15CrMo
|
440~640
|
295
|
21
|
19
|
40
|
27
|
170HBW
|
|
12Cr1Mo
|
415~560
|
205
|
22
|
20
|
40
|
27
|
163HBW
|
|
12Cr2MoV
|
470~640
|
255
|
21
|
19
|
40
|
27
|
179HBW
|
|
12Cr2Mo
|
450~600
|
280
|
22
|
20
|
40
|
27
|
163HBW
|
|
12Cr5MoI
|
415~590
|
205
|
22
|
20
|
40
|
27
|
163HBW
|
|
12Cr5MoNT
|
480~640
|
280
|
20
|
18
|
40
|
27
|
-
|
|
12Cr9MoI
|
460~640
|
210
|
20
|
18
|
40
|
27
|
179HBW
|
|
12Cr9MoNT
|
590~740
|
390
|
18
|
16
|
40
|
27
|
-
|
|
07Cr19Ni10
|
≥520
|
205
|
35
|
-
|
-
|
187HBW
|
|
07Cr18Ni11Nb
|
≥520
|
205
|
35
|
-
|
-
|
187HBW
|
|
07Cr19Ni11Ti
|
≥520
|
205
|
35
|
-
|
-
|
187HBW
|
|
022Cr17Ni12Mo2
|
≥485
|
170
|
35
|
-
|
-
|
187HBW
|
|
If
the wall thickness of the tube is less than 5mm, doesn`t have to do the hardness
test
|
Tabelle6 Kerbschlagzähigkeitsabsorptionsdämpfungsfaktor einer kleinen Probe
|
Specimen
|
Specimen size(heightXwidth)mm
|
Attenuation factor
|
|
Standard
sample
|
10X10
|
1.00
|
|
Small
sample
|
10X7.5
|
0.75
|
|
Small
sample
|
10X5
|
0.50
|
Table7 Aufweitgeschwindigkeit von Stahlrohren
|
Steel
|
Diameter flaring rate of
steel tubes/%
|
|
ID/OD
|
|
≤0.6
|
＞0.6~0.8
|
＞0.8
|
|
Carbon
structural steel
|
10
|
12
|
17
|
|
Alloy
structural steel
|
8
|
10
|
15
|
|
Stainless(heat resistance)steel
|
12
|
15
|
20
|
Tabelle 8 Prüfgegenstände und Probenahmemenge von Stahlrohren
|
Number
|
Testing items
|
Sampling quantity
|
|
1
|
Chemical
composition
|
1
sample from each furnace
|
|
2
|
Tensile
test
|
1 sample
from each of two steel tubes on each batch
|
|
3
|
Hardness
test
|
3
samples taken on 2 steel tubes on each batch
|
|
4
|
Impact
test
|
All
|
|
5
|
Hydraulic
test
|
1 sample
from each of two steel tubes on each batch
|
|
6
|
Flattening
test
|
2
samples taken on 2 steel tubes on each batch
|
|
7
|
Bending
test
|
1
sample taken on 2 steel tubes on each furnace
|
|
8
|
Flaring
test
|
2
samples taken on 2 steel tubes on each batch
|
|
9
|
Macroscopic
examination
|
1
sample taken on 2 steel tubes on each furnace
|
|
10
|
Non-metallic
inclusions
|
1
sample taken on 2 steel tubes on each furnace
|
|
11
|
Eddy
current testing
|
All
|
|
12
|
Magnetic
flux leakage detection
|
All
|
|
13
|
Ultrasonic
testing
|
All
|
|
14
|
Intergranular
corrosion test
|
1 sample
from each of two steel tubes on each batch
|
Tabelle A.1 Vergleichstabelle ähnlicher Stahlsorte
|
No.
|
GB
|
Similar Steel Grade
|
|
ISO
|
EN
|
ASTM/ASME
|
JIS
|
|
1
|
10
|
-
|
P195GH
|
A
|
STB
340
|
|
2
|
20
|
PH26
|
P235GH
|
A-1.B
|
STB
410
|
|
3
|
12CrMo
|
-
|
-
|
T2/P2
|
STBA
20
|
|
4
|
15CrMo
|
13CrMo4-5
|
13CrMo4-5
|
T12/P12
|
STBA
22
|
|
5
|
12Cr1Mo
|
-
|
10CrMo5-5
|
T11/P11
|
STBA
23
|
|
6
|
12Cr1MoV
|
-
|
-
|
-
|
-
|
|
7
|
12Cr2Mo
|
10CrMo9-10
|
10CrMo9-10
|
T22/P22
|
STBA
24
|
|
8
|
12Cr5Mo-I
|
X11CrMo9-1TA
|
X11CrMo5+I
|
T5/P5
|
STBA
25
|
|
9
|
12Cr5Mo-NT
|
-
|
X11CrMo5+NT
|
T5/P5
|
STBA
25
|
|
10
|
12Cr9Mo-I
|
X11CrMo9-1TA
|
X11CrMo9-1+I
|
T9/P9
|
STBA
26
|
|
11
|
12Cr9Mo-NT
|
-
|
X11CrMo9-1+NT
|
T9/P9
|
STBA
26
|
|
12
|
07Cr19Ni10
|
X7CrNi18-9
|
X6CrNi18-10
|
TP304H
|
SUS
304H TB
|
|
13
|
07Cr18Ni11Nb
|
X7CrNiNb18-10
|
X7CrNiNb18-10
|
TP347H
|
SUS
347H TB
|
|
14
|
07Cr19Ni11Ti
|
-
|
X6CrNiTi18-10
|
TP321H
|
SUS
321H TB
|
|
15
|
022Cr17Ni12Mo2
|
-
|
X2CrNiMo17-12-2
|
TP316L
|
SUS
316L TB
|
Contact Now
