Nome prodotto: GB / T12770 Materiale 12Cr18Ni9 019Cr19Mo2NbTi Tubi saldati in acciaio inossidabile per strutture meccaniche
S Campo ize: OD: 3-500mm WT: 0.5-50mm L: 2000-12000mm secondo l'applicazione effettiva dei clienti e produzione.
Applicazione: per scopi di strutture meccaniche
Grado d'acciaio: 12Cr18Ni9,06Cr19Ni10,022Cr19Ni10,06Cr25Ni20,022Cr22Ni5Mo3N, 019Cr19Mo2NbTi, 06Cr13Al
Caratteristica:
Buona concentricità
Buona qualità della superficie
Buona tolleranza OD e ID
Alta precisione
Qualità stabile
Rugosità uniforme
GARANZIA DI QUALITÀ DELLA TORQUE
Table1Tolleranza di 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
|
Tabella 2Tolleranza del 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
|
Tabella 3: grado di flessione
|
Nominal Wall Thickness/mm
|
Bending Degree/(mm/m)
|
|
≤108
|
≤1.0
|
|
＞108~325
|
≤1.5
|
|
＞325
|
≤2.5
|
Tabella 4: densità dell'acciaio e calcolo del peso teorico
|
No.
|
Steel Grade
|
Density/(kg/dm3)
|
The formula after conversion
|
|
1
|
12Cr18Ni9
|
7.93
|
W=0.02491S(D-S)
|
|
2
|
06Cr19Ni10
|
|
3
|
022Cr19Ni10
|
7.90
|
W=0.02482S(D-S)
|
|
4
|
06Cr25Ni20
|
7.98
|
W=0.02507S(D-S)
|
|
5
|
06Cr17Ni12Mo2
|
8.00
|
W=0.02513S(D-S)
|
|
6
|
022Cr17Ni12Mo2
|
|
7
|
06Cr18Ni11Ti
|
8.03
|
W=0.02523S(D-S)
|
|
8
|
06Cr18Ni11Nb
|
|
9
|
022Cr22Ni5Mo3N
|
7.80
|
W=0.02450S(D-S)
|
|
10
|
022Cr23Ni5Mo3N
|
|
11
|
022Cr25Ni7Mo4N
|
|
12
|
022Cr18Ti
|
7.70
|
W=0.02491S(D-S)
|
|
13
|
019Cr19Mo2NbTi
|
7.75
|
W=0.02435S(D-S)
|
|
14
|
06Cr13Al
|
|
15
|
022Cr11Ti
|
|
16
|
022Cr12Ni
|
|
17
|
06Cr13
|
Tabella 5 Grado d'acciaio e componente chimico
|
No.
|
Type
|
Unified digital code
|
Grade
|
Chemical Componenet(Quality Fraction)/%
|
|
C
|
Si
|
Mn
|
P
|
S
|
Ni
|
Cr
|
Mo
|
N
|
Others
|
|
1
|
Austenite
|
S30210
|
12Cr18Ni9
|
≤0.15
|
≤0.75
|
≤2.00
|
≤0.040
|
≤0.030
|
8~10
|
17~19
|
-
|
≤0.10
|
-
|
|
2
|
S30408
|
06Cr19Ni10
|
≤0.08
|
≤0.75
|
≤2.00
|
≤0.040
|
≤0.030
|
8~11
|
18~20
|
-
|
-
|
-
|
|
3
|
S30403
|
022Cr19Ni10
|
≤0.030
|
≤0.75
|
≤2.00
|
≤0.040
|
≤0.030
|
8~12
|
18~20
|
-
|
-
|
-
|
|
4
|
S31008
|
06Cr25Ni20
|
≤0.08
|
≤1.50
|
≤2.00
|
≤0.040
|
≤0.030
|
19~22
|
24~26
|
-
|
-
|
-
|
|
5
|
S31608
|
06Cr17Ni12Mo2
|
≤0.08
|
≤0.75
|
≤2.00
|
≤0.040
|
≤0.030
|
10~14
|
16~18
|
2~3
|
-
|
-
|
|
6
|
S31603
|
022Cr17Ni12Mo2
|
≤0.08
|
≤0.75
|
≤2.00
|
≤0.040
|
≤0.030
|
10~14
|
16~18
|
2~3
|
-
|
-
|
|
7
|
S32168
|
06Cr18Ni11Ti
|
≤0.08
|
≤0.75
|
≤2.00
|
≤0.040
|
≤0.030
|
9~12
|
17~19
|
-
|
-
|
Ti15C~0.70
|
|
8
|
S34778
|
06Cr18Ni11Nb
|
≤0.08
|
≤0.75
|
≤2.00
|
≤0.040
|
≤0.030
|
9~12
|
17~19
|
-
|
-
|
Nb110C~1010
|
|
9
|
Bipolar
|
S22253
|
022Cr22Ni5Mo3N
|
≤0.030
|
≤1.00
|
≤2.00
|
≤0.030
|
≤0.020
|
4.5~6.5
|
21~23
|
2.5~3.5
|
0.08~0.20
|
|
|
10
|
S22053
|
022Cr23Ni5Mo3N
|
≤0.030
|
≤1.00
|
≤2.00
|
≤0.030
|
≤0.020
|
4.5~6.5
|
22~23
|
3~3.5
|
0.14~0.20
|
|
|
11
|
S25073
|
022Cr25Ni7Mo4N
|
≤0.030
|
≤0.80
|
≤1.20
|
≤0.035
|
≤0.020
|
6~8
|
24~26
|
3~5
|
0.24~0.32
|
Cu≤0.50
|
|
12
|
Ferrite
|
S11863
|
022Cr18Ti
|
≤0.03
|
≤0.75
|
≤1
|
≤0.04
|
≤0.03
|
(0.60)
|
16~19
|
-
|
-
|
Ti or Nb:0.1~1
|
|
13
|
S11972
|
019Cr19Mo2NbTi
|
≤0.025
|
≤0.75
|
≤1
|
≤0.04
|
≤0.03
|
1.00
|
17.5~19.50
|
1.75~2.50
|
≤0.035
|
(Ti+Nb):[0.2+4(C+N)]~0.8
|
|
14
|
S11348
|
06Cr13Al
|
≤0.08
|
≤0.75
|
≤1
|
≤0.04
|
≤0.03
|
(0.60)
|
11.50~14.50
|
-
|
-
|
Al:0.1~0.3
|
|
15
|
S11163
|
022Cr11Ti
|
≤0.03
|
≤0.75
|
≤1
|
≤0.04
|
≤0.02
|
(0.60)
|
10.50~11.70
|
-
|
≤0.030
|
Ti≥8(C+N),Ti:0.15~0.50,Nb≤0.10
|
|
16
|
S11213
|
022Cr12Ni
|
≤0.03
|
≤0.75
|
≤1.5
|
≤0.04
|
≤0.015
|
0.3~1.00
|
10.50~12.50
|
-
|
≤0.030
|
|
|
17
|
Martensitic
|
S41008
|
06Cr13
|
≤0.08
|
≤0.75
|
≤1
|
≤0.04
|
≤0.03
|
(0.60)
|
11.50~13.50
|
-
|
-
|
-
|
|
Note:The number in brackets is the maximum allowed to be added. Chemical component of some grade is different from GB/T20878.
|
Tabella 6 Regime di trattamento termico raccomandato dei tubi di acciaio
|
No.
|
Type
|
Steel grade
|
Recommendatory heat treating regime
|
|
1
|
Austenite
|
12Cr18Ni9
|
1010℃~1150℃,water-cooling or other methods of rapid cooling
|
|
2
|
06Cr19Ni10
|
1010℃~1150℃,water-cooling or other methods of rapid cooling
|
|
3
|
022Cr19Ni10
|
1010℃~1150℃,water-cooling or other methods of rapid cooling
|
|
4
|
06Cr25Ni20
|
1030℃~1180℃,water-cooling or other methods of rapid cooling
|
|
5
|
06Cr17Ni12Mo2
|
1010℃~1150℃,water-cooling or other methods of rapid cooling
|
|
6
|
022Cr17Ni12Mo2
|
1010℃~1150℃,water-cooling or other methods of rapid cooling
|
|
7
|
06Cr18Ni11Ti
|
920℃~1150℃,water-cooling or other methods of rapid cooling
|
|
8
|
06Cr18Ni11Nb
|
980℃~1150℃,water-cooling or other methods of rapid cooling
|
|
9
|
Dual-phase steel
|
022Cr22Ni5Mo3N
|
1020℃~1100℃,water-cooling
|
|
10
|
022Cr23Ni5Mo3N
|
1020℃~1100℃,water-cooling
|
|
11
|
022Cr25Ni7Mo4N
|
1025℃~1125℃,water-cooling
|
|
12
|
Ferritic
|
022Cr18Ti
|
780℃~950℃,rapid cooling or slow cooling
|
|
13
|
019Cr19Mo2NbTi
|
800℃~1050℃,rapid cooling
|
|
14
|
06Cr13Al
|
780℃~830℃,rapid cooling or slow cooling
|
|
15
|
022Cr11Ti
|
800℃~900℃,rapid cooling or slow cooling
|
|
16
|
022Cr12Ni
|
700℃~820℃,rapid cooling or slow cooling
|
|
17
|
Martensite
|
06Cr13
|
750℃,rapid cooling ;800℃~900℃,slow cooling
|
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