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GB6479 High-pressure Chemical Fertilizer Equipments Seamless Steel Tubes
| Model No. : | GB6479 |
|---|---|
| Brand Name : | TORICH |
| Type : | Seamless |
Ningbo, Zhejiang, China
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Product description
GB6479 High-pressure Chemical Fertilizer Equipments Seamless Steel Tubes
Application:Seamless steel tubes of best quality carbon steel ,low alloy steel and stainless steel for high-pressure chemical fertilizer equipment and piping as well as for other chemical equipment.
We are manufacturer of Seamless Steel Tubes in China, if you want to buy Seamless Carbon Steel Tube, Oil Cylinder Steel Tube, Precision Seamless Steel Tube, Hydraulic Cylinder Steel Tube, please contact us.
OD:14-426mm WT:0.5-45mm Length:4-12m
Manufacture method:The manufacture method of steel and tube blank shall meet what specified in YB/T 5137.Steel tubes shall be manufacturd by seamless method of hot rolling (extrude pressing,expansion)or cold drawn(rolling). In case the demander assigns one manufacture method,it shall be specified in the contract.
Allowable Deviation of OD and Wall Thickness
|
Type of steel |
Size of steel tube |
Allowable deviation |
||
|
Common class |
High class |
|||
|
Hot rolled (Extrude pressed) Steel tube
|
OD,D |
≤159 |
±1.0%(Minimum value is ±0.5mm) |
±0.75%(Minimum value is ±0.3mm) |
|
＞159 |
±1.0% |
±0.90% |
||
|
Wall thickness,S |
≤20
＞20
|
+15% -10%
+12.5% -10.0% |
±10%
±10% |
|
|
Cold drawn (rolled)steel tubes |
OD,D |
14~30 ＞30~50 ＞50 |
±0.20mm ±0.30mm ±0.75% |
±0.15mm ±0.25mm ±0.6% |
|
Wall thickness |
≤3.0 |
+12.5% -10% |
±10% |
|
|
＞3.0 |
±10% |
±7.5% |
||
|
Note:Allowable deviation for OD of hot expanded steel tubes is ±1.0%,allowable deviation for wall thickness is±15%. |
||||
Brand Number and Chemical Composition of Steel
Brand number
Chemical composition,%
C
Si
Mn
Cr
Mo
V
W
Nb
Ni
P
S
Not more than
10
0.07~
0.14
0.17~
0.37
0.35~
0.65
0.030
0.030
20
0.07~
0.24
0.17~
0.37
0.35~
0.65
0.030
0.030
16Mn
0.12~
0.20
0.20~
0.60
1.20~
1.60
0.030
0.030
15MnV
0.12~
0.18
0.20~
0.60
1.20~
1.60
0.04~
0.12
0.030
0.030
10MoWVNb
0.07~
0.13
0.50~
0.80
0.50~
0.80
0.60~
0.90
0.30~
0.50
0.50~
0.90
0.06~
0.12
0.030
0.030
12CrMo
0.08~
0.15
0.17~
0.37
0.40~
0.70
0.40~
0.70
0.40~
0.55
0.030
0.030
15CrMo
0.12~
0.18
0.17~
0.37
0.40~
0.70
0.80~
1.10
0.40~
0.55
0.030
0.030
1Cr5Mo
≤0.15
≤0.50
≤0.60
4.00~
6.00
0.45~
0.60
≤0.60
0.030
0.030
12Cr2Mo
0.80~0.15
≤0.50
0.40~
0.70
2.0~
2.50
0.90~1.20
0.030
0.030
12SiMoVNb
0.08~
0.14
0.50~
0.80
0.60~
0.90
0.90~
1.10
0.30~
0.50
0.04~
0.08
0.030
0.030
Brand number
Residual element,% ≯
Ni
Cr
Cu
Mo
V
10
0.25
0.15
0.20
-
-
20
0.25
0.25
0.20
0.15
0.08
Others
0.30
0.30
0.20
-
-
Ningbo, Zhejiang, China
- Distributor/Wholesaler
- Manufacturer
- Service
- Trade Company
- OEM service
- Gold Supplier
- Platform Certification
- Online Expo
- Video
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