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Corrosion-resistant alloy cold-rolled drawn seamless pipe (GB/T15011-1994) | Alloy Wiki
Home » Steel Guide » Steel World » Corrosion-resistant alloy cold-rolled drawn seamless pipe (GB/T15011-1994)
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Corrosion-resistant alloy cold-rolled drawn seamless pipe (GB/T15011-1994)

Posted by: steel world 2021-10-15 Comments Off on Corrosion-resistant alloy cold-rolled drawn seamless pipe (GB/T15011-1994)
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(1) For dimensions and specifications, see Table 8-54.
Table 8-54 Dimensions and specifications of corrosion-resistant alloy cold-rolled (drawn) seamless pipe (mm)
Wall thickness
diameter
(2) The allowable deviation is shown in Table 8-55.
Table 8-55 Allowable Dimensional Deviation of Corrosion-resistant Alloy Cold Rolled (drawn) Seamless Pipe (mm)
size
Allowable deviation
Outer diameter
6～10
±0.15
>10～30
±0.20
>30～60
±O. 30
Wall thick
0.5～1. O
Soil O. 12
>1.0～3.0
+12
%
-10
>3.0
±10%
Note: 1. The usual length of the pipe (indefinite length):
If the wall thickness is 0.5-0.8mm, it is 0.5-6m;
If the wall thickness is greater than 0.8mm, it is 1.0-5m.
2. The roundness of the pipe should not exceed the tolerance of the outer diameter, and the unevenness of the wall thickness should not exceed the tolerance of the wall thickness.
3. The bending degree per meter length of the pipe shall not exceed 2mm.
(3) The mechanical properties are shown in Table 8.56.
Table 8-56 Mechanical properties of cold-rolled (drawn) seamless pipe of corrosion-resistant alloy
Alloy grade
Test temperature/℃
Tensile properties
ób／MPa
ó0.2／MPa
δ5(%)
≥
NSlll
Room temperature
520
205
30
NSll2
Room temperature
450
170
30
NSll3
Room temperature
515
205
30
NSl41
Room temperature
540
215
35
NS311
Room temperature
570
245
40
NS312
Room temperature
550
240
30
NS315
Room temperature
550
240
30
NS331
Room temperature
540
195
35
Note: 1. This table shows the mechanical properties of pipes after solution treatment. The yield strength value is determined only when required by the purchaser (noted in the contract).
2. According to the request of the buyer, the pipe can also be delivered in cold drawn or cold rolled state, but it should be specified in the contract.

Link to this article：Corrosion-resistant alloy cold-rolled drawn seamless pipe (GB/T15011-1994)

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