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ASTM A335 covers “low-alloy” steel pipes, i.e. pipes that have a total amount of alloying elements below 5%. The addition of higher percentages of alloying elements (example Nickel and Chromium) transforms the steel into higher alloys, like stainless steel, duplex, up to super-alloyed materials like Inconel, Hastelloy, Monel, etc.
Alloy steel pipes are used in the energy industry for high temperature and very low-temperature service (cryogenic), or for applications with very high pressures.
Sizes:Diameter:16-1016mm
Thickness: 2---120mm
Steel grade: P1 P2 P5 P9 P11 P12 P22
Surface: oiled, black painted to prevent rust
APPLICATION Fileds:Industrial Boilers, Power Plants, Nuclear Plants
Centerway steel co.,ltd can provide ASTM A335 Steel Pipe for factory price, passed ISO9001, SGS and other certificates, accept third-party testing, has complete testing and testing facilities, from product development, raw material supply, production process management, etc. in accordance with international quality The system standards are standardized to provide customers with satisfactory pre-sale, in-sale and after-sale services. Feel free to contact us anytime
|
A335 Pipe |
Over |
Under |
||
|
NPS [DN] |
in. |
mm |
in. |
mm |
|
1/8 to 1 1/2 / DN 6 to 40 |
1/64 (0.015) |
0.4 |
1/64 (0.015) |
0.4 |
|
Over 1 1/2 to 4 / DN 40 to 100 |
1/32 (0.031) |
0.79 |
1/32 (0.031) |
0.79 |
|
Over 4 to 8 / DN 100 to 200 |
1/16 (0.062) |
1.59 |
1/32 (0.031) |
0.79 |
|
Over 8 to 12 / DN 200 to 300 |
3/32 (0.093) |
2.38 |
1/32 (0.031) |
0.79 |
|
Over 12 / > DN 300 |
+/- 1% of the specified outside diameter |
|||
WALL THICKNESS
The tolerances in WT, in %, from specified are:
1/8 to 2 1/2 [6 to 65] incl., all t/D ratios: over 20%, under 12.5%
Above 2 1/2 [65], t/D < or = 5%: over 22.5%, under 12.5%
Above 2 1/2 [65], t/D > 5%: over 15%, under 12.5%
t = Specified Wall Thickness; D = Specified Outside Diameter)
This specification covers nominal wall and minimum wall seamless ferritic alloy-steel pipe intended for high-temperature service. ASTM A335 pipe ordered to this specification shall be suitable for fusion welding, bending, flanging (vanstoning), and similar forming operations.
CHEMICAL COMPOSITION
|
ASTM A335 |
UNS |
C≤ |
Mn |
P≤ |
S≤ |
Si≤ |
Cr |
Mo |
|
P1 |
K11522 |
0.10~0.20 |
0.30~0.80 |
0.025 |
0.025 |
0.10~0.50 |
– |
0.44~0.65 |
|
P2 |
K11547 |
0.10~0.20 |
0.30~0.61 |
0.025 |
0.025 |
0.10~0.30 |
0.50~0.81 |
0.44~0.65 |
|
P5 |
K41545 |
0.15 |
0.30~0.60 |
0.025 |
0.025 |
0.5 |
4.00~6.00 |
0.44~0.65 |
|
P5b |
K51545 |
0.15 |
0.30~0.60 |
0.025 |
0.025 |
1.00~2.00 |
4.00~6.00 |
0.44~0.65 |
|
P5c |
K41245 |
0.12 |
0.30~0.60 |
0.025 |
0.025 |
0.5 |
4.00~6.00 |
0.44~0.65 |
|
P9 |
S50400 |
0.15 |
0.30~0.60 |
0.025 |
0.025 |
0.50~1.00 |
8.00~10.00 |
0.44~0.65 |
|
P11 |
K11597 |
0.05~0.15 |
0.30~0.61 |
0.025 |
0.025 |
0.50~1.00 |
1.00~1.50 |
0.44~0.65 |
|
P12 |
K11562 |
0.05~0.15 |
0.30~0.60 |
0.025 |
0.025 |
0.5 |
0.80~1.25 |
0.44~0.65 |
|
P15 |
K11578 |
0.05~0.15 |
0.30~0.60 |
0.025 |
0.025 |
1.15~1.65 |
– |
0.44~0.65 |
|
P21 |
K31545 |
0.05~0.15 |
0.30~0.60 |
0.025 |
0.025 |
0.5 |
2.65~3.35 |
0.80~1.60 |
|
P22 |
K21590 |
0.05~0.15 |
0.30~0.60 |
0.025 |
0.025 |
0.5 |
1.90~2.60 |
0.87~1.13 |
|
P91 |
K91560 |
0.08~0.12 |
0.30~0.60 |
0.02 |
0.01 |
0.20~0.50 |
8.00~9.50 |
0.85~1.05 |
|
P92 |
K92460 |
0.07~0.13 |
0.30~0.60 |
0.02 |
0.01 |
0.5 |
8.50~9.50 |
0.30~0.60 |
MECHANICAL PROPERTIES
|
|
|
|
|
|
Hardness |
|
|
A335 Low-Alloy Pipe |
UNS Number |
Yield Strength ksi |
Tensile Strength ksi |
Elongation % |
Rockwell |
Brinell |
|
P1 |
K11522 |
30 |
55 |
30 |
– |
– |
|
P2 |
K11547 |
30 |
55 |
30 |
– |
– |
|
P5 |
K41545 |
40 |
70 |
30 |
– |
207 max |
|
P9 |
S50400 |
30 |
60 |
30 |
– |
– |
|
P11 |
K11597 |
30 |
60 |
20 |
– |
– |
|
P12 |
K11562 |
32 |
60 |
30 |
– |
174 max |
|
P22 |
K21590 |
30 |
60 |
30 |
– |
– |
|
P91 |
K91560 |
60 |
85 |
20 |
– |
– |
