Alloy Steel Seamless Pipes (IBR APPROVED)
Alloy Steel Seamless Pipes (IBR) offered by us is made of alloy steel and feature exceptional performance properties. These are developed for energy-related applications involving oil & gas drilling and therefore are subjected to stresses in machine parts. Further, Alloy Steel Tubes are also used in domestic, professional or industrial areas.
Alloy Steel Seamless Pipes (ASME SA335 Grade P5)
Alloy Steel Seamless Pipes (ASME SA335 Grade P5) offered by us are made available in ASME SA335 as well as P1, P5, P9, P11, P12, P91 grades. Our expertise lies in offering these in different sizes & schedules, with IBR & latest edition NACE MR 0175 reports.
ASME Alloy Steel Seamless Tubes / Pipes (SA335 Grade P9)
ASME Alloy Steel Seamless Tubes / Pipes (SA335 Grade P9) manufactured, supplied and exported by us are used for various industrial applications. Our specialization in offering precision engineered alloy steels allow us to deliver these for various engineering applications in various grades like A-387 GR. P1, P5, P9, P11, P12, P22, P91, ASTM A-335 and others. The other specifications include:
Alloy Steel Pipes (ASTM A335 P11)
Alloy Steel Pipes (ASTM A335 P11) offered by us are made as per IBR standards and are used mainly for boiler operations. We source these seamless pipes in varied size range. Further, we can also get these customized as per boiler piping requirements. For ensuring in them optimum quality standards, we source these from quality manufacturers. We also offer clients of having their own mark on them.
Alloy Steel Pipes (ASTM A335 P12)
Alloy Steel Pipes (ASTM A335 P12) offered by us are available with ASTM A335 P12 standard and finds application in industries like Petrochemicals, Refineries, Fertilizers, Pharmaceuticals and others. We can source these seamless pipes in size range of up to 26 inches.
Alloy Seamless Pipes (ASTM A335 Grade P91 NACE)
Alloy Seamless Pipes (ASTM A335 Grade P91 NACE) offered by us are made available in ASTM A335 Grades. Made as per IBR standards, these are mainly used in boiler operations. Further, our expertise lies in offering these pipes in various size range as well as in customized parameters as per boiler piping requirements. Sourced from quality conscious manufacturers, we also offer our clients the option of adding their own mark on them.
Heat Treatment Requirements of A335 Alloy Steel Seamless Pipes
|
P5, P9, P11, and P22 |
|
|
Grade |
Heat Treatment Type |
Normalizing Temperature Range F [C] |
Subcritical Annealing
or Tempering
Temperature Range F
[C] |
P5 (b,c) |
Full or Isothermal Anneal |
|
|
|
Normalize and Temper |
***** |
1250 [675] |
|
Subcritical Anneal (P5c only) |
***** |
1325 - 1375 [715 - 745] |
P9 |
Full or Isothermal Anneal |
|
|
|
Normalize and Temper |
***** |
1250 [675] |
P11 |
Full or Isothermal Anneal |
|
|
|
Normalize and Temper |
***** |
1200 [650] |
P22 |
Full or Isothermal Anneal |
|
|
|
Normalize and Temper |
***** |
1250 [675] |
P91 |
Normalize and Temper |
1900-1975 [1040 - 1080] |
1350-1470 [730 - 800] |
|
Quench and Temper |
1900-1975 [1040 - 1080] |
1350-1470 [730 - 800] |
Chemical Requirements of A335 Alloy Steel Seamless Pipes
| Grade |
P-5 |
P-9 |
P-11 |
P-22 |
P-91 |
P-91 shall also include the following: |
| Element |
UNS Designation |
K41545 |
S50400 |
K11597 |
K21590 |
K91560 |
| Carbon |
0.15 max |
0.15 max |
0.05 - 0.15 |
0.05 - 0.15 |
0.08 - 0.12 |
V at 0.18 - 0.25 |
| Manganese |
0.30 - 0.60 |
0.30 - 0.60 |
0.30 - 0.60 |
0.30 - 0.60 |
0.30 - 0.60 |
N at 0.030 - 0.070 |
| Phosphorous, max |
0.025 |
0.025 |
0.025 |
0.025 |
0.020 |
Ni at 0.40 max |
| Sulfur, max |
0.025 |
0.025 |
0.025 |
0.025 |
0.010 |
Al at 0.02 max |
| Silicon |
0.50 max |
0.25 - 1.00 |
0.50 - 1.00 |
0.50 max |
0.20 -0.50 |
Cb at 0.06 - 0.10 |
| Chromium |
4.00 - 6.00 |
8.00 - 10.00 |
1.00 - 1.50 |
1.90 - 2.60 |
8.00 - 9.50 |
Ti at 0.01 max |
| Molybdenum |
0.45 -0.65 |
0.90 - 1.10 |
0.44 - 0.65 |
0.87 - 1.13 |
0.85 - 1.05 |
Zr at 0.01 max |
Tensile Requirements of A335 Alloy Steel Seamless Pipes
|
Seamless |
|
|
P-5 |
P-9 |
P-11 |
P-22 |
P-91 |
P91 shall not have a hardness not exceeding 250 HB/265 HV [25HRC]. |
Tensile Strength, min., psi |
|
|
|
|
|
|
ksi |
60 |
60 |
60 |
60 |
85 |
MPa |
415 |
415 |
415 |
415 |
585 |
|
Yield Strength, min., psi |
|
|
|
|
|
|
ksi |
30 |
30 |
30 |
30 |
60 |
|
MPa |
205 |
205 |
205 |
205 |
415 |
|
Permissible Variation in Wall Thickness of Alloy Steel Seamless Pipes
NPS [DN] Designator |
Tolerance, % from Specified |
|
Over |
Under |
1/8 to 2 1/2 [6 to 65] incl., all t/D ratios |
20.0% |
12.5% |
Above 2 1/2 [65], t/D < or = 5% |
22.5% |
12.5% |
Above 2 1/2 [65], t/D > 5% |
15.0% |
12.5% |
(t = Specified Wall Thickness; D = Specified Outside Diameter) |
|
|
Elongation Requirements of A335 Alloy Steel Seamless Pipes
| Calculated Minimum Elongation Values |
| Elongation in 2 in. or 50 mm, min % |
| Wall Thickness |
P5, P9, P11, P22 |
P91 |
| in. |
mm |
Longitudinal |
Transverse |
Longitudinal |
| 5/16 (0.312) |
8 |
|
30 |
20 |
20 |
| 9/32 (0.281) |
7.2 |
|
28 |
19 |
19 |
| 1/4 (0.250) |
6.4 |
|
27 |
18 |
18 |
| 7/32 (0.219) |
5.6 |
|
26 |
|
17 |
| 3/16 (0.188) |
4.8 |
|
24 |
|
16 |
| 5/32 (0.156) |
4 |
|
22 |
|
15 |
| 7/8 (0.125) |
3.2 |
|
21 |
|
14 |
| 3/32 (0.094) |
2.4 |
|
20 |
|
13 |
| 1/18 (0.062) |
1.6 |
|
18 |
|
12 |
Permissible Variations in Outside Diameter of A335 Alloy Steel Seamless Pipes
Outside Diameter at any point shall not vary from standard specified more than:
NPS [DN] Designator |
Over |
|
Under |
|
| |
in. |
mm |
in. |
mm |
| 1/8 to 1 1/2 [6 to 40], incl. |
1/64 (0.015) |
0.40 |
1/64 (0.015) |
0.40 |
| Over 1 1/2 to 4 [40 to 100], incl. |
1/32 (0.031) |
0.79 |
1/32 (0.031) |
0.79 |
| Over 4 to 8 [100 to 200], incl. |
1/16 (0.062) |
1.59 |
1/32 (0.031) |
0.79 |
| Over 8 to 12 [200 to 300], incl. |
3/32 (0.093) |
2.38 |
1/32 (0.031) |
0.79 |
| Over 12 [300] |
+/- 1% of the specified outside diameter |
Mechanical Tests Specified for A335 Alloy Steel Seamless Pipes
| Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test |
| For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot. For small lots, at least one pipe shall be tested. |
| For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe. |
| Notes for Hardness Test: |
P91 shall not have a hardness not exceeding 250 HB/265 HV [25HRC]. |
| Notes for Bend Test: |
For pipe whose diameter exceeds NPS 25 and whose diameter to wall thickness ratio is 7.0 or less shall be subjected to the bend test instead of the flattening test. |
|
Other pipe whose diameter equals or exceeds NPS 10 may be given the bend test in place of the flattening test subject to the approval of the purchaser. |
|
The bend test specimens shall be bent at room temperature through 180 without cracking on the outside of the bent portion. |
|
The inside diameter of the bend shall be 1 inch [25 mm]. |
| Hydrostatic Test |
Each length of pipe shall be Hydro tested, at option of manufacture nondestructive electric testing can be used. |
Chemical Composition of Other Grades of Specification A335
Grade |
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 |
0.50 |
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 |
0.50 |
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 |
0.50 |
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 |
0.50 |
2.65~3.35 |
0.80~1.60 |
P22 |
K21590 |
0.05~0.15 |
0.30~0.60 |
0.025 |
0.025 |
0.50 |
1.90~2.60 |
0.87~1.13 |
P91 |
K91560 |
0.08~0.12 |
0.30~0.60 |
0.020 |
0.010 |
0.20~0.50 |
8.00~9.50 |
0.85~1.05 |
P92 |
K92460 |
0.07~0.13 |
0.30~0.60 |
0.020 |
0.010 |
0.50 |
8.50~9.50 |
0.30~0.60 |
Note: (S)A335 P91 other chemical composition are : V 0.18~0.25; N 0.030~0.070; Ni ≤ 0.40; Al ≤ 0.04 ; Nb 0.06~0.10
(S)A335 P92 other chemical composition are : V 0.15~0.25; N 0.030~0.070; Ni ≤ 0.40; Al ≤ 0.04 ; Nb 0.04~0.09; W 1.5~2.00 ; B 0.001~0.006
A335 Grade P5, P9, P11, P12, P22, P91 Alloy Steel Seamless Pipe Price List
A335 P5 Alloy Steel Pipe
US $600-1200 / Ton ( FOB Price)
A335 P9 Alloy Steel Pipe
US $650-900 / Ton ( FOB Price)
A335 P11 Alloy Steel Pipe
US $600-700 / Long Ton ( FOB Price)
A335 P22 Alloy Steel Pipe
US $0-1000 / Ton ( FOB Price)
A335 P91 Alloy Steel Pipe
US $100000-30000000 / Unit ( FOB Price)
A335 P12 Alloy Steel Pipe
US $588-1058 / Ton ( FOB Price)
A335 Alloy Steel Pipe
US $650-900 / Ton ( FOB Price)
A335 Chrome Moly Pipe
US $500-1000 / Piece ( FOB Price)
A691 EFW Alloy Steel Pipe
US $500-900 / Ton ( FOB Price)
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