Alloy Steel Seamless Tube for Application of Power Plant Bolers and
Heat Exchanger
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.
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.
Alloy Steel Tubes (ASME SA213 Grade T11)
Alloy Steel Tubes (ASME SA213 Grade T11) manufactured and supplied
by us are of ASME SA213 Grade. Our expertise lies in offering these
in various sizes as well as other specifications as per the
required demands. These Alloy Steel Tubes find usage mainly in
different industrial applications.
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:
ASTM A335 PIPES | ASTM A335 GR P5 PIPES | ASTM A335 GR P9 PIPES |
ASTM A335 GR P11 PIPES | ASTM A335 GR P22 PIPES | ASTM A335 GR P91
PIPES
Size Range: 1/8" - 26"
Schedules: 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100,
120, 140, 160, XXH
Chemical Requirements
| 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 |
Permissible Variation in Wall Thickness
| 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) | | |
Mechanical Tests Specified
| 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. |
Alloy Steel Seamless Tube DIN 17175 15Mo3, 13CrMo44, 12CrMo195
Alloy steel tubes is a kind of steel alloyed tube with other elements in amounts
of between 1 and 50% by weight to improve its mechanical
properties.Alloying
elements are added to achieve certain properties in the material.
As a guideline,
alloying elements are added in lower percentages (less than 5%) to
increase
strength or harden ability or in larger percentages (over 5%) to
achieve special
properties, such as corrosion resistance or extreme temperature
stability.
Main Materials:
ASTM A335 (Seamless Ferritic Alloy-Steel Pipe for High-Temperature
Service)
ASTM A335 P1, P2, P5, P9, P12, P11, P22, P91
ASTM 213(Seamless Ferritic and Austenitic Alloy-Steel Boiler,
Superheater, and Heat-Exchanger Tubes)
ASTM A213 T1, T2, T11, T5, T9, T22, T23, T91, T92
ASTM A335 Seamless Ferritic Alloy Steel Pipe For High Temperature
| Mechanical Properties |
| Grade | Tensile strength(MPa) | Yield strength(MPa) | Elongation(%) | Impact energy(J) | Hardness |
| P11 | ≥ 415 | ≥ 205 | ≥ 22 | ≥ 35 | ≤ 163HB |
| P12 | ≥ 415 | ≥ 220 | ≥ 22 | ≥ 35 | ≤ 163HB |
| P22 | ≥ 415 | ≥ 205 | ≥ 22 | ≥ 35 | ≤ 163HB |
| P5 | ≥ 415 | ≥ 205 | ≥ 22 | ≥ 35 | ≤ 187HB |
| P91 | 585~760 | ≥ 415 | ≥ 20 | ≥ 35 | ≤ 250HB |
| P92 | ≥ 620 | ≥ 440 | ≥ 20 | ≥ 35 | 250HB |
ASTM A335 Seamless Ferritic Alloy Steel Pipe For High Temperature
ASTM A213 ASME SA213 Alloy Steel pipe
OTHER Materials:
ASTM A199 T9, T11, T22
ASTM A209 T1, T1A, T1B
ASTM A210 C
ASTM A250 T1
ASTM A369 FP1, FP2, FP12, FP22, FP9
ASTM A389 FP5
JIS G3455 STS49
JIS 3456 STPT49
JIS G3458 STPA12, STPA 22, STPA23, STPA24, STPA25, STPA26
JIS G3462 STBA12, 13, STBA20, STBA22, STBA23, STBA24, STBA25,
STBA26
JIS G3464 STBL39
SEW610 10CrMo910
DIN 1629 St52.4, St52
DIN 17175 15Mo3, 13CrMo44, 12CrMo195
GB9948 16Mn, 15MnV, 16Mo, 12CrMo, 15CrMo, 12Cr1MOV, Cr2Mo,
10MoWVNB, Cr5Mo, Cr9Mo,
GB/T8162/8163 Q345, 20Cr, 40Cr, 20CrMo, 25CrMo, 30CrMo, 35CrMo,
34Mn2V, 42CrMo, WB36
(15NICUMOB5) and 12Cr2MoWVTiB(R102)
GB5310 12CrMoG, 15CrMoG, 12Cr1MoVG
GB/T 17396 27SiMn
GB18248 37Mn, 34Mn2V, 35CrMn, 34CrMo4
Type: Seamless and welded
Size:
Outer Diameter: 6mm~1420mm
Wall Thickness: 1mm~60mm
Length: 12m, 11.8m, 6m, 5.8m or as requirement. Max.:25m.pc
