ASTM A335 P91 Pipe Vs ASTM A335 P91 Tube
ASTM A335 P91 pipes and tubes are common piping modules that are used interchangeably as per the requirements in the system. The items can be distinguished from each other based on certain key aspects.
What Is A335 P91 Material and Sa335 P91 Material
A335/Sa335 P91 material is part of a ferritic alloy steel grade. These items within this range possess high strength that don’t deteriorate with time. The chrome moly grade possesses superior corrosion resistance properties allowing the material within this grade to have excellent performance in stress-induced environments. The chemical content also allows these modules to showcase enhanced resistance to oxidation at elevated temperatures. The versatile grade also exhibits good creep strength and inhibits pitting in marine environments.
How Do You Weld a P91 Chrome Pipe?
P91 grade is a high-cost grade material that presents some challenges in the welding process. The P91 chrome pipe is produced by preheating the joint at temperatures between 400 to 500 degrees F. This eliminates any moisture and reduces hydrogen content to eliminate embrittlement caused after finishing the weld. To weld, the metal low-hydrogen filler material is utilized, and the module is welded in place by maintaining the correct temperatures. The material can be controlled cooled and stress relieved to restore the ductility of the grade.
Table of Content
ASTM A335 P91 Pipe Material Specification | ASTM / ASME A335 /SA 335 |
---|---|
Grade | P91 |
Schedules | Schedule 40, Schedule 80, Schedule 160, Schedule XS, Schedule XXS Supplier/ Manufacturer |
Dimensions | ASME, API and ASTM |
Type | ERW / Fabricated / Seamless / Welded / LSAW Pipes |
Coating Standard | SY/T0413-2002, DIN 30670, DIN 30671, DIN 30678, etc. |
Material Test Certificate (MTC) provided by Suppliers | Ultrasonic Testing (UT), IBR, EIL, NDE, ISO 14001:2015, Radiographic Testing (RT), ISO 9001:2005, PED |
Size | 1/2” NB upto 36” NB |
Length | Max18 Meters, Min 3 Meters, or according to customer’s requirement |
Value Added Services Provided by Supplier | Beveling, Cutting, Polishing, Ultrasonic Testing, Destructive, Threading, Non Destructive |
Thickness | 3 to12mm |
Coating Thickness | Three Layer Polyethylene Coating (2 to 4.5mm) |
Form | Round and Hydraulic |
Marking |
|
Pipe Marking | All Alloy Steel Tubes and Pipes are marked as follows: Supplier or Manufacturer Name, Standard, Grade, OD, Length, Thickness, Heat No. |
End | Beveled End, Plain End, Treaded |
ASTM A335 P91 Pipe Suppliers offer various shapes | Semi-Rhomboid, Triangle, Oval, Rectangle, Elliptical, Square, Rhomboid, Hollow, Hollow, Round, Semi-Round, Semi-oval |
Mo, % | C, % | V, % | Mn, % | Ni, % | P, % | N, % | S, % | Al, % | Si, % | Nb, % | Cr, % |
---|---|---|---|---|---|---|---|---|---|---|---|
0.85-1.05 | 0.08-0.12 | 0.18-0.25 | 0.3-0.6 | 0.4 max | 0.02 max | 0.03-0.07 | 0.01 max | 0.04 max | 0.2-0.5 | 0.06-0.10 | 8.0-9.5 |
Yield Properties, MPa | Tensile Properties, MPa | Hardness, HB | Elongation, % |
---|---|---|---|
415 min | 585 min | 250 max | 20 min |
UNS | ASTM | Equivalent material | ASME | JIS |
---|---|---|---|---|
K91560 | A335 P91 | T91, K90901, X10CrMoVNb9-1, 1.4903 | SA335 P91 | JIS G 3458 |
ASTM A335/SA335 Alloy Steel Pipe P-91 | |
Yield Strength, min., psi | |
MPa | 415 |
ksi | 60 |
Tensile Strength, min., psi | |
ksi | 85 |
MPa | 585 |
ASTM A450 | Hot rolled | Outside Diameter, mm | Tolerance, mm |
---|---|---|---|
101.6<OD≤190.5 | +0.4/-1.2 | ||
OD≤101.6 | +0.4/-0.8 | ||
190.5<OD≤228.6 | +0.4/-1.6 | ||
Cold Drawn | Outside Diameter, mm | Tolerance, mm | |
63.5≤OD<76.2 | ±0.30 | ||
OD<25.4 | ±0.10 | ||
101.6<OD≤190.5 | +0.38/-0.64 | ||
25.4≤OD≤38.1 | ±0.15 | ||
190.5<OD≤228.6 | +0.38/-1.14 | ||
38.1<OD<50.8 | ±0.20 | ||
76.2≤OD≤101.6 | ±0.38 | ||
50.8≤OD<63.5 | ±0.25 | ||
ASTM A530 & ASTM A335 | NPS | Outside Diameter, inch | Tolerance, mm |
4<OD≤8 | +1.59/-0.79 | ||
1/8≤OD≤1-1/2 | ±0.40 | ||
OD>12 | ±1% | ||
1-1/2<OD≤4 | ±0.79 | ||
8<OD≤12 | +2.38/-0.79 |
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) | Normalize and Temper | ***** | 1250 [675] |
Full or Isothermal Anneal | |||
Subcritical Anneal (P5c only) | ***** | 1325 - 1375 [715 - 745] | |
P9 | Normalize and Temper | ***** | 1250 [675] |
Full or Isothermal Anneal | |||
P11 | Normalize and Temper | ***** | 1200 [650] |
Full or Isothermal Anneal | |||
P22 | Normalize and Temper | ***** | 1250 [675] |
Full or Isothermal Anneal | |||
P91 | Quench and Temper | 1900-1975 [1040 - 1080] | 1350-1470 [730 - 800] |
Normalize and Temper | 1900-1975 [1040 - 1080] | 1350-1470 [730 - 800] |
Surface Finish | External Surface (OD) | Internal Surface (ID) | |||
---|---|---|---|---|---|
Roughness Average (RA) | Roughness Average (RA) | ||||
μm | μ inch | μm | μ inch | ||
MP | Mechanical Polish | 0.8 | 32 | 1.0,0.8,0.6,0.5 | 40,32,25,20 |
AP | Annealed & Pickled | 1.0 or Not defined | 40 or Not defined | Not defined | Not defined |
EP | Electro Polish | 0.8 | 32 | 0.38,0.25,0.20;0.13 | 15,10,7,5 |
BA | Beight Annealed | 0.8 | 32 | 1.0,0.8,0.6,0.5 | 40,32,25,20 |
Types of Material | Grades Chart | Standard Code Chart |
---|---|---|
Low Alloy Steel Tubing | 4130X, 4140, 4130 | ASME SA 519/ ASTM A519 |
High Temp Alloy Steel Smys Pipes (Ferritic) | 13CrMo4-5 10CrMo9-10 X10CrMoVNb9-1 15NiCuMoNb5-6-4 | EN10216-2 |
High Temperature AS Seamless Pipes (Ferritic) | P22, P5, P1, P91, P9, P17, P11, P92, P12 | ASME SA 335/ASTM A335 |
Alloy Steel IBR approved Heat-Exchanger Tubes, Superheater, Seamless Austentic and Ferritic Boiler | T9, T23, T1, T5, T2, T12, T92, T91, T22, T11 | ASME SA 213/ ASTM A213 |
NPS [DN] Designator | Tolerance, % from Specified | |
---|---|---|
Under | Over | |
Above 2 1/2 [65], t/D < or = 5% | 12.5% | 22.5% |
1/8 to 2 1/2 [6 to 65] incl., all t/D ratios | 12.5% | 20.0% |
Above 2 1/2 [65], t/D > 5% | 12.5% | 15.0% |
(t = Specified Wall Thickness; D = Specified Outside Diameter) |
OD mm | in. | Pipe WT mm | Kg/m | Sch |
---|---|---|---|---|
13.72 | 1/4 | 1.65 | 0.50 | 10S |
13.72 | 1/4 | 2.24 | 0.64 | 40S |
13.72 | 1/4 | 3.02 | 0.81 | 80S |
17.15 | 3/8 | 1.65 | 0.64 | 10S |
17.15 | 3/8 | 2.31 | 0.86 | 40S |
17.15 | 3/8 | 3.20 | 1.12 | 80S |
21.34 | 1/2 | 2.11 | 1.02 | 10S |
21.34 | 1/2 | 2.77 | 1.29 | 40S |
21.34 | 1/2 | 3.73 | 1.65 | 80S |
26.67 | 3/4 | 2.11 | 1.30 | 10S |
26.67 | 3/4 | 2.87 | 1.71 | 40S |
26.67 | 3/4 | 3.91 | 2.23 | 80S |
33.40 | 1 | 2.77 | 2.13 | 10S |
33.40 | 1 | 3.38 | 2.54 | 40S |
33.40 | 1 | 4.55 | 3.29 | 80S |
33.40 | 1 | 6.352) | 4.30 | 160 |
42.16 | 1¼ | 2.77 | 2.73 | 10S |
42.16 | 1¼ | 3.56 | 3.44 | 40S |
42.16 | 1¼ | 4.85 | 4.53 | 80S |
42.16 | 1¼ | 6.352) | 5.69 | 160 |
48.26 | 1½ | 2.77 | 3.16 | 10S |
48.26 | 1½ | 3.68 | 4.11 | 40S |
48.26 | 1½ | 5.08 | 5.49 | 80S |
60.33 | 2 | 2.77 | 3.99 | 10S |
60.33 | 2 | 3.91 | 5.52 | 40S |
60.33 | 2 | 5.54 | 7.60 | 80S |
60.33 | 2 | 8.742) | 11.29 | 160 |
73.03 | 2½ | 3.05 | 5.35 | 10S |
73.03 | 2½ | 5.16 | 8.77 | 40S |
73.03 | 2½ | 7.01 | 11.59 | 80S |
88.90 | 3 | 3.05 | 6.56 | 10S |
88.90 | 3 | 5.49 | 11.47 | 40S |
88.90 | 3 | 7.62 | 15.51 | 80S |
88.90 | 3 | 11.132) | 21.67 | 160 |
101.60 | 3½ | 3.05 | 7.53 | 10S |
101.60 | 3½ | 5.74 | 13.78 | 40S |
101.60 | 3½ | 8.08 | 18.92 | 80S |
114.30 | 4 | 3.05 | 8.50 | 10S |
114.30 | 4 | 6.02 | 16.32 | 40S |
114.30 | 4 | 8.56 | 22.67 | 80S |
114.30 | 4 | 13.492) | 34.05 | 160 |
141.30 | 5 | 6.55 | 22.10 | 40S |
141.30 | 5 | 9.53 | 31.44 | 80S |
141.30 | 5 | 15.882) | 49.87 | 160 |
168.28 | 6 | 3.4 | 14.04 | 10S |
168.28 | 6 | 7.11 | 28.69 | 40S |
168.28 | 6 | 10.97 | 43.21 | 80S |
168.28 | 6 | 14.27 | 54.75 | 120 |
168.28 | 6 | 18.262) | 68.59 | 160 |
219.08 | 8 | 8.18 | 43.20 | 40S |
219.08 | 8 | 12.7 | 65.63 | 80S |
219.08 | 8 | 18.23 | 91.30 | 120 |
219.08 | 8 | 23.012) | 112.97 | 160 |
NB | OD (mm) | DN | Pipe Schedule | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Schedule 60 | Schedule 5 | Schedule 100 | Schedule 10 | Schedule 120 | Schedule 20 | Schedule 160 | Schedule 30 | Schedule 80 | Schedule 40 | |||
3/4" | 26.67 | 20 | x | 1.65 | x | 2.11 | 4.32 | x | 5.56 | 2.41 | 3.91 | 2.87 |
1" | 33.40 | 25 | x | 1.65 | x | 2.77 | 5.08 | x | 6.35 | 2.90 | 4.55 | 3.38 |
1.1/2" | 48.26 | 40 | x | 1.65 | x | 2.77 | 5.72 | x | 7.14 | 3.18 | 5.08 | 3.68 |
2" | 60.32 | 50 | x | 1.65 | x | 2.77 | 6.35 | x | 8.74 | x | 5.54 | 3.91 |
2.1/2" | 73.02 | 65 | x | 2.11 | x | 3.05 | 7.62 | x | 9.53 | x | 7.01 | 5.16 |
3" | 88.9 | 80 | x | 2.11 | x | 3.05 | 8.89 | x | 11.13 | x | 7.62 | 5.49 |
4" | 114.3 | 100 | x | 2.11 | x | 3.05 | 11.10 | x | 13.49 | x | 8.56 | 6.02 |
5" | 141.3 | 125 | x | 5.77 | x | 3.4 | 12.70 | x | 15.88 | x | 9.53 | 6.55 |
6" | 168.27 | 150 | x | 2.77 | x | 3.4 | 14.27 | x | 18.26 | x | 10.97 | 7.11 |
8" | 219.07 | 200 | 12.7 | 2.77 | 15.06 | 3.76 | 18.24 | 6.35 | 23.01 | 7.04 | 12.70 | 8.18 |
10" | 273.05 | 250 | 12.7 | 3.4 | 18.24 | 4.19 | 21.41 | 6.35 | 28.58 | 7.8 | 15.06 | 9.27 |
12" | 323.85 | 300 | 12.7 | 4.19 | 21.41 | 4.57 | 25.40 | 6.35 | 33.32 | 8.38 | 17.45 | 10.31 |
NB | OD (inches) | DN | Pipe Schedule | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Schedule 5 | Schedule 10 | Schedule 20 | Schedule 30 | Schedule 40 | Schedule 60 | Schedule 80 | Schedule 100 | Schedule 120 | Schedule 160 | |||
3" | 3.5 | 80 | 0.083 | 0.12 | x | x | 0.216 | x | x | 0.35 | x | 0.438 |
3/4" | 1.05 | 20 | 0.065 | 0.11 | x | 0.095 | 0.113 | x | x | 0.17 | x | 0.219 |
4" | 4.5 | 100 | 0.083 | 0.12 | x | x | 0.237 | x | x | 0.437 | x | 0.531 |
1" | 1.315 | 25 | 0.065 | 0.11 | x | 0.114 | 0.133 | x | x | 0.2 | x | 0.25 |
5" | 5.563 | 125 | 0.109 | 0.12 | x | x | 0.258 | x | x | 0.5 | x | 0.625 |
1.1/2" | 1.9 | 40 | 0.065 | 0.11 | x | 0.125 | 0.145 | x | x | 0.225 | x | 0.281 |
6" | 6.625 | 150 | 0.109 | 0.13 | x | x | 0.28 | x | x | 0.562 | x | 0.719 |
2" | 2.375 | 50 | 0.065 | 0.12 | x | x | 0.154 | x | x | 0.25 | x | 0.344 |
10" | 10.75 | 250 | 0.134 | 0.17 | 0.25 | 0.307 | 0.365 | 0.5 | 0.718 | 0.843 | 1.0 | 1.125 |
2.1/2" | 2.875 | 65 | 0.083 | 0.12 | x | x | 0.203 | x | x | 0.3 | x | 0.375 |
8" | 8.625 | 200 | 0.109 | 0.15 | 0.25 | 0.277 | 0.322 | 0.406 | 0.593 | 0.718 | 0.812 | 0.906 |
12" | 12.75 | 300 | 0.165 | 0.18 | 0.25 | 0.33 | 0.406 | 0.5 | 0.843 | 1.0 | 1.125 | 1.312 |
Calculated Minimum Elongation Values | ||
---|---|---|
Elongation in 2 in. or 50 mm, min % | ||
Wall Thickness | P91 | |
in. | mm | Longitudinal |
3/16 (0.188) | 4.8 | 16 |
5/16 (0.312) | 8 | 20 |
5/32 (0.156) | 4 | 15 |
9/32 (0.281) | 7.2 | 19 |
3/32 (0.094) | 2.4 | 13 |
1/4 (0.250) | 6.4 | 18 |
1/18 (0.062) | 1.6 | 12 |
7/32 (0.219) | 5.6 | 17 |
7/8 (0.125) | 3.2 | 14 |
3LPE Coated
Liquid Epoxy (LE)
FBE Coated
SIZE | KG PER MTR | THK | Rates per KG | ||||
---|---|---|---|---|---|---|---|
DN | OD | INCH x SCH | A335 GR.91 | ||||
USD | INR | DIR | |||||
15 | 21.3 | 1/2 NB X SCH 80 | 1.64 | 3.73 | 12.14 | 850.00 | 42.29 |
1/2 NB X SCH 5s | 0.81 | 1.65 | 12.14 | 850.00 | 42.29 | ||
1/2 NB X SCH 160 | 1.98 | 4.78 | 12.14 | 850.00 | 42.29 | ||
1/2 NB X SCH 10s | 1.02 | 2.11 | 12.14 | 850.00 | 42.29 | ||
1/2 NB X SCH XXS | 2.59 | 7.47 | 12.14 | 850.00 | 42.29 | ||
1/2 NB X SCH 40/STD | 1.29 | 2.77 | 12.14 | 850.00 | 42.29 | ||
1/2 NB X SCH 80s | 1.64 | 3.73 | 12.14 | 850.00 | 42.29 | ||
1/2 NB X SCH 40s | 1.29 | 2.77 | 12.14 | 850.00 | 42.29 | ||
20 | 26.7 | 3/4 NB X SCH 80 | 2.23 | 3.91 | 12.14 | 850.00 | 42.29 |
3/4 NB X SCH 5s | 1.03 | 1.65 | 12.14 | 850.00 | 42.29 | ||
3/4 NB X SCH 160 | 2.94 | 5.56 | 12.14 | 850.00 | 42.29 | ||
3/4 NB X SCH 10s | 1.30 | 2.11 | 12.14 | 850.00 | 42.29 | ||
3/4 NB X SCH XXS | 3.69 | 7.82 | 12.14 | 850.00 | 42.29 | ||
3/4 NB X SCH 40 | 1.71 | 2.87 | 12.14 | 850.00 | 42.29 | ||
3/4 NB X SCH 80s | 2.23 | 3.91 | 12.14 | 850.00 | 42.29 | ||
3/4 NB X SCH 40s | 1.71 | 2.87 | 12.14 | 850.00 | 42.29 |
Size | JSL Make | MSL Make | ISMT make |
---|---|---|---|
1″ | 3,904.41 | 3,897.06 | 3,889.71 |
1/2″ | 4,272.06 | 4,264.71 | 4,257.35 |
1.25″ | 3,860.29 | 3,852.94 | 3,845.59 |
3/4″ | 4,051.47 | 4,044.12 | 4,036.76 |
1.5″ | 3,757.35 | 3,750.00 | 3,742.65 |
AS P91 Pipes | ASTM A335 P91 Alloy Steel Pipes |
ASTM A335 P91 Pipes | UNS K91560 Chrome Pipes |
ASTM A335 P91 Steel Pipes | NBR 5603 P91 High Pressure Pipes |
Sa335 P91 Alloy Pipes | ASTM A335 gr P91 Round Pipes |
Sa 335 P91 Chrome Pipes | SA335 gr P91 High Temperature Seamless Pipes |
ASTM A335 Gr P91 Pipes | AS ASTM A335 gr P91 Seamless Pipes |
Sa335 P91 Pipes | SA335P91 Boiler Steel Pipes |
ASTM A335 P91 Type 2 Pipes | ASTM A335 grade P91 Steel Pipes |
A335 P91 Material | Low Alloy ASTM A335 P91 Pipe Material |
Chrome Moly Alloy A335/SA335 Grade P91 Pipes | ASTM A335 P91 Alloy Steel Smls Pipes |
ASTM A335 P91 Pipes | Ferritic Alloy Steel ASTM A335P91 Pipes |
P91 Seamless Pipes | Steel Grade P91 Chrome Moly Pipes |
SA 335 gr P91 Seamless Pipes | Alloy P91 ASTM A335 High Pressure Pipes |
ASTM A335 P91 steel Material | Alloy Steel SA 335 P91 Smls Pipes |
SA335 P91 IBR Pipes | Steel Grade P91 ASTM A335 Pipes |
Searching for
ASTM A335 P91 Pipe Suppliers in your country? Checklist of material we export in the following areas.
Sa335 P91 Alloy Pipe
Bangladesh, Jakarta -Indonesia, Dubai, Los Alamos -Mexico, Hong Kong, Turkey, Argentina, Germany, China, Oman, Saudi Arabia (KSA).
ASTM A335 P91 Type 2 Pipe
Malaysia, Poland, Romania, Indonesia, Malaysia, Iran, Qatar, New Zealand, Brazil, Netherlands, United Arab Emirates (UAE).
SA335 P91 IBR Pipe
USA, Chile, Ellington -United States, Canada, Sweden, United States, Greece, Singapore, Vietnam, Mexico, Denmark, Thailand, Finland.
SA335P91 Boiler Steel Pipe
Russia, Belgium, Norway, Egypt, Bahrain, Philippines, South Korea, Peru, Malaysia, Tehran -Iran, Colombia, Italy.
ASME A335 P91 Pipe
Spain, Jakarta, Europe, Australia, Jordan, Dammam -KSA, Japan, Istanbul -Turkey, NY 12203 (USA), Dubai -UAE, Kuala Lumpur.
ASTM A335 Gr P91 Pipe
France, Singapore, Taiwan, South Africa, Portugal, Morocco, Czechia, Kuwait, Austria, United Kingdom (UK), Nigeria.