ASTM A335 P91 Pipe

SA 335 gr P91 Seamless Pipe and UNS K91560 Chrome Pipe supplier in India

The products of grade A335 are produced following all standard ASME, ASTM, and API standards. The ASTM A335 P91 Pipe is made up of major constituents of 0.40% of nickel, 8%-9.50% of chromium, 0.85%-1.05% of molybdenum, 0.30%-0.60%. Apart from these, there are also few elements, which are present in small traces. The ASTM A335 Grade P91 Steel Pipe is specially designed, with exceptional strength and corrosion resistance properties. These pipes possess good creep resistances properties as it is made by normalizing at 1050 °C. The Low Alloy ASTM A335 P91 Pipe Material comprises of excellent alloying materials. These materials give its products exceptional hardness and enhanced mechanical properties. The Steel Grade P91 Chrome Moly Pipe is an example of this low alloy pipe material. These pipes have a tensile strength of a minimum 585Mpa and yield strength of a minimum 415Ksi. UNS K91560 Chrome Pipe can be easily elongated by a minimum of 20% and still have good working potential. These pipes unlike, the other pipes in this grade, cannot exceed hardness by 250 HB. This is possible as the ASTM A335 P91 Alloy Steel Pipe has high-oxidation temperatures and can be produced with less thickness compared to its predecessors. This reduces welding time as well as reduces requirements of filler material. We are the leading A335 P91 Pipe suppliers in India. We thrive to supply high-quality products across the country at reasonable rates.

ASTM A335 P91 Pipe

The P91 Seamless Pipe is produced without the requirement of welds and is very strong from the outset. These pipes are not dimensionally accurate but they give better performance compared to the welded pipes. The SA 335 gr P91 Seamless Pipe is specialized for large diameter pipe sizes. The material used in making these pipes makes them a little expensive. These pipes are available in sizes of 1/8NB to 24NB. AS ASTM A335 gr P91 Seamless Pipe is available with an outer diameter of 19.05mm-114.3mm. They can be availed in rectangular, square, and round, hydraulic, and custom shapes. The SA335 gr P91 High Temperature Seamless Pipe, compared to the pipes of the previous grade can endure high temperatures. These pipes can suffice in temperatures ranging up to 600 degrees C. An NBR 5603 P91 High Pressure Pipe is widely used in industries and refineries. These pipes are coated with a layer of epoxy, Fpe, galvanized, or annealed to protect the pipe from corrosion. This allows the Alloy P91 ASTM A335 High Pressure Pipe to be easily cleaned and fixed in case of any breaks or leaks suffered by the pipe. These pipes are available in lengths up to 16000mm, which can be customized on request. Steel Grade P91 ASTM A335 Pipe is widely used in oil services, petrochemical industries, boilers, heaters, power generation, refineries, reheat lines, etc. The SA335 P91 IBR Pipe is manufactured following all material grades, dimensions, and pressure classes set by the Indian Boiler Regulation in the country. We are amongst the P91 Pipe suppliers who can customize all our products in different shapes and sizes as per your requirements.

The SA335P91 Boiler Steel Pipe is widely used in industrial boilers and in different high-temperature and pressure systems. They are available in lengths of 4,000mm to 26,000mm depending on the size of the pipe. The ASTM A335 gr P91 Round Pipe is available in single, double or cut end lengths. These pipes come with a plain, threaded or beveled end to protect them during transportation. The Ferritic Alloy Steel ASTM A335P91 Pipe is available with a wall thickness of 3mm-12mm. They are available in different schedules of sizes 40, 80, 160, XS, and XXS. The ASTM A335 P91 Alloy Steel Smls Pipe tolerances are increased by 0.0lmm when it is cold-drawn and 0.05mm when it is cold-rolled. All international and national standards are followed while producing the Alloy Steel SA 335 P91 Smls Pipe. These pipes possess good strength, which doesn’t degrade with time. The pipes are highly durable and don’t require high-maintenance. We make use of the best ASTM A335 P91 steel Material and the latest technology while producing all our products. If you have any questions or want to know more about our ASTM A335 P91 Pipe, contact us.

Industrial NBR 5603 P91 High Pressure Pipe and ASTM A335 P91 Alloy Steel Pipe stockist & distributor, with a huge range of standard ASTM A335 P91 Material


ASTM A335 P91 Pipe Specification

Distributor & supplier of P91 Seamless Pipe and ASTM A335 gr P91 Round Pipe, View standard SA335 P91 IBR Pipe length in meter and sizes chart as per ANSI/ ASME B36.10M

Size 1/2 to 36 Inch NB
Standard ASTM A335 P91, SA335 P91
Material Thickness 3 To 12 mm
Schedules SCH 40, SCH 160, SCH 80, SCH XXS, SCH XS, All Schedules
Tolerance Cold drawn pipe: +/-0.1mm
Cold rolled pipe: +/-0.05mm
Type ERW / Seamless / Welded / Fabricated
Craft Cold rolled and Cold drawn
Length Standard
Double &
In Cut length also.
pipe available in Form of Round, Rectangular, Square, Hydraulic
End Beveled End, Plain End, Treaded

UNS K91560 Chrome Pipe Surface Finish

Surface Finishes: Bare, Mill Varnish, Oiled, Galv, FBE Dual, FBE, 3LPE, Coal Tar, 3LPP, Concrete Coating and Tape Wrap.
End Finishes: Square Cut, Beveled, Threaded & Coupled.

ASTM A335 gr P91 Round Pipe Tolerance

Supplier & exporter of SA335 gr P91 High Temperature Seamless Pipe and Ferritic Alloy Steel ASTM A335 P91 Pipe, Check newly updated SA335P91 Boiler Steel Pipe price list

ASTM A450 Hot rolled Outside Diameter, mm Tolerance, mm
Outer Diameter≤101.6 +0.4/-0.8
101.6<Outer Diameter≤190.5 +0.4/-1.2
190.5<Outer Diameter≤228.6 +0.4/-1.6
Cold Drawn Outside Diameter, mm Tolerance, mm
Outer Diameter<25.4 ±0.10
25.4≤Outer Diameter≤38.1 ±0.15
38.1<Outer Diameter<50.8 ±0.20
50.8≤Outer Diameter<63.5 ±0.25
63.5≤Outer Diameter<76.2 ±0.30
76.2≤Outer Diameter≤101.6 ±0.38
101.6<Outer Diameter≤190.5 +0.38/-0.64
190.5<Outer Diameter≤228.6 +0.38/-1.14
ASTM A530 & ASTM A335 NPS Outside Diameter, inch Tolerance, mm
1/8≤Outer Diameter≤1-1/2 ±0.40
1-1/2<Outer Diameter≤4 ±0.79
4<Outer Diameter≤8 +1.59/-0.79
8<Outer Diameter≤12 +2.38/-0.79
Outer Diameter>12 ±1%

UNS K91560 Chrome Pipe Size Chart

Outer Diameter * Thickness in MM Outer Diameter * Thickness in MM Outer Diameter * Thickness in MM
38.1 * 3.2 57.0 * 4.9 76.2 * 4.0
38.1 * 4.0 57.0 * 6.3 76.2 * 5.0
38.1 * 6.3 57.0 * 7.9 76.2 * 6.3
42.4 * 3.2 60.3 * 3.2 82.5 * 4.5
42.4 * 4.0 60.3 * 3.6 88.9 * 3.2
44.5 * 3.2 60.3 * 5.0 88.9 * 3.6
44.5 * 6.3 63.5 * 3.2 88.9 * 4.0
48.3 * 3.2 63.5 * 3.6 101.6 * 3.6
48.3 * 3.6 63.5 * 4.0 101.6 * 4.5
50.8 * 4.5 63.5 * 6.3 101.6 * 6.3
51.0 * 3.2 63.5 * 7.9 114.3 * 3.6
51.0 * 3.6 70.0 * 3.2 114.3 * 5.0
51.0 * 6.3 70.0 * 3.6 139.7 * 4.0
57.0 * 3.2 70.0 * 6.3 139.7 * 5.0
57.0 * 3.6 76.2 * 3.6 139.7 * 6.3

ASTM A335 gr P91 Round Pipe Weight Chart

Before you order Don't forget to compare our price list with other SA 335 P91 Alloy Steel Smls Pipe and P91 Pipe suppliers and according to ASME B36.10 and B36.19, Trident Procure material from trusted manufacturers
Size Nominal Pipe Size Pipe Outer Diameter Wall Thickness Pipe Inner Diameter Weight per Foot
1/2 0.84 0.109 0.622 0.85
0.147 0.546 1.09
0.188 0.464 1.31
0.294 0.252 1.72
3/4 1.05 0.113 0.824 1.13
0.154 0.742 1.48
0.219 0.612 1.95
0.308 0.434 2.44
1 1.315 0.133 1.049 1.68
0.179 0.957 2.17
0.250 0.815 2.85
0.358 0.599 3.66
1 1/4 1.66 0.140 1.380 2.27
0.191 1.278 3.00
0.250 1.160 3.77
0.382 0.896 5.22
1 1/2 1.90 0.145 1.610 2.72
0.200 1.500 3.63
0.281 1.338 4.86
0.400 1.100 6.41
2 2.375 0.109 2.157 2.64
0.154 2.067 3.66
0.218 1.939 5.03
0.250 1.875 5.68
0.281 1.813 6.29
0.344 1.687 7.47
0.436 1.503 9.04
2 1/2 2.875 0.120 2.635 3.53
0.203 2.469 5.80
0.216 2.443 6.14
0.250 2.375 7.02
0.276 2.323 7.67
0.375 2.125 10.02
0.552 1.771 13.71
3 3.50 0.120 3.260 4.34
0.156 3.188 5.58
0.172 3.156 6.12
0.188 3.124 6.66
0.216 3.068 7.58
0.250 3.000 8.69
0.281 2.938 9.67
0.300 2.900 10.26
0.438 2.624 14.34
0.600 2.300 18.6
3 1/2 4.0 0.120 3.760 4.98
0.226 3.548 9.12
0.250 3.500 10.02
0.281 3.438 11.17
0.318 3.364 12.52
0.636 2..728 22.87
4 4.5 0.120 4.260 5.62
0.156 4.188 7.24
0.188 4.124 8.67
0.203 4.094 9.32
0.219 4.062 10.02
0.237 4.026 10.80
0.250 4.000 11.36
0.281 3.938 12.67
0.312 3.876 13.97
0.337 3.826 15.00
0.438 3.624 19.02
0.531 3.438 22.53
0.674 3.152 27.57
5 5.563 0.188 5.187 10.80
0.219 5.125 12.51
0.258 5.047 14.63
0.281 5.001 15.87
0.312 4.939 17.51
0.344 4.875 19.19
0.375 4.813 20.80
0.500 4.563 27.06
0.625 4.313 32.99
0.750 4.063 38.59
6 6.625 0.109 6.407 7.59
0.134 6.357 9.30
0.156 6.313 10.79
0.188 6.249 12.94
0.203 6.219 13.94
0.219 6.187 15.00
0.250 6.125 17.04
0.280 6.065 18.99
0.312 6.001 21.06
0.344 5.937 23.10
0.375 5.875 25.05
0.432 5.761 28.60
0.500 5.625 32.74
0.562 5.501 36.43
0.625 5.375 40.09
0.719 5.187 45.39
0.864 4.897 53.21
1.000 4.625 60.13
1.125 4.375 66.14

Chemical Equation of SA335 P91 IBR Pipe

C Mn P S Si Cr Mo V N Ni Al Nb
0.08 To 0.12 0.3 To 0.6 0.02 Maximum 0.01 Maximum 0.2 To 0.5 8.0 To 9.5 0.85 To 1.05 0.18 To 0.25 0.03 To 0.07 0.4 Maximum 0.04 Maximum 0.06 To 0.10

ASTM A335 P91 Alloy Steel Pipe Mechanical Properties

Tensile Strength Yield Strength Elongation Hardness
585 Minimum 415 Minimum 20 Minimum 250 maximum

Equivalent Material of P91 Seamless Pipe

We can supply P91 Chrome Moly Pipe and ASTM A335 gr P91 Seamless Pipe in custom cut to required lengths
UNS ASTM Equivalent material ASME
K91560 A335 P91 K90901, T91, 1.4903, X10CrMoVNb9-1 SA335 P 91