ASTM A335 P5 Pipe is a chrome moly pipe which is intended for high temperature services. There are different grades that indicate the pressure capacities.

ASTM A335 P5 Pipes
SA335 Gr P5 P5 Steel Pipes

Hi-tech Metal & Tubes is a supplier and stockiest of different types of these category. As one of the leading P5 Pipes suppliers we manufacture these pipes in different shapes and sizes as well. The ASTM A335 P5 Pipes can range from ½ inches to 36 inches in diameter and the outer diameter can range from 19.05mm to 114.3mm. Since we are a SA335 P5 Pipes suppliers we also supply them in plain end, beveled end and treaded types. The shapes could vary such as round, square, rectangular or hydraulic. The SA335 P5 Material has carbon, chromium, molybdenum, silicon and phosphorus in its composition. So the pipes gets maximum strength, corrosion resistance, pressure containment capacities and its high yield strength through this combination. There are seamless and welded pipes in this range as well. The A335 P5 Welded Pipes is used at applications with heavy welding requirements. We also supply the seamless pipes for precision application. The ASTM A335 P5 Alloy Steel Pipes is used in applications like the oil and gas, chemical industries, thermal and nuclear power plants. You can get any type of ASTM A335 Grade P5 pipes from us.


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ASTM A335 P91 Alloy Steel Seamless Pipe are tubular with higher rates, than standard carbon steel pipes, of alloying components as Molybdenum, Chromium, Nickel. Actually, the ASTM A335 P5 Pipe covers “low-alloy” steel pipes, i.e. pipes that have a total amount of alloying components less than 5%.


Specification chart of ASTM A335 P5 Pipes

SA335 P5 Standard ASTM A335 P5, SA335 P5
SA335 Gr P5 Size 1/2 Inch NB to 36 Inch NB
A335 Gr P5 Thickness 3 To 12 Mm
P5 Steel Pipes Schedules Schedule 40, 80, 160, XS, XXS
AS A335 P5 Tolerance Cold drawn pipe: +/-0.1mm
Cold rolled pipe: +/-0.05mm
SA335 P5 Type Seamless / ERW / Welded / Fabricated

SA335 Grade P5 Equivalent grades

ASTM ASME JIS G 3458 UNS BS DIN ISO ABS NK LRS
A335 P5 SA335 P5 STPA 25 K41545 3604 P1 625 2604 III TS37 ABS 14

Chemical Compatibility of A335 Gr P5 Pipes

Alloy Steel P5 C Cr Mn Mo P S Si
0.05 – 0.15 4.00 – 6.00 0.30 – 0.60 0.45 – 0.65 0.025 max 0.025 max 0.50 – 1.00

P5 Seamless Pipes Mechanical Behaviour

Tensile Strength High Yield Strength Elongation
415 min 205 min 30 min

AS A335 P5 Size In Inch

Size NPS Pipe O.D. Wall Thickness Pipe I.D. 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