ASTM A335 P91 Pipe

ASTM A335 P91 Pipes is a stainless steel pipes made up of different material grades but abide by the A335 specification. It is a chrome molly material alloy containing chromium, molybdenum and trace amounts of nickel and manganese.Steel India Co. is a manufacturer and P91 Pipes suppliers in large scale. Our customer base is large and we produce the different varieties of pipes in this range. There are different wall thicknesses and nominal sizes of these pipes and as one of the leading SA335 P91 Pipes suppliers we produce them all. The SA335 P91 Material has 9% chromium and 1% molybdenum in its composition.

The SA335 Grade P91 could be cold drawn or cold rolled. There are seamless, ERW, welded and fabricated pipes in this range. As one of the largest SA335 P91 Pipes manufacturers we produces these pipes in single random, double random and in cut length scales. There are different types of ends such as plain ends, beveled end and treaded ends to the pipes. Our A335 P91 Welded Pipes is good for heavy welding applications. The ASTM A335 P91 Alloy Steel Pipes can also come in different pressure classes and schedules. The applications are of high temperature service. You can always contact us to know more about our products.

SA335 P91 Pipes Standard Sizes And Schedule Specifications

Specialized in Sizes in Large Diameter
OD 19.05 milimeter – 114.3 milimeter
WT 2.0 milimeter – 14 milimeter
Length maximum 16000 milimeter
Form Square, Hydraulic, Round, Rectangular, Etc.
Standard SA335 P91, ASTM A335 P91
Thickness From 3 to 12 milimeter
Size From 1/2 NB upto 36 NB
Schedule Schedule 40, 80, 160, XS, XXS
Cold rolled pipe: +/-0.05 milimeter
Cold drawn pipe: +/-0.1 milimeter
Craft Cold drawn / Cold rolled
Type ERW / Fabricated / Seamless / Welded
Length Double Random, Cut Length, Single Random, .
Specialized in SA335 P91
Additional Testing NACE TM0177, H2 SERVICE, NACE MR0175, IBR, NACE TM0284, SSC TEST, HIC TEST, etc.

A335 Gr P91 Pipes Composition Standard

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

ASTM A335 P91 Pipes Mechanical Strength Table

Elongational Tensile Properties HB Yield Properties
20 585 250 415

Equivalent Material Grade Of SA335 Gr P91 Pipes

UNS ASTM Equivalent material ASME
K91560 A335 P91 K90901, T91, 1.4903, X10CrMoVNb9-1 SA335 P 91