ASME SA335 P91 / ASTM A335 P91 Seamless Pipe UNS K91560 Alloy Steel Seamless Tube
Yingke supplies ASME SA335 / ASTM A335 P1 P2 P5 P9 P11 P12 P22 P91 P92 Alloy Steel Tube Seamless Pipe & Fittings
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ASME SA335 / ASTM A335 Grade P91 Alloy Steel Seamless Pipes, SA335 p91 Pipes Manufacturers, Exporters, Stockists & Suppliers.
Seamless Pipes / ASTM A335 Gr P91 Alloy Steel Pipes Stockiest, Manufacturer, Exporter & Suppliers
Standard: NF,ISO,DIN,ANSI,JIS,BS,EN
p91 alloy pipe, p91 seamless pipe is a chrome moly alloy metal that contains excellent strength and temperature resistance. It is designed for enhanced creep strength, making it a creep strength enhanced ferritic (CSEF). This metal is made by normalizing at 1050 °C, air cooling to 200 °C, and then tempered through heating to 760 °C. This process is the main reason behind ASTM A335 P91 Pipe’s creep strength and durability. ASTM A335 P91 stands for the metal’s composition of 9% chrome and 1% molybdenum plus vanadium. The chrome increases temperature strength and oxidation resistance. The molybdenum increases the elasticity, resistance to wear, and high temperature creep strength
Specification Of ASME SA335 P91 / ASTM A335 P91 Pipe & Tubes:
| Size |
: |
NPS 1/4” to NPS 36” |
| Standards |
: |
ASTM A335, ASME SA335, UNS K91560 |
| Type |
: |
Seamless |
| Outer Dimensions |
: |
10.3mm – 914.4mm |
| Wall Thickness |
: |
2.0mm – 60 mm |
| Length |
: |
max 12000mm |
| Schedule |
: |
Schedules 20 through 160, STD, XS, XXS. |
| Tubing End |
: |
Plain End, Beveled End etc. |
| Package |
: |
Packing in bundles, special packing can be offered by customers’ requirement |
| Remark |
: |
We could produce as per client’s special request . |
p91 alloy pipe, p91 seamless pipe Chemical Compositions :
| C, % |
Mn, % |
P, % |
S, % |
Si, % |
Cr, % |
Mo, % |
V, % |
N, % |
Ni, % |
Al, % |
Nb, % |
| 0.08-0.12 |
0.3-0.6 |
0.02 max |
0.01 max |
0.2-0.5 |
8.0-9.5 |
0.85-1.05 |
0.18-0.25 |
0.03-0.07 |
0.4 max |
0.04 max |
0.06-0.10 |
p91 alloy pipe, p91 seamless pipe Mechanical Properties :
| Tensile Strength , MPa |
Yield Strength, MPa |
Elongation, % |
Hardness, HB |
| 585 min |
415 min |
20 min |
250 max |
p91 alloy pipe, p91 seamless pipe 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) |
|
|
