Alloy Steel ASTM A335 UNS K91560 Seamless Pipes, Alloy Steel Grade P91 Seamless Pipes Supplier in India.
ASTM A335 Grade P91 AS Seamless Pipes, Alloy Steel P91 Seamlees Pipes Dealers, AS Gr P91 Rectangular Pipes, A335 P91 Seamless Pipes Leading Manufacturers.
ASTM A335 P91 Square Pipes Stockholder, AS Grade P91 High Pressure Seamless Pipes, P91 Alloy Steel Seamless Pipes Manufacturer, Stockist, Suppliers and Exporter
Also, we make safe packaging of our range using qualitative material, which helps in protecting them from damage or any defect during transit. Meanwhile, with respect to national and international quality of raw materials, we also offer these pipes in customized sizes and thicknesses as per specific demands by our esteemed clients at market leading prices.
ASTM A335 Grade P91 Alloy Steel Seamless Pipe Specification
Dimensions : ASTM, ASME and API
Standard : ASTM A 335 / ASME SA 335
Size : 1/2” NB to 36” NB
Schedule : SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules, upto 12mm thk
Outer Diameter : 19.05mm – 114.3mm
Wall Thickness : 2.0mm – 14 mm
Type : Seamless
End : Plain End, Beveled End, Treaded
Form : Round, Square, Rectangular, Hydraulic Etc
Length : Single Random, Double Random & Required Length, Custom Size – 12 Meter lengths
Alloy Steel Grade P91 Seamless Pipes Chemical Composition
| Element | Alloy Steel P91 |
| C | 0.08-0.12 |
| Cr | 8.0-9.5 |
| Mn | 0.3-0.6 |
| Mo | 0.85-1.05 |
| P | 0.02 max |
| S | 0.01 max |
| Si | 0.2-0.5 |
| V | 0.18-0.25 |
| Nb | 0.06-0.10 |
| Ni | 0.4 max |
| N | 0.03-0.07 |
| Al | 0.04 max |
ASTM A335 P91 Seamless Pipes Mechanical Properties
| Element | Alloy Steel P91 |
| Tensile Strength | 585 min |
| Yield Strength | 415 min |
| Hardness, HB | 250 max |
| Elongation % | 20 min |
A335 Gr P91 Alloy Steel Seamless Pipes Tolerance
| NPS | OD Tolerance | NPS | WT Tolerance |
| 1/8″ ≤ NPS ≤ 1 1/2″ | +/- 0.4 | 1/8″ ≤ NPS ≤ 2 1/2″ , All T/D ratios. | +20%, -12.5% |
| 1 1/2 < NPS ≤ 4″ | +/- 0.79 | NPS ≥ 2 1/2″ , T/D ≤ 5% | +22.5%, -12.5% |
| 4″ < NPS ≤ 8″ | +1.59, -0.79 | NPS ≥ 2 1/2″ , T/D > 5% | +15%, -12.5% |
| 8″ < NPS ≤ 12″ | +2.38, -0.79 | (T= Specified Wall Thickness; D = Specified Outside Diameter) | |
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