Astm a335 P23 Alloy Seamless pipes

ASTM A335 / ASTM A450 / ASTM A530 Grade P23 Alloy Steel Seamless Pipes Manufacturer, Exporter & Suppliers.

Alloy Steel Gr. P23 Seamless Round, Square, Rectangular, Hydraulic Pipes Suppliers in India.


Dinesh Tube (India) is leading Manufacturers, Suppliers, Stockiest and Exporters of UNS K91560 Alloy Steel Seamless Pipes. This seamless pipe is used mainly for High-Temperature Service. These pipes are widely used in different various application such as oil & gas, power plants, shipbuilding, heavy engineering industries etc. All products are industry-standard conforming to or exceeding API, ASTM, ASME, ANSI and other national and international standards. Dinesh Tube(India) specializes in ASTM A335 UNS K91560, ASME SA335 Grade p23 Alloy Steel Seamless Pipes, ANSI B 36.10, Alloy Steel Gr. p2 Seamless Round, p2 Pipe, Square, Rectangular, Hydraulic pipes With years of experience in exporting. Dinesh Tube (India) has export high-quality Alloy Steel Gr. p23 Seamless Round Pipes to customers throughout the worldwide. p23 pipes are available in different size, specification, grades & thickness as per the client’s requirements.

We specialise in ASTM A335 Alloy Steel p23 Seamless Pipe Exporting in Turkey, Egypt, Singapore, Malaysia, Indonesia, Jordan, South Africa, Oman, Qatar, Italy.

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Specification Of ASTM A335 P23 pipe:

Size : 1/8NB TO 24NB IN
Standards : ASTMA 335, ASME SA 335
Type : Seamless
Specialized in : Large Diameter Size
Outer Dimensions : 19.05mm – 114.3mm
Wall Thickness : 2.0mm – 14 mm
Length : max 16000mm
Schedule : Schedule 20 – Schedule XXS (heavier on request) up to 250 mm thk.
Form : Round, Square, Rectangular, Hydraulic Etc.
Length : Single Random, Double Random & Cut Length.
Tubing End : Plain End, Beveled End, Treaded.

ASTM A335 P23 Alloy Steel Seamless Pipes Chemical Compositions:

C, % Mn, % P, % S, % Si, % Cr, % Mo, % V, % Nb, % B,% N, % Al, % W, %
0.04-0.10 0.1-0.6 0.03 max 0.01 max 0.5 max 1.9-2.6 0.05-0.30 0.20-0.30 0.02-0.08 0.0005-0.006 0.03 max 0.03 max 1.45-1.75

UNS K91560 Pipes/ Seamless Pipes Mechanical Properties :

Tensile Strength, MPa Yield Strength, MPa Elongation, %
415 min 205 min 30 min

A335 P23 Pipe Outside Diameter & Tolerance :

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

A335 P23 Pipe Types:

ASTM A450 Hot rolled Outside Diameter, mm Tolerance, %
OD≤101.6, WT≤2.4 +40/-0
OD≤101.6, 2.4<WT≤3.8 +35/-0
OD≤101.6, 3.8<WT≤4.6 +33/-0
OD≤101.6, WT>4.6 +28/-0
OD>101.6, 2.4<WT≤3.8 +35/-0
OD>101.6, 3.8<WT≤4.6 +33/-0
OD>101.6, WT>4.6 +28/-0
Cold Drawn Outside Diameter, mm Tolerance, %
OD≤38.1 +20/-0
OD>38.1 +22/-0
ASTM A530 NPS Outside Diameter, inch Tolerance, %
1/8≤OD≤2-1/2 +20.0/-12.5
3≤OD≤18, WT/OD≤5% +22.5/-12.5
3≤OD≤18, WT/OD>5% +15.0/-12.5
OD≥20, WT/OD≤5% +22.5/-12.5
OD≥20, WT/OD>5% +15.0/-12.5

A335 P23 Pipe Types:

•   Alloy Steel P23 Seamless Pipes & Tubes
•   Alloy Steel P23 Welded Pipes & Tubes
•   Alloy Steel P23 Erw Pipes & Tubes
•   Alloy Steel P23 Efw Pipes & Tubes
•   Alloy Steel P23 Fabricated Pipes & Tubes
•   Alloy Steel P23 Square Pipes & Tubes
•   Alloy Steel P23 Rectangular Pipes & Tubes
•   Alloy Steel P23 Round Pipes & Tubes
•   Alloy Steel P23 High Pressure Pipes & Tubes