Astm a335 P91 Alloy Seamless pipes

ASTM A335 ALLOY STEEL SEAMLESS PIPES SUPPLIER, GLOBAL SUPPLIER OF HIGH QUALITY ASTM A335 ALLOY STEEL PIPES
ASME SA 335 Grade P91/ ASTM A335 Grade P91 Alloy Steel Seamless Pipes Manufacturers, Exporters, Stockists & Suppliers.
ASTM A335 P91 Alloy Pipe, astm 335 grade p91 seamless pipes/ ASTM A335 gr P91 Pipes Stockiest, Manufacturer, Exporter & suppliers
ANSI B 36.10, ASTM A335 gr P91Alloy Steel Gr. P91 Seamless Round, Square, Rectangular, Hydraulic Pipes Suppliers and Stockists in India.

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Dinesh Tube (India) is leading Manufacturers, Suppliers, Stockiest and Exporters of UNS K91560 Alloy Steel Seamless Pipes. These seamless pipe is used mainly for for High-Temperature Service. These pipes are widely used in different various application such as oil & gas, power plants, ship building, 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 SA 335 Grade P91 Alloy Steel Seamless Pipes, ANSI B 36.10, Alloy Steel Gr. P91 Seamless Round, P91 Pipe, Square, Rectangular, Hydraulic pipes With years of experience in exporting. Dinesh Tube (India) has export high quality Alloy Steel Gr. P91 Seamless Round Pipes to customers throughout the worldwide. P91 pipes are available in different size, specification, grades & thikness as per the clients requirements.

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P91 pipe, ASTM A335 P91 pipe, a335 grade p91 alloy steel pipe Suppliers, Exporter, Manufacturer & Stockiest in India.

Specification Of ASTM A335 P91 pipe:

Size	:	1/8NB TO 24NB IN
Standards	:	ASTM A 335, ASME SA 335, UNS K91560
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.

Application of ASTM A335/ASME SA 335 P5, P9, P11, P22, P91 Seamless Pipes

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

ASTM A335 P91 Alloy Steel Seamless PipesChemical Compositions:

Compositions	Data
UNS Designa-tion	K91560
Carbon(max.)	0.08-0.12
Manganese	0.30-0.60
Phosphorus(max.)	0.025
Silicon(max.)	0.50
Chromium	4.00-6.00
Molybdenum	0.45-0.65
Other Elements

UNS K91560 Pipes/ Seamless Pipes Mechanical Properties :

Tensile Strength , MPa	Yield Strength, MPa	Elongation, %	Hardness, HB
585 min	415 min	20 min	250 max

ASTM A335 P91 Alloy Steel Seamless Pipes Heat Treatment Requirements:

	P5, P9, P11, and P22
Grade	Heat Treatment Type	Normalizing Temperature Range F [C]	Subcritical Annealing or Tempering Temperature Range F [C]
P5 (b,c)	Full or Isothermal Anneal
	Normalize and Temper	*****	1250 [675]
	Subcritical Anneal (P5c only)	*****	1325 – 1375 [715 – 745]
P9	Full or Isothermal Anneal
	Normalize and Temper	*****	1250 [675]
P11	Full or Isothermal Anneal
	Normalize and Temper	*****	1200 [650]
P22	Full or Isothermal Anneal
	Normalize and Temper	*****	1250 [675]
P91	Normalize and Temper	1900-1975 [1040 – 1080]	1350-1470 [730 – 800]
	Quench and Temper	1900-1975 [1040 – 1080]	1350-1470 [730 – 800]

A335 P91 Pipe Tensile Requirements :

	Seamless
	P-5	P-9	P-11	P-22	P-91	P91 shall not have a hardness not exceeding 250 HB/265 HV [25HRC].
Tensile Strength, min., psi
ksi	60	60	60	60	85
MPa	415	415	415	415	585
Yield Strength, min., psi
ksi	30	30	30	30	60
MPa	205	205	205	205	415

Seamless Pipe/ Steel 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)