A335 Grade P91 Chrome Moly Alloy Steel Seamless Pipe

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A335 Grade P91 Chrome Moly Alloy Steel Seamless Pipe

Importer, Stockholder, Suppliers, Distributor, Stockiest and Exporter of ASTM A335 Grade P91 Chrome Moly Alloy Steel Pipes

ASTM A335 Grade P91 Chrome Moly Alloy Steel Seamless Pipes

ASTM A335 P91 is the part of ASTM A335, the pipe shall be suitable for bending, flanging, and similar forming operations, and for fusion welding. The steel material shall conform to chemical composition, tensile property, and hardness requirements. Each length of pipe shall be subjected to the hydrostatic test. Also, each pipe shall be examined by a non-destructive examination method in accordance to the required practices.

ASTM A335 Pipe (ASME S/A335, Chorme-Moly) is a seamless ferritic Alloy-Steel Pipe for high temperature service. Pipe ordered to this specification shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding. Sometimes referred to as “P Grade”, chome moly pipe is popular in P-Grades P5, P9, P11, P22, and P91. The most common use of grades P11, P22, and P91 is in the power industry and petro-chemical plants, Grades P5 and P9 are commonly used in refineries.

A335 is often called chrome moly pipe because of the chemical makeup of Molybdenum (Mo) and Chromium (Cr). Molybdenum increases the strength of steel as well as the elastic limit, resistance to wear, impact qualities, and hardenability. Moly increases the resistance to softening, restrains grain growth and makes chromium steel less susceptible to embrittlement. Moly is the most effective single additive that increases high temperature creep strength. It also enhances the corrosion resistance of steel, and inhibits pitting. Chromium (or chrome) is the essential constituent of stainless steel. Any steel with 12% or more Chrome is considered stainless. Chrome is virtually irreplaceable in resisting oxidation at elevated temperatures. Chrome raises the tensile, yield, and hardness at room temperatures. The composition chrome moly alloy steel pipe make it ideal for use in power plants, refineries, petro chemical plants, and oil field services where fluids and gases are transported at extremely high temperatures and pressures.

AN Steel Steel Supply stocks a full range of the following A335 pipe grades :

Grades: P-5, P-9, P-11, P-22, and P-91

Sizes:
NPS 1/4” to NPS 48”

Wall Thickness – Schedules 40 through 160, STD, XS, XXS.

Unscheduled heavy wall pipe Thickness available up to 4 inches.

A335 P91 Alloy Steel Pipe Chemical Composition

Chemical Composition % Of A335 P91 Alloy Steel Pipe

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	…

Mechanical Properties Of A335 P91 Alloy Steel Pipe

Properties	Data
Tensile strength, min, (MPa)	415 Mpa
Yield strength, min, (MPa)	205 Mpa
Elongation, min, (%), L/T	30/20

Chrome Moly Alloy Steel Seamless Pipes (ASME SA335 Grade P5)
Alloy Steel Seamless Pipes (ASME SA335 Grade P5) offered by us are made available in ASME SA335 as well as P1, P5, P9, P11, P12, P91, P92 grades. Our expertise lies in offering these in different sizes & schedules, with IBR & latest edition NACE MR 0175 reports.

Chrome Moly Alloy Steel Seamless Pipes (ASTM A335 P11)
Alloy Steel Pipes (ASTM A335 P11) offered by us are made as per IBR standards and are used mainly for boiler operations. We source these seamless pipes in varied size range. Further, we can also get these customized as per boiler piping requirements. For ensuring in them optimum quality standards, we source these from quality manufacturers. We also offer clients of having their own mark on them.

Chrome Moly Alloy Steel Seamless Pipes (ASTM A335 P12)
Alloy Steel Pipes (ASTM A335 P12) offered by us are available with ASTM A335 P12 standard and finds application in industries like Petrochemicals, Refineries, Fertilizers, Pharmaceuticals and others. We can source these seamless pipes in size range of up to 26 inches.

Chrome Moly Alloy Seamless Pipes (ASTM A335 Grade P91 NACE)
Alloy Seamless Pipes (ASTM A335 Grade P91 NACE) offered by us are made available in ASTM A335 Grades. Made as per IBR standards, these are mainly used in boiler operations. Further, our expertise lies in offering these pipes in various size range as well as in customized parameters as per boiler piping requirements. Sourced from quality conscious manufacturers, we also offer our clients the option of adding their own mark on them.

Chrome Moly Alloy Steel Seamless Pipes (SA335 Grade P9)
ASME Alloy Steel Seamless Tubes / Pipes (SA335 Grade P9) supplies and stock of, supplied and exported by us are used for various industrial applications. Our specialization in offering precision engineered alloy steels allow us to deliver these for various engineering applications in various grades like A-387 GR. P1, P5, P9, P11, P12, P22, P91, ASTM A-335 and others. The other specifications include:

ASTM A335 PIPES | ASTM A335 GR P5 PIPES | ASTM A335 GR P9 PIPES | ASTM A335 GR P11 PIPES | ASTM A335 GR P22 PIPES | ASTM A335 GR P91 PIPES
Size Range: 1/8″ – 26″
Schedules: 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH

Heat Treatment Requirements Chrome Moly Alloy Steel Seamless Pipes A335 Grade P91, P22, P9, P12, P11, P5

	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]

Chemical Requirements for Chrome Moly Alloy Steel Seamless Pipes A335 Grade P91, P22, P9, P12, P11, P5

Grade			P-5	P-9	P-11	P-22	P-91	P-91 shall also include the following:
Element		UNS Designation	K41545	S50400	K11597	K21590	K91560	P-91 shall also include the following:
	Carbon		0.15 max	0.15 max	0.05 – 0.15	0.05 – 0.15	0.08 – 0.12	V at 0.18 – 0.25
	Manganese		0.30 – 0.60	0.30 – 0.60	0.30 – 0.60	0.30 – 0.60	0.30 – 0.60	N at 0.030 – 0.070
	Phosphorous, max		0.025	0.025	0.025	0.025	0.020	Ni at 0.40 max
	Sulfur, max		0.025	0.025	0.025	0.025	0.010	Al at 0.02 max
	Silicon		0.50 max	0.25 – 1.00	0.50 – 1.00	0.50 max	0.20 -0.50	Cb at 0.06 – 0.10
	Chromium		4.00 – 6.00	8.00 – 10.00	1.00 – 1.50	1.90 – 2.60	8.00 – 9.50	Ti at 0.01 max
	Molybdenum		0.45 -0.65	0.90 – 1.10	0.44 – 0.65	0.87 – 1.13	0.85 – 1.05	Zr at 0.01 max

Tensile Requirements for Chrome Moly Alloy Steel Seamless Pipes A335 Grade P91, P22, P9, P12, P11, P5

	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

Permissible Variation in Wall Thickness Chrome Moly Alloy Steel Seamless Pipes A335 Grade P91, P22, P9, P12, P11, P5

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)

Elongation Requirements for Chrome Moly Alloy Steel Seamless Pipes A335 Grade P91, P22, P9, P12, P11, P5

Calculated Minimum Elongation Values
Elongation in 2 in. or 50 mm, min %
Wall Thickness		P5, P9, P11, P22			P91
in.	mm	Longitudinal		Transverse	Longitudinal
5/16 (0.312)	8		30	20	20
9/32 (0.281)	7.2		28	19	19
1/4 (0.250)	6.4		27	18	18
7/32 (0.219)	5.6		26		17
3/16 (0.188)	4.8		24		16
5/32 (0.156)	4		22		15
7/8 (0.125)	3.2		21		14
3/32 (0.094)	2.4		20		13
1/18 (0.062)	1.6		18		12

Permissible Variations in Outside Diameter for Chrome Moly Alloy Steel Seamless Pipes A335 Grade P91, P22, P9, P12, P11, P5
Outside Diameter at any point shall not vary from standard specified more than:

NPS [DN] Designator	Over		Under
	in.	mm	in.	mm
1/8 to 1 1/2 [6 to 40], incl.	1/64 (0.015)	0.40	1/64 (0.015)	0.40
Over 1 1/2 to 4 [40 to 100], incl.	1/32 (0.031)	0.79	1/32 (0.031)	0.79
Over 4 to 8 [100 to 200], incl.	1/16 (0.062)	1.59	1/32 (0.031)	0.79
Over 8 to 12 [200 to 300], incl.	3/32 (0.093)	2.38	1/32 (0.031)	0.79
Over 12 [300]	+/- 1% of the specified outside diameter

Mechanical Tests Specified for Chrome Moly Alloy Steel Seamless Pipes A335 Grade P91, P22, P9, P12, P11, P5

Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test
For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot. For small lots, at least one pipe shall be tested.
For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe.
Notes for Hardness Test:	P91 shall not have a hardness not exceeding 250 HB/265 HV [25HRC].
Notes for Bend Test:	For pipe whose diameter exceeds NPS 25 and whose diameter to wall thickness ratio is 7.0 or less shall be subjected to the bend test instead of the flattening test.
	Other pipe whose diameter equals or exceeds NPS 10 may be given the bend test in place of the flattening test subject to the approval of the purchaser.
	The bend test specimens shall be bent at room temperature through 180 without cracking on the outside of the bent portion.
	The inside diameter of the bend shall be 1 inch [25 mm].
Hydrostatic Test	Each length of pipe shall be Hydro tested, at option of manufacture nondestructive electric testing can be used.

A335 Grade P91 Chrome Moly Alloy Steel Seamless Pipe and Tube Packing

A335 Grade P91 Chrome Moly Alloy Steel Seamless Pipe and Tube is sleeved into plastic bag individually, pieces wrapped with water-proof material, bundled with nylon rope. Clear labels are tagged on the outside of the package for easy identification of the quantity and product I.D. Great care is taken during operation and transportation.

A335 Grade P91 Chrome Moly Alloy Steel Seamless Pipe packing will be according to international standard in bundles strapped by strips then into containers to avoid any damage.

Delivery: Within 10-25 days or asap if we have enough stock

Types of Packaging:

– Bundles (hexagonal)
– Wooden Boxes
– Crates (steel/wooden)
– Special crates for U-Bend tubes with each radius separated
– Packaging for A335 Grade P91 Chrome Moly Alloy Steel Seamless Pipe as per customer’s requirements

Special Features:

- – Each bundle covered with plastic for protection against extreme weather.
- – End of A335 Grade P91 Chrome Moly Alloy Steel Seamless Pipe protected by plastic caps.
- – Bundles strapped with plastic strips.
- – Each radius of U-Bend tube separated by a separator.
- – Packaging list (laminated) placed with box/crate.

ASTM A335 Grade P91 Chrome Moly Alloy Steel Seamless Pipe and Tube Sizes Available in Stock with Price
- 1/2″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 3/4″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 1″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 1-1/4″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 1-1/2″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 2″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 2-1/2″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 3″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 3-1/2″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 4″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 5″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 6″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 8″ NB in ThicknessSchedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 10″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 12″ NB in ThicknessSchedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 14″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 16″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 18″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 20″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 22″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 24″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 26″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 28″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 30″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 32″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 34″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube
- 36″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P91, P22, P9, P11, P5 Chrome Moly Alloy Steel Seamless Pipe and Tube

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We need such tubing for our clients in the UK, Malaysia, Indonesia, and the United States. We have been purchasing alloy 718 materials from A N Steel for almost ten years, and we have never encountered any issues with their super alloys. We also found A N Steel to be a dependable source of alloy C276 material, and I hope that they continue to provide this quality and lowest price.

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I want to thank you for the fantastic products and service. This steel pipes under quality control is very important. Congratulations and thanks.

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We have ordered stainless steel pipes, flanges, and pipe fittings from A N Steel, the most reputable manufacturer of stainless steel pipes in India. They have a sizable stock inventory of stainless steel sheets, plates, flanges, fasteners, tube fittings, welded pipes, seamless pipes, and forged fittings.

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