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A335 Pipe

Other Trade name: A335 PIPE, A/SA335, ASTM A335 pipe, P5, P9, P11, and P22

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A335 Pipe

Other Trade name: A335 PIPE, A/SA335, ASTM A335 pipe, P5, P9, P11, and P22

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A335 PIPE SPECIFICATIONS

A/SA335 Chrome Moly Pipe

Are you looking for a vendor for all your A335 / SA335 Piping needs? MD Exports LLP Pipes is a premier worldwide supplier of A335 / SA335 Pipe

A/SA335

NPS 1/4" – 24"

Schedules 40 through 160, STD, XH and XXH

A335 Pipe Scope

This specification covers nominal wall and minimum wall seamless ferritic alloy-steel pipe intended for high-temperature service. ASTM A335 pipe ordered to this specification shall be suitable for fusion welding, bending, flanging (vanstoning), and similar forming operations.

Material & Manufacture

A335 Pipe may be either hot finished or cold drawn with the finishing heat treatment noted below.

A335 Pipe 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]
	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 Pipe Chemical Requirements

	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

A335 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

A335 Pipe Permissible Variation in 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)

A335 Pipe Elongation Requirements

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

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

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.

Required Markings on Each Length

(On Tags attached to each Bundle in case of Bundled Pipe) Markings will adhere to prescribed specifications in A 999/A999M and be: Rolled, Stamped, or Stenciled (Mfrs. Option)

In addition, markings will include:

Length of pipe

Marking to indicate the test method(s)
Hydrostatic	Nondestructive	Marking
YES	NO	Test Pressure
NO	YES	NDE
NO	NO	NH
YES	YES	Test Pressure/NDE

Schedule Number

Heat Number or Manufacturer’s number by which heat can be identified

An Additional Symbol “S” if the pipe conforms to any Supplementary Requirements

S1 – Product Analysis

S2 – Transverse Tension Test

S3 – Flattening Test

S4 – Metal Structure and Etching Tests

S5 – Photomicrographs

S6 – Photomicrographs for Individual Pieces

S7 – Alternative Heat Treatment – Grade P91

Pipe that has been weld repaired shall be marked “WR”.

A335 Pipe Reference Documents

ASTM A999/A 999M Specification for General requirements for Alloy and Stainless Steel Pipe.
ASTM E 213 Practice for Ultrasonic Examination of metal Pipe and Tubing
ASTM E 309 Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation
ASTM E 381 Method of Macroetch testing Steel Bars, Billets, Blooms, and Forgings
ASTM E 570 Practice for Flux Leakage Examination of Ferromagnetic Steel Tubular Products
ASME B26.10M Welded and Seamless Wrought Steel Pipe

Ordering Information

Orders for material under this specification should include the following, as required, to describe the desired material adequately:

Quantity	Feet, meters, or number of lengths
Name of material	Seamless Alloy Steel Pipe
Grade	P5, P9, P11, P22, P91
Manufacturer	Hot-finished or cold-drawn
Size using one of the following:
NPS and Schedule Number
Outside Diameter and Nominal Wall Thickness
Outside Diameter and Minimum Wall Thickness
Inside Diameter and Nominal Wall Thickness
Inside Diameter and Minimum Wall Thickness
Length	Specific or Random
End Finish

A335 Pipe Marking & Packaging

SEA WORTHY PACKING: Hexagonal shaper bundled with strong steel strips. Plastic caps on both of the pipes. Other types of packing can be made according to the customer's requirements


A335 Pipe packed in MD Exports LLP's stockyard	A335 Pipe packed for shipping

(Note: Please refer to the specific Standard or Specification or contact us for more details.)

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Product Name:A335 Pipe
Price: $ 1.54
Product Width: 0.00 cm
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Product Weight: 0.00 kg
Description: Other Trade name: A335 PIPE, A/SA335, ASTM A335 pipe, P5, P9, P11, and P22 Calculate Your Pipe Weight (It will open in new window)