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ASTM A335 Alloy Steel P22 Seamless Pipes

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Alloy Steel P22 Seamless Pipe Table of Content

Alloy steel p22 Material Dimensions Standard & Specifications
Alloy Steel P22 Pipe Specifications
P22 Material Chemical Composition
Mechanical Properties of Alloy Steel P22 Pipes
P22 Material Equivalents
Alloy Steel P22 Seamless Pipes Outside Diameter
Wall thickness Grade ASTM A335 P22 Seamless Pipe
Applications of Alloy Steel P22 Pipes

What is Alloy Steel P22?

High mechanical qualities and resistance to corrosion set Alloy Steel P22, a low-alloy ferritic steel grade apart. Two of the components that comprise a sizable portion of this type of steel are chromium and molybdenum. Because of their outstanding tensile strength, thermal stability, and weldability, P22 seamless pipes—made in line with ASTM A335 and ASME SA335 standards—are a suitable fit for use in high-temperature and high-pressure environments. These pipes are built according to requirements. Situations falling within this category include boilers, heat exchangers, power plants, petrochemical complexes.

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Alloy steel p22 Material Dimensions Standard & Specifications

Material

Size

(in mm)

Sch. & Swg.

Specification

ASTM A335 P22 Seamless Pipes

15 NB

300 NB

Sch. 40s

Sch. XXs

(heavier on request)

ASTM A 335, ASME SA 335

Seamless

Alloy Steel P22 Pipe Specifications

Specialized in	Large Diameter Pipes Size
Standard	SA335 P22 / ASTM A335 P22
OD	19.05milimeter – 114.3milimeter
Schedule	Schedule 40, 80, 160, XS, XXS
WT	2.0milimeter – 14 milimeter
Length	maximum 16000 milimmeter
Tolerance	Cold drawn pipes: +/-0.1mm Cold rolled pipe: +/-0.05mm
Form	Round, Square, Rectangular, Hydraulic Etc.
Craft	Cold drawn and Cold rolled
Size	1/2” NB upto 36” NB
Length	Double Random, Single Random, & Cut Length.
Type	Welded / ERW / Seamless / Fabricated
Specialized in	SA335 P22
End	Beveled End, Plain End, Treaded
Additional Testing	NACE TM0177, NACE MR 0175, IBR, NACE TM0284, SSC TEST, HIC TEST, H2 SERVICE, etc.

P22 Material Chemical Composition

Understanding the chemical composition of P22 is essential to ensure its reliability in demanding operational environments:

Element	Carbon (C)	Manganese (Mn)	Phosphorus (P)	Sulfur (S)	Silicon (Si)	Chromium (Cr)	Molybdenum (Mo)
% Range	0.05 – 0.15	0.30 – 0.60	≤ 0.025	≤ 0.025	0.50 – 1.00	1.90 – 2.60	0.87 – 1.13

This precise combination gives P22 alloy steel its strength, corrosion resistance, and ability to withstand elevated temperatures and pressures.

Mechanical Properties of Alloy Steel P22 Pipes

P22 seamless pipes are trusted for their mechanical robustness in extreme industrial applications. The standard mechanical properties are:

Property	Value	Description
Tensile Strength	≥ 415 MPa	Maximum stress the material can withstand while being stretched or pulled
Yield Strength	≥ 205 MPa	Stress at which the material begins to deform permanently
Elongation	≥ 20%	The material’s ability to stretch or elongate before breaking
Hardness	≤ 197 HB (Brinell)	Resistance to surface indentation and wear

These characteristics make P22 ideal for environments where structural integrity under stress is critical.

P22 Material Equivalents

Alloy Steel P22 is recognized and used internationally with various equivalent standards:

Standard	Equivalent Grade	Country/Region	Remarks
ASTM	A335 Grade P22	USA	Seamless ferritic alloy-steel pipe
ASME	SA335 Grade P22	USA	Pressure applications, high-temperature service
EN/DIN	10CrMo9-10	Europe/Germany	Similar chemical & mechanical properties
BS	620 B	United Kingdom	British equivalent alloy steel grade
UNS	K21590	International	Unified Numbering System designation
JIS	G3458 STPA 23	Japan	Alloy steel pipes for high-temperature service

These equivalents ensure that P22 can be sourced and applied globally while maintaining consistency in quality and performance.

ASME SA335 P22 Seamless Pipes Outside Diameter :

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

Wall Thickness Grade Of Alloy Steel P22 Seamless Pipe

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

ASME SA335 P22 Steel 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]
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]

ASME SA335 Grade P22 Pipe Tensile Requirements :

		Seamless
		P-5	P-9	P-11	P-22	P-91
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

Alloy Steel P22 Pipe Weight Per Meter :

Size NPS	Pipe O.D.	Wall Thickness	Pipe I.D.	Weight per Foot	Standard to XXHY	Schedule Pipe #	Section Modulus	Gallon Capacity Per Linear Foot
1/2	0.84	0.109	0.622	0.85	STD	40	.0407	.0158
		0.147	0.546	1.09	XHY	80	.0478	.0122
		0.188	0.464	1.31		160	.0528	.0088
		0.294	0.252	1.72	XXHY		.0577	.0026
3/4	1.05	0.113	0.824	1.13	STD	40	.0705	.0277
		0.154	0.742	1.48	XHY	80	.0853	.0225
		0.219	0.612	1.95		160	.1006	.0153
		0.308	0.434	2.44	XXHY		.1103	.0077
1	1.315	0.133	1.049	1.68	STD	40	.1328	.0449
		0.179	0.957	2.17	XHY	80	.1606	.0374
		0.250	0.815	2.85		160	.1904	.0271
		0.358	0.599	3.66	XXHY		.2136	.0146
1 1/4	1.66	0.140	1.380	2.27	STD	40	.2346	.0777
		0.191	1.278	3.00	XHY	80	.2913	.0666
		0.250	1.160	3.77		160	.3421	.0549
		0.382	0.896	5.22			.4110	.0328
1 1/2	1.90	0.145	1.610	2.72	STD	40	.3262	.1058
		0.200	1.500	3.63	XHY	80	.4118	.0918
		0.281	1.338	4.86		160	.5079	.0730
		0.400	1.100	6.41			.5977	.0494
2	2.375	0.109	2.157	2.64		10	.4205	.1898
		0.154	2.067	3.66	STD	40	.5606	.1743
		0.218	1.939	5.03	XHY	80	.7309	.1534
		0.250	1.875	5.68			.8045	.1434
		0.281	1.813	6.29			.8666	.1344
		0.344	1.687	7.47		160	.9806	.1161
		0.436	1.503	9.04	XXHY		1.1043	.0922
2 1/2	2.875	0.120	2.635	3.53		10	.6870	.2833
		0.203	2.469	5.80	STD.	40	1.0640	.2487
		0.216	2.443	6.14			1.1169	.2435
		0.250	2.375	7.02			1.2468	.2301
		0.276	2.323	7.67	XHY	80	1.3386	.2202
		0.375	2.125	10.02		160	1.6371	.1842
		0.552	1.771	13.71	XXXHY		1.9971	.1280

Applications of Alloy Steel P22 Pipes

P22 pipes find great application in many different industries because of their great strength, heat resistance, and corrosion tolerance:

Power Plants: Boilers, superheaters, and heat exchangers
Petrochemical Industry: Process piping, refinery operations
Oil & Gas Sector: Pipelines, offshore rigs, and gas processing
Chemical Industry: Handling of corrosive and high-temperature substances

These uses call for dependability, and P22 steel shows great performance all around.

Why Choose Lakshya Steel for Alloy Steel P22 Pipes?

Top source of Alloy Steel P22 pipes, Lakshya Steel is well-known for its commitment to quality, dependability, and customer satisfaction. We have a sizable inventory of thicknesses, schedules, and sizes that vary to meet a range of industrial uses. Strong adherence to ASTM A335 and ASME SA335 rules provides outstanding performance in high-pressure and high-temperature settings. We offer reasonably priced options without compromising material quality in addition to customising selections to suit certain project requirements. Fast customer service and expert technical assistance will help us to guarantee a perfect buying experience. Thanks to our global shipping capability, Lakshya Steel is your consistent partner for timely and efficient delivery whether you are managing local infrastructure or multinational projects.

Frequently Asked Questions (FAQs)

What standards do P22 pipes adhere to?

Alloy Steel P22 pipes are manufactured as per ASTM A335 and ASME SA335 standards.

Can P22 pipes be used in high-temperature environments?

Yes, P22 pipes are specifically designed for high-temperature, high-pressure service in boilers and heat exchangers

Are custom sizes and lengths available?

Absolutely. Lakshya Steel offers custom dimensions to match your project specifications

What is the lead time for large or bulk orders?

Delivery time depends on order size and destination. Please contact our sales team for accurate timelines.

Do your P22 pipes come with test certifications?

Yes, all pipes are delivered with detailed test certificates, including chemical and mechanical reports.

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