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A335 Seamless Steel Pipe

ASTM A335 steel pipe may be hot finished or cold drawn and subjected to the following finishing heat treatment. The specification covers "chrome-molybdenum" seamless pipes with excellent corrosion resistance and high temperature tensile strength. Generally, ASTM A335 P11, P22, and P91 pipelines are used for power generation and downstream oil and gas, and P5 and P9 grades are used for refinery applications.

Classification :

Carbon Steel Pipe

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A335 Seamless Steel Pipe Description

Product Parameters

Product Name	A335 Seamless Steel Pipe
Standard	EN/DIN/JIS/ASTM/BS/ASME/AISI etc.
Outer Diameter	Seamless: 1/4"-36"	Welding: 21.3mm-3620mm
	Round Tube: 1/2"-10"	Square Tube/Rectangular Tube: 15x15mm-400x600mm
Wall Thickness	Seamless: 1.25mm-50mm	Welding: 1.65mm-65mm
Length	3-12 meters, Support customization
Surface Process	Bright, Polished, Black
Other Services	Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.

Chemical Composition

A335	UNS	C≤	Mn	P≤	S≤	Si≤	Cr	Mo
P1	K11522	0.10~0.20	0.30~0.80	0.025	0.025	0.10~0.50	-	0.44~0.65
P2	K11547	0.10~0.20	0.30~0.61	0.025	0.025	0.10~0.30	0.50~0.81	0.44~0.65
P5	K41545	0.15	0.30~0.60	0.025	0.025	0.5	4.00~6.00	0.44~0.65
P5b	K51545	0.15	0.30~0.60	0.025	0.025	1.00~2.00	4.00~6.00	0.44~0.65
P5c	K41245	0.12	0.30~0.60	0.025	0.025	0.5	4.00~6.00	0.44~0.65
P9	S50400	0.15	0.30~0.60	0.025	0.025	0.50~1.00	8.00~10.00	0.44~0.65
P11	K11597	0.05~0.15	0.30~0.61	0.025	0.025	0.50~1.00	1.00~1.50	0.44~0.65
P12	K11562	0.05~0.15	0.30~0.60	0.025	0.025	0.5	0.80~1.25	0.44~0.65
P15	K11578	0.05~0.15	0.30~0.60	0.025	0.025	1.15~1.65	-	0.44~0.65
P21	K31545	0.05~0.15	0.30~0.60	0.025	0.025	0.5	2.65~3.35	0.80~1.60
P22	K21590	0.05~0.15	0.30~0.60	0.025	0.025	0.5	1.90~2.60	0.87~1.13
P91	K91560	0.08~0.12	0.30~0.60	0.02	0.01	0.20~0.50	8.00~9.50	0.85~1.05
P92	K92460	0.07~0.13	0.30~0.60	0.02	0.01	0.5	8.50~9.50	0.30~0.60

Mechanical Properties

A335	UNS	Yield Strength Ksi	Tensile Strength Ksi	Elongation %
P1	K11522	30	55	30
P2	K11547	30	55	30
P5	K41545	40	70	30
P9	S50400	30	60	30
P11	K11597	30	60	20
P12	K11562	32	60	30
P22	K21590	30	60	30
P91	K91560	60	85	20

Scope of Application

The specification covers "chrome-molybdenum" seamless pipes with excellent corrosion resistance and high temperature tensile strength. Generally, ASTM A335 P11, P22, and P91 pipelines are used for power generation and downstream oil and gas, and P5 and P9 grades are used for refinery applications.

Factory Appearance

Our company is the first wide and thick steel plate production and scientific research base in China. Our company was founded in 1970 and is my country's first wide and thick plate production and scientific research base. We have now become the main base for localization and import substitution of wide and thick steel plates in my country.

Packing and shipping

It possesses two wide and heavy steel plate production lines including one 4100mm line and one 4200mm line of high specialization, with international first class technological equipment and the comprehensive capacity of annually producing over 5 million tons of molten steel and 3 million tons of steel plate. The total assets are 13.2 billion yuan. The number of employees amounts to more than 10，000. The company covers an area of 7.35 m2. The total area of industrial building at plant site is 4.4 million m2. The steel plate heat treatment technology, extra heavy steel plate production technology and ESR steel production technology are all in the leading position of the same industry.

Customer visit

It has 12 product series including low-alloy high-strength steel plates and alloy structural steel plates, more than 300 steel types, and more than 400 thickness specifications of wide and thick steel plate products. It adopts foreign standards to produce more than 180 varieties. The products are exported to more than 100 countries and regions around the world, including Europe, America, and Asia, and are well received by customers at home and abroad.

Application areas

Products are widely used in water conservancy projects, military equipment, construction industry, aerospace, automobiles, home appliances and other fields. It has scale advantages, resource advantages, integration advantages, technology research and development advantages, capital operation advantages, and has a complete pre-sales, sales and after-sales service system. Positioned to produce and develop high-end wide and thick plates, we continue to innovate and seek transformation, and are willing to provide other hot-rolled plates, medium-thick plates, wire rods, cold-rolled plates, galvanized plates, stainless steel and other steel products to global customers.

Carbon Steel Pipe