ASTM A335 P11 P12 P22 Alloy Pipes

ASTM A335 P11 P12 P22 steel pipe is a low carbon steel with specific chemical composition and mechanical property requirements, and its hardness and strength can be improved through different heat treatment methods.

standard:ASTM

Surface :1. Galvanized 2. Black and Color Painting

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introduction

ASTM A335 P12 steel pipe is a low carbon steel containing elements such as carbon, manganese, phosphorus, sulfur, silicon, chromium and molybdenum. Its carbon content is a maximum of 0.015%, so it falls into the category of low carbon steel. Nominal bore diameters range from 1/8NB to 24NB, wall thicknesses range from 2mm to 14mm, and external dimensions range from 19.05mm to 114.3mm. This pipe falls under the large diameter pipe size category and is available in single random, double random or cut length sizes up to 16000mm. There are different pipe ends such as threaded pipe, plain end pipe and bevel end pipe.
P11 and P12 alloy steel pipes differ in chemical composition. P11 contains up to 1.25% chromium and up to 45% molybdenum, while the P12 grade contains up to 1% molybdenum in its composition. The strengths of both grades are 415MPa minimum tensile strength and 205MPa minimum yield strength.
In order to improve the hardness of alloy steel P12 pipe, heat treatment methods such as complete or isothermal annealing, normalizing and tempering can be used. These heat treatment methods can change the microstructure and properties of the material, thereby increasing the material's hardness and strength.
In general, ASTM A335 P12 carbon steel pipe is a low carbon steel with specific chemical composition and mechanical property requirements, and its hardness and strength can be improved through different heat treatment methods.

Technical Data

A335 Pipe	Over		Under
NPS [DN]	in.	mm	in.	mm
1/8 to 1 1/2 / DN 6 to 40	1/64 (0.015)	0.4	1/64 (0.015)	0.4
Over 1 1/2 to 4 / DN 40 to 100	1/32 (0.031)	0.79	1/32 (0.031)	0.79
Over 4 to 8 / DN 100 to 200	1/16 (0.062)	1.59	1/32 (0.031)	0.79
Over 8 to 12 / DN 200 to 300	3/32 (0.093)	2.38	1/32 (0.031)	0.79
Over 12 / > DN 300	+/- 1% of the specified outside diameter

Outside Diameter & Tolerance

ASTM A450	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
ASTM A530 & ASTM A335	NPS	Outside Diameter, inch	Tolerance, mm
		1/8≤OD≤1-1/2	±0.40
		1-1/2＜OD≤4	±0.79
		4＜OD≤8	+1.59/-0.79
		8＜OD≤12	+2.38/-0.79
		OD>12	±1%

company advantage

Our company stands out for many reasons. First of all, we have modern production facilities and adopt advanced production processes to ensure the high quality and reliability of steel pipes. Secondly, our team consists of experienced professionals who are able to provide professional technical support and solutions to meet our customers' various needs.

FAQ

Q.Why choose you?
A.Firstly quality, secondly price, we can give you both. Our service formula: good quality + good price + good service = customer's trust.

Q.What services do you provide?
A.Customized service for each customer, please feel free to contact us!

Q.Does the product have quality inspection before loading?
A.Of course, all our products are strictly tested for quality before packaging, and ungualified products will bedestroyed.we accept the third party inspection absolutely.

Q.What is A335 steel?
A.A335/SA335 P5 is a seamless ferritic alloy-steel pipe used for high-temperature applications.