Name: A335 Seamless Steel Pipe
SKU: 0

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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.

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Product Description

A335 Seamless Steel Pipe Description

ASTM A335 Pipe is a seamless ferritic alloy-steel Pipe for high temperature service. Pipe of this specification are suitable for bending, flanging, and similar forming operations, and for fusion welding. 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. A335 steel pipe not only has high oxidation resistance and high temperature steam corrosion resistance,but also has good impact toughness,stable durable plasticity and thermal strength. A335 steel pipes are commonly used to transport high-temperature and high-pressure oil, natural gas and other media.

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.

Product Application

Chemical Industry

steel is used to construct facilities such as large storage tanks, refining equipment, and chemical pipelines.

Natural Gas Industry

Steel is also widely used in the energy industry, such as oil and gas pipelines.

Oil Pipeline

In the oil and gas industry, carbon steel is used to manufacture various equipment and pipelines.

Ship

In shipbuilding, steel is used to manufacture key components such as ship structures and engine parts.

Stadium

Steel plays an important role in steel structure buildings such as high-rise buildings, large-span buildings, and sports venues.

Water Treatment

The application of steel in water treatment is mainly reflected in the construction of water treatment equipment and the production of components such as pipelines.

Packaging and shipping

Factory Display

FAQ

Q1: What metal materials do you supply?

Jiangsu Zhongersheng is a professional manufacturer mainly supplying carbon steel, hot-dip galvanized steel, PPGI color coated steel, 201/304/316 stainless steel sheets, coils, tubes and profiles, as well as various steel structural parts. Our products serve infrastructure, photovoltaic, machinery manufacturing, chemical and new energy industries.

Q2: Can you customize material grades, thickness and sizes?

Full customization is available. For carbon steel, galvanized steel and stainless steel, thickness, width and length can be adjusted in accordance with ASTM & EN standards. Profiles can be cut and processed as per drawings, and special steel materials can be customized via production line scheduling.

Q3: What’s the difference between galvanized steel and color coated PPGI?

Hot-dip galvanized steel features pure zinc anti-rust coating with cost-effective and wear-resistant performance, suitable for steel brackets, guardrails and load-bearing structures, and supports secondary painting. PPGI takes galvanized sheet as base material with colorful coating for anti-rust & decorative purposes, widely used for factory roof/wall panels and energy storage housings. Thick galvanized steel is recommended for rainy coastal areas, while PPGI is ideal for decorative outdoor projects.

Q4: Do you have spot inventory? What’s your MOQ?

We built a 10,000-ton standardized warehouse with abundant spot stock of carbon steel, galvanized steel and stainless steel. MOQ is 1 ton for standard sizes; small samples of dozens of kilograms are acceptable. No upper limit for bulk engineering orders, mixed container loading of multiple steel types is supported.

Q5: How long is the delivery time for spot goods & customized goods?

Spot goods can be loaded within 3-7 days; simple cutting & bending processing orders take 7-10 days; mould opening & special steel customization takes 15-30 days, subject to specific specifications confirmation.