Name: A335 Seamless Steel Pipe
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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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A335 Seamless Steel Pipe

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

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Packaging And Transportation

Transport packaging is used to minimize product damage during transportation and distribution, ensure product safety, facilitate storage, transport, loading and unloading, and expedite handover and inspection. People utilize packaging for transportation, storage, and handling. Also known as outer packaging, its main function is to protect goods, prevent damage during storage and transportation, minimize the impact of various external conditions on the goods during transport, and facilitate inspection, inventory, and distribution.

Transport packaging should meet the following basic requirements:

• Sufficient strength, rigidity, and stability;

• Waterproof, moisture-proof, insect-proof, corrosion-proof, and theft-proof capabilities;

• The selection of packaging materials should meet economic and safety requirements;

• The weight, dimensions, markings, and form of the packaging should conform to international and national standards, facilitating handling and loading/unloading;

• Reduce the labor intensity of workers and ensure safe and convenient operation.

The basic principles that should be followed in the design of transport packaging equipment include: standardization and serialization; containerization and large-scale principles; diversification and specialization principles; scientific principles; and ecological principles.

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