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Hebei Hongcheng Pipe Fittings Co., Ltd.

A335 Gr P5 P9 Alloy Seamless Steel Pipe With High Strength

Product Details:
Place of Origin: China
Brand Name: HongCheng
Model Number: 18-1219mm
Payment & Shipping Terms:
Minimum Order Quantity: 0.3Ton
Price: Negotiable
Packaging Details: Packed into bundles. PVC, Plastic Cover or as Your Request.
Delivery Time: 7-15 work days
Payment Terms: L/C, D/P, T/T
Supply Ability: 2 Million Ton/Year
  • Detail Information
  • Product Description

Detail Information

Standard: ASTM A335, ASTM A213, JIS G3458, JIS A3462, DIN17175, GB5310, GB9948 Material: P1, P2, P12, P11, P22, P5, P9, P91, P92,T1, T2, T11,T12, T5, T9, T22, ST52, X42, X46,X52,X60,X70,X80,X100,15CrMo,Cr5Mo,10CrMo910,12Cr2Mo,13CrMo44,12CrMo195,42CrMo,42CrMO4, X12CrMo91,12CrMo,etc
Wall Thickness: 1mm~120mm Length: 5.5-12meter (6Meter Or Request )
Export To: Iran,India,Dubai,Korea,Thailand,Viet Name,Indonesia,Brazil,Saudi Arabia,Canada,Mexico,Peru, USA,Canada,Kuwait,Oman,Peru,Singapore,South Africa,Oman,Korea,Thailand,etc Outer Diameter: 18 - 1219 Mm
High Light:

P5 Alloy Seamless Steel Pipe


P9 Alloy Seamless Steel Pipe


A335 High Strength Steel Pipe

Product Description

ASTM A335 Seamless Alloy Steel Pipe With High Strength A335 Gr P5, P9, P11, P22 , P91,P92 Alloy Seamless Steel Pipe

Standard: ASTM A335

grade: P1, P2,P5,P9,P11,P91,P92

OD: 10.3-660mm

WT: 1.6-60mm

Length: 5.8m-12m or random legth

Technical: Quenching & Tempering

Application: Gas fire power plant, coal fire power plant, headers and steam lines, Feed water pipes,

super heaters and reheaters.


A335 P9 Alloy Steel Pipe that covers “chrome-moly” seamless pipes with remarkable resistance to

corrosion and good tensile strength at high-temperature service. Generally, ASTM A335 P11, P22,

and P91 pipes are used in power generation and in downstream oil and gas, P5 and P9 grades are

for refinery applications.


How to define alloy pipes?

Alloy pipes are tubular with higher percentages, than standard carbon steel pipes, of alloying elements

as Molybdenum (Mo), Chromium (Cr), Nickel, etc. Actually, the ASTM A335 covers “low-alloy” steel pipes,

i.e. pipes that have a total amount of alloying elements below 5%. The addition of higher percentages of

alloying elements (example Nickel and Chromium) transforms the steel into higher alloys, like stainless steel,

duplex, up to super-alloyed materials like Inconel, Hastelloy, Monel, etc.

Alloy steel pipes are used in the energy industry for high temperature and very low-temperature service

(cryogenic), or for applications with very high pressures.

ASTM A335 alloy steel pipes fit ASTM A234 WPx series buttweld fittings (WP5, WP9, WP91) and A182 Fx

forged fittings and flanges (A182 F5, F9, F11, F22, F91). All these materials have similar chemical and mechanical

properties and can be joined or welded.

Alloying elements

The addition of Molybdenum (“Moly”) increases the strength of the steel and its elastic limit, enhance

the steel resistance to wear, its impact qualities, and the hardenability. It also improves the resistance

to softening, makes chromium steel less prone to embrittlement and prevents pitting.

Chromium, a key element also for stainless steel alloys, prevents steel oxidation at elevated temperatures

and increases the resistance of steel to corrosion. It enhances the tensile, yield, and hardness properties

of low-alloy pipes at room temperatures.

Other alloying elements, present in various degrees in pipes of all grades are:

1. Aluminum: decreases oxygen from steelmaking

2. Boron: used to produce fine grain size and enhance steel hardness

3. Cobalt: used to enhance the steel’s heat and wear-resistance

4. Manganese: gives better steel hardenability

5. Nickel: Enhances toughness, hardenability and impact strength at low temperatures

6. Silicon: decreases oxygen, enhances hardenability and toughness

7. Titanium: prevents precipitation of chromium carbide

8. Tungsten: refines steel grain size and enhance the steel hardness, especially at high temperatures

9. Vanadium: gives steel enhanced fatigue resistance

As mentioned, low-alloy steels have a total amount of alloying elements below 5%; high alloy steel has a higher

percentage of these elements.

A335 Gr P5 P9 Alloy Seamless Steel Pipe  With High Strength 0

A335 Gr P5 P9 Alloy Seamless Steel Pipe  With High Strength 1
A335 Gr P5 P9 Alloy Seamless Steel Pipe  With High Strength 2


China Hebei Hong Cheng pipe fitting company is a professional enterprise that integrates pipe production, selling and exports.The company was founded in 1992. It covers an area of 0.1 million square meters.

There are 520 employees,3 of them are senior engineers,12 of them engineers and 150 of them professional technical workers.The annual production capacity is more than 20,000 tons, and the pipe turnover is more than 50,000 tons.

The company has advance production equipment, complete detection equipment and strong technology power. The leading products are steel pipe fitting accessories(elbows, bends, tees, cross tees, reducers, capping heads, flanges, hangers, socket components) series products.

Gnee provides steel plate, steel sheet, steel pipe,square tube and rectangular tube, seamless steel pipe and tube, round bars and steel section, and doing steel products processing service: steel plate and sheet processing service. The processing works concludes cutting the larger plate into the small sizes customer demand, cut by drawing, cut to special sizes, weld the cut parts by drawing, also make galvanizing processing or surface painting on the final processed parts; steel pipe hollow bar cutting and lathe processing to make the outer diameter and wall thickness to meet customers requirement, also make heat treatment for hollow bars and pipes. Has large stocks for the carbon steel and low alloy steel plates and sheets, especially have the thick plate and heavy plates on stock, also can provide the special material and large size steel plates, boiler and pressure vessel steel plate, marine steel plate, hot rolled steel plate for new production.

A335 Gr P5 P9 Alloy Seamless Steel Pipe  With High Strength 3

A335 Gr P5 P9 Alloy Seamless Steel Pipe  With High Strength 4

A335 Gr P5 P9 Alloy Seamless Steel Pipe  With High Strength 5


Q: Are you trading company or manufacturer ?

A: We are factory.

Q: How long is your delivery time?

A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: Is it OK to print my logo on products?
A: Yes. OEM and ODM are available for us.

Q: How to ensure the quality?

A:Mill Test Certificate is supplied with shipment. If needed, a Third Party Inspection is acceptable or SGS

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