Astm A335 P5

Astm A335 P5

Engineered for extreme high-temperature and high-pressure working conditions, our heavy-duty alloy steel seamless pipe stands out for its exceptional oxidation resistance and durable creep performance. Manufactured following strict ASTM industrial standards, this chrome-moly alloy pipe delivers stable mechanical strength in harsh corrosive environments. We only adopt premium raw materials and precision seamless rolling technology to guarantee consistent wall thickness, smooth inner surface and long service life. Ideal for rigorous industrial piping systems, this reliable tubular solution meets diverse high-temperature processing demands.
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Description
Technical Parameters
1

Product Description

P91 Pipe

 

ASTM A335 P5 is a widely used chrome-moly seamless alloy steel pipe tailored for high-temperature and moderate-pressure industrial services. Featuring 5% chromium and molybdenum alloyed composition, this ferritic steel pipe delivers excellent thermal stability, creep resistance and oxidation performance under continuous heat conditions. It boasts good ductility, weldability and consistent mechanical strength, making it easy for cutting, bending and on-site installation. Resistant to high-temperature oxidation and weak corrosive media, the pipe works steadily in power plants, refineries and chemical processing systems. However, it is not suitable for strong corrosive environments and requires standardized heat treatment to maintain toughness. Priced higher than carbon steel pipes, it remains the ideal cost-effective tubular solution for long-term high-temperature industrial piping projects.

 

2

Company & Factory Profile

 

Jiangsu Cunrui Metal Products Co., Ltd. is a professional Chinese manufacturer and exporter focusing on high-grade carbon steel, alloy steel and stainless steel pipes. Located in Jiangsu province with convenient sea and land transportation, our modern production factory covers a large area equipped with advanced rolling, heat treatment and non-destructive testing equipment.

Our Factory

 

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We have complete production lines for seamless steel pipes, welded pipes and customized metal tubular products. Adhering to strict ISO quality management systems, every batch of goods undergoes rigorous chemical composition inspection, mechanical performance testing and dimensional tolerance detection. With years of overseas export experience, we have built long-term stable cooperation with clients from Southeast Asia, Europe, the Middle East and North America. Custom processing, bulk wholesale and one-stop metal procurement services are available for global partners.

 

3

Chemical Composition & Mechanical Properties

A335 P91
 

Element

Content Range

Carbon (C)

0.05-0.15%

Chromium (Cr)

4.00-6.00%

Molybdenum (Mo)

0.45-0.65%

Manganese (Mn)

0.30-0.60%

Silicon (Si)

0.50%

Phosphorus (P) / Sulfur (S)

≤0.025% / ≤0.025%

 

Performance Index

Standard Value

Tensile Strength

≥415 MPa

Yield Strength

≥205 MPa

Elongation (2 inches)

≥30%

Hardness

≤250 HB

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4

Common Applications 

P91 Pipe

Thanks to its excellent high-temperature resistance and anti-corrosion capability, our alloy steel pipe is widely applied in multiple heavy industrial fields. It is commonly used for high-temperature steam pipelines, boiler superheater tubes and pressure vessel piping in thermal power plants. In petroleum refining and petrochemical industries, it serves as transmission pipes for high-temperature crude oil and chemical mediums. Besides, it is also suitable for furnace tubes, heat exchanger pipelines and high-pressure fluid delivery systems in metallurgy and chemical factories. Its outstanding temperature adaptability makes it a cost-effective choice for long-term industrial operation.  

5

 Business Scope 

As a comprehensive metal supplier, Jiangsu Cunrui Metal Products Co., Ltd. focuses on diversified metal pipe trading and customized processing services. Our business scope covers seamless alloy steel pipes, carbon steel pipes, stainless steel pipes, pipe fittings and flanges. We support customized production based on non-standard diameter, wall thickness and length requirements. Meanwhile, we provide deep processing services including cutting, polishing, surface anti-rust treatment and heat treatment.

 

We support flexible trade terms: EXW, FOB, CIF and DDP. Both small trial orders and large bulk orders are acceptable. With stable supply chain and sufficient raw material inventory, we guarantee short lead time and professional after-sales service. Up to now, our metal products have been exported to more than 30 countries, winning consistent praise for reliable quality and competitive factory prices.

 

6

Frequently Asked Questions (FAQs)

Q1: What makes your alloy steel pipe different from other ordinary steel pipes?

We adopt high-purity chrome-moly raw materials and strictly follow ASTM manufacturing standards. Each product is tested for pressure resistance, corrosion resistance and chemical composition. Compared with common carbon steel pipes, it has better high-temperature creep resistance and longer service life in extreme industrial environments.

Q2: Can you provide customized size and surface processing?

Yes. We support customized outer diameter, wall thickness and pipe length. Custom services such as rust-proof oil coating, black painting, cutting and threading are available to meet different engineering installation requirements.

Q3: What is your delivery time and packaging method?

For conventional in-stock specifications, the delivery time is 7-10 working days. For customized bulk orders, the production cycle is 15-25 days. We use waterproof plastic bags + wooden pallets for export packaging to avoid damage during long-distance sea transportation.

Q4: Do you provide quality inspection certificates?

Certainly. We can provide MTC mill test certificate, chemical composition report, mechanical property test report and other official qualification documents to support customs clearance and project inspection for global clients.

If you are looking for durable and cost-effectiveASTM A335 P5 alloy steel pipes for industrial high-temperature systems, feel free to contact Jiangsu Cunrui Metal Products Co., Ltd. for the latest factory quotation. We are committed to providing high-quality tubular products and one-stop industrial metal solutions for global buyers.

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