gas cylinder tube 30CrMo/35CrMo/37Mn/34Mn2V/34CrMo4 EN10297 gas cylinder tube

gas cylinder tube 30CrMo/35CrMo/37Mn/34Mn2V/34CrMo4 EN10297 gas cylinder tube

Company Profile

Hongye stands out with its unique capabilities! As a leading global metal distribution company, we provide tailored product solutions to meet our clients' needs, helping them gain a competitive edge.

Founded in 2009 and headquartered in Wuxi, China, Hongye has made significant achievements in the aerospace, defense, transportation, shipbuilding, semiconductor, energy, and construction sectors over the past five years.

We offer solutions in sheets, pipes, profiles, building materials, specialty steels, stainless steels, and non-ferrous metals. Additionally, our involvement in finance and port operations strengthens our position in the metal import and export market.

With our integrated “one-stop” services that include procurement, processing, retail, and logistics, Hongye has become an industry benchmark. We excel in delivering high-quality, cost-effective products, supported by robust supply chain management to meet customer needs continuously.

Internationally, Hongye has established a solid business network in Europe, Southeast Asia, and the Middle East. Our multilingual and culturally adept trade team ensures efficient and professional service for every transaction.

Since 2010, Hongye has made notable progress in sustainability, recognized by multiple institutions. By the end of 2012, we had invested 1.22 billion RMB (200 million USD) in China's metal distribution industry, becoming a significant local investor. We aim to expand our market share through collaboration and innovation.

Looking ahead, Hongye will continue to globalize, leveraging our experience and resources to grow our international market share and aspire to be a leader in the global metal distribution industry.

Our goal is to rank among the top 10 in comprehensive strength in China's metal distribution market.

Product Specification

1. Power Generation:

   • Boiler feed water and steam lines in power plants
   • Superheater and reheater tubes in boilers
   • Piping for high-pressure and high-temperature steam systems
   • Penstock and flume piping in hydroelectric power plants

2. Petrochemical and Refining Industries:

   • Piping and tubing for fluid catalytic cracking (FCC) units
   • Piping for high-temperature processing units
   • Heat exchanger tubes and headers
   • Piping for transport of corrosive chemicals and hydrocarbons

3. Oil and Gas Industry:

   • Piping for the transportation of crude oil, natural gas, and refined petroleum products
   • Casing and tubing used in high-temperature oil and gas wells
   • Hydraulic and pneumatic systems in offshore platforms and rigs

4. Chemical Processing:

   • Piping and equipment for the transport of corrosive chemicals
   • Reactor vessels and process equipment

5. Pulp and Paper Industry:

   • Recovery boiler and digester piping
   • Piping for high-pressure and high-temperature steam systems

6. Aerospace and Defense:

   • High-pressure hydraulic systems
   • Fuel lines and high-temperature applications

7. General Industrial Applications:

   • High-pressure and high-temperature fluid conveyance systems
   • Pressure vessels and heat exchangers

The selection of Grade P9 or P22 depends on the specific requirements of the application, such as temperature, pressure, corrosion resistance, and mechanical properties. Grade P9 provides higher chromium content for enhanced oxidation resistance, while Grade P22 offers a balance of strength and ductility.

The seamless manufacturing process and tight dimensional tolerances ensure the pipes' suitability for reliable and safe operation in high-pressure, high-temperature fluid conveyance systems.

Product Description

Product Characteristics

 

1. Material Grades:

   • ASTM A335 Grade P9 (9Cr-1Mo alloy steel)
   • ASTM A335 Grade P22 (2.25Cr-1Mo alloy steel)

2. Manufacturing Process:

   • Seamless

3. Dimensional Characteristics:

   • Outside Diameters (OD) ranging from 10 mm to 406 mm
   • Wall Thicknesses from 1.5 mm to 20 mm
   • Available in standard and custom lengths

4. Tight Tolerances:

   • Precise control of outer diameter (±0.10 mm to ±0.50 mm)
   • Tight wall thickness tolerances (±0.10 mm to ±0.50 mm)
   • Excellent straightness (≤0.3 mm/m)
   • High circularity (≤0.5% of OD)

5. Chemical Composition:

   • Grade P9: 8.0-10.0% Cr, 0.90-1.10% Mo, ≤0.15% C
   • Grade P22: 2.00-2.50% Cr, 0.90-1.10% Mo, ≤0.15% C

6. Excellent Mechanical Properties:

   • Grade P9: Tensile Strength 585-760 MPa, Yield Strength ≥410 MPa, Elongation ≥20%
   • Grade P22: Tensile Strength 550-720 MPa, Yield Strength ≥380 MPa, Elongation ≥20%

7. Heat Treatment:

   • Normalized and tempered for optimal mechanical properties

8. Surface Condition:

   • Pickled and oiled, with a smooth surface finish

9. Compliance with Standards:

   • ASTM A335/A335M "Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service"

These product characteristics make the ASTM A335 Grade P9 and P22 seamless alloy steel pipes well-suited for high-temperature, high-pressure fluid conveyance applications in power generation, petrochemical, and other industrial sectors. The addition of chromium and molybdenum provides enhanced strength, creep resistance, and corrosion resistance at elevated temperatures.

 

 

Application of the product

 

1. Material Grades:

   • ASTM A335 Grade P9 (9Cr-1Mo alloy steel)
   • ASTM A335 Grade P22 (2.25Cr-1Mo alloy steel)

2. Manufacturing Process:

   • Seamless

3. Dimensional Characteristics:

   • Outside Diameters (OD) ranging from 10 mm to 406 mm
   • Wall Thicknesses from 1.5 mm to 20 mm
   • Available in standard and custom lengths

4. Tight Tolerances:

   • Precise control of outer diameter (±0.10 mm to ±0.50 mm)
   • Tight wall thickness tolerances (±0.10 mm to ±0.50 mm)
   • Excellent straightness (≤0.3 mm/m)
   • High circularity (≤0.5% of OD)

5. Chemical Composition:

   • Grade P9: 8.0-10.0% Cr, 0.90-1.10% Mo, ≤0.15% C
   • Grade P22: 2.00-2.50% Cr, 0.90-1.10% Mo, ≤0.15% C

6. Excellent Mechanical Properties:

   • Grade P9: Tensile Strength 585-760 MPa, Yield Strength ≥410 MPa, Elongation ≥20%
   • Grade P22: Tensile Strength 550-720 MPa, Yield Strength ≥380 MPa, Elongation ≥20%

7. Heat Treatment:

   • Normalized and tempered for optimal mechanical properties

8. Surface Condition:

   • Pickled and oiled, with a smooth surface finish

9. Compliance with Standards:

   • ASTM A335/A335M "Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service"

These product characteristics make the ASTM A335 Grade P9 and P22 seamless alloy steel pipes well-suited for high-temperature, high-pressure fluid conveyance applications in power generation, petrochemical, and other industrial sectors. The addition of chromium and molybdenum provides enhanced strength, creep resistance, and corrosion resistance at elevated temperatures.

 

FAQ

Q1: Are you trading company or manufacturer?

A: We are the manufacturer with 3 factories. Specializing in producing welded Wear plate, carbon steel profile, Carbon Products bollard for over 10 years.

Q2:What product information must I provide before making a purchase?
A:Please provide the grade, width, thickness, and surfacetreatment requirements, as well as the quantities you require.

Q3:What are your payment terms?
A: 30% T/T in advance and 70% balance before shipment or based on BL copy or LC at sight.

Q4:Is it possible to send samples?
A: Of course, we offer free samples and express shipping to customers all over the world.

Q5:Do you offer a service for customized products?
A: Yes, we can produce according to your specifications and drawings.

Q6:Can you assist me in importing steel products for the first time?
A: Yes, we have shipping agent who will arrange the shipment with you.
Q7. What is your delivery time?
A: Within 7 working days after receiving your balance payment.