ASTM A312 / A249 S31254 (254 SMO) Stainless Steel 304L Welded Pipe

ASTM A312 / A249 S31254 (254 SMO) Stainless Steel 304L Welded Pipe

1. Technique:Longitudinal Electronic Resistance Welding (ERW),High Frequence Welding (HFW) 2. Material Quality:Steel Grade——Q195/Q215/Q235/Q345, etc. Material Type——Available in cold rolled and hot rolled 3. Size: OD 30-3000MM WT 10-20MM Length 1m-12m or as your requirement 4. Surface:...

Product Introduction

The company designs and manufactures 321 stainless steel pipes, square steel profile, boiler steel tubing in strict accordance with standards and implements strict quality control standards. Our spirit is 'innovation is life, customer satisfaction is responsibility.' Serving every Chinese and foreign customers. The production process of our products is complex, and our production process has a high degree of automation and informatization. We are adhering to the purpose of making the products become classics and the classics become eternal, and leading the future of the enterprise in this way. In the future development of the company, for the benefit of customers, we will continue to work hard, reform and innovate, and create better first-class products for users.

Product Parameters

 

A672 Pipe Smo 254

 

Introduction

A672 Pipe SMO 254 is a high-alloy austenitic stainless steel designed for use in aggressive environments such as seawater, acidic solutions, and chloride-containing environments. This article provides an overview of its material, specifications, key features, and various properties.

 

Material

A672 Pipe SMO 254 is a grade of stainless steel that contains significant amounts of chromium, nickel, molybdenum, and nitrogen. These elements contribute to its exceptional corrosion resistance and high strength.

 

Specification

The specifications for A672 Pipe SMO 254 are generally outlined in the ASTM A672/A672M standard. Below are the general specifications:

Standard: ASTM A672/A672M

Grade: SMO 254

Size Range: 1/2" to 36"

Wall Thickness: SCH 5S to SCH XXS

 

Key Features

High Corrosion Resistance: Exceptional resistance to corrosion in acidic and chloride-containing environments.

High Strength: Good mechanical properties at both ambient and elevated temperatures.

High Weldability: Excellent weldability and formability.

Low Magnetic Permeability: Often used in magnetic-sensitive applications due to its low magnetic permeability.

 

Chemical Composition

The chemical composition of A672 Pipe SMO 254 is as follows (in weight %):

Element C Mn Si P S Cr Ni Mo Cu N
Percentage ≤0.02 ≤1.00 ≤0.80 ≤0.03 ≤0.01 19.5-20.5 17.5-18.5 6.0-6.5 ≤0.5 0.18-0.22

 

Mechanical Properties

The mechanical properties of A672 Pipe SMO 254 at room temperature are as follows:

Property Value
Tensile Strength ≥650 MPa
Yield Strength ≥300 MPa
Elongation ≥35%
Hardness ≤270 HV

 

Physical Properties

The physical properties of A672 Pipe SMO 254 are as follows:

Property Value
Density 8.0 g/cm³
Melting Point 1320-1390°C
Thermal Conductivity 12 W/(m·K)
Electrical Resistivity 80 µΩ·cm

 

Process Performance

The process performance of A672 Pipe SMO 254 is as follows:

Property Value
Machinability Good
Weldability Excellent
Formability Excellent
Heat Treatment Annealing at 1090-1150°C, followed by rapid cooling

 

Steel Grade

The steel grade for A672 Pipe SMO 254 is ASTM A312 TP254 SMO or equivalent.

 

Application

A672 Pipe SMO 254 is widely used in various industries due to its high corrosion resistance and mechanical properties. Some of the common applications include:

Oil and Gas Industry: Offshore and onshore installations

Chemical Processing: Equipment for handling corrosive chemicals

Desalination Plants: Seawater desalination equipment

Pulp and Paper Industry: Bleaching equipment

 

Possible Alternative Grades

While A672 Pipe SMO 254 offers exceptional properties, there are alternative grades available that can be considered for similar applications:

Austenitic Stainless Steels: 316L, 904L

Duplex Stainless Steels: SAF 2205, SAF 2507

Super Duplex Stainless Steels: Zeron 100, Ferralium 255

 

Conclusion

A672 Pipe SMO 254 is a high-performance stainless steel grade known for its excellent corrosion resistance, high strength, and weldability. It is widely used in aggressive environments across various industries. Understanding its material properties, specifications, and alternative grades can help in selecting the right material for specific applications.

 

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We operate in good faith and provide high-quality ASTM A312 / A249 S31254 (254 SMO) Stainless Steel 304L Welded Pipe and perfect pre-sale and after-sale service, aiming to be your efficient assistant. Continuous investment in innovation provides a strong guarantee for our company to grasp the consumer trend and lead the development direction of the industry. The company has been adhering to the service and development concept of "little by little to do service, diligent and earnest to seek development".

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