Introduction
Mild Steel (MS) is a fundamental material widely used in the industrial and construction sectors due to its excellent mechanical properties and affordability. At the same time, ASTM A213 pipes are critical in various high-temperature and high-pressure applications, particularly in boilers, superheaters, and heat exchangers. This article covers the MS Material (Mild Steel Material) Composition and Properties and explains the DIMENSIONS AND SIZES OF ASTM A213 PIPE, helping buyers and engineers make informed decisions.
What is MS Material (Mild Steel Material)?
Mild Steel, commonly referred to as MS Material, is a type of low-carbon steel with a carbon content typically ranging between 0.05% to 0.25%. Its lower carbon percentage makes it more ductile, machinable, and weldable compared to other types of steel. This material is used in manufacturing pipes, structural components, automotive parts, and general fabrication work.
Composition of MS Material
Understanding the composition of mild steel helps in evaluating its performance under various operating conditions. Here is the typical chemical composition:
- Carbon (C): 0.05% to 0.25%
- Manganese (Mn): 0.25% to 0.60%
- Sulfur (S): ≤ 0.05%
- Phosphorus (P): ≤ 0.05%
- Iron (Fe): Balance
These elements contribute to its strength, flexibility, and corrosion resistance to a certain degree. The low carbon content ensures that the material is easy to cut, weld, and form into different shapes.
Key Properties of Mild Steel Material
MS material is preferred across various industries due to its excellent mechanical and physical properties. Some of the notable characteristics include:
- High Ductility: It can be stretched or shaped without breaking.
- Excellent Weldability: Ideal for fabrication and structural applications.
- Good Tensile Strength: Approximately 400–550 MPa depending on treatment.
- Cost-effective: Cheaper than stainless steel or high-carbon alloys.
- Magnetic Properties: MS is ferromagnetic and can be magnetized.
These properties make mild steel suitable for piping systems, including water supply, HVAC, construction scaffolding, and more.
Applications of MS Material in Pipe Manufacturing
At Tianjin United Steel Pipe Co., Ltd, we manufacture high-quality mild steel pipes designed to meet various industry standards. Our ERW Pipes, LSAW Pipes, and Seamless Steel Pipes are often manufactured using MS material due to its versatility and strength.
Common applications include:
- General construction
- Structural steel frameworks
- Oil and gas transmission
- Water and sewage piping
- Solar tracker torque tubes
- Heat exchangers and condensers
Introduction to ASTM A213 Pipe
The ASTM A213 specification covers seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes. These pipes are designed for high-temperature services, especially where elevated corrosion resistance and strength are required.
This standard is widely accepted in industries like petrochemical, chemical processing, and power generation.
DIMENSIONS AND SIZES OF ASTM A213 PIPE
The dimensions and sizes of ASTM A213 pipe vary based on the application and the grade (such as T2, T5, T9, T11, T22, T91, etc.). Below is a detailed breakdown of common size ranges and dimensional characteristics:
Standard Pipe Dimensions
| Parameter | Specification Range |
| Outer Diameter (OD) | 6.35 mm to 101.60 mm (¼” to 4″) |
| Wall Thickness | 0.8 mm to 12 mm |
| Length | Up to 24 meters (Custom lengths available) |
| Grades Available | T2, T5, T9, T11, T22, T91, etc. |
Tolerance Levels
- OD Tolerance: ±0.5%
- Wall Thickness Tolerance: ±10%
- Length Tolerance: As per customer requirements or ASTM standards
we offer ASTM A213 pipes with precise tolerance control, certified materials, and complete documentation for quality assurance.
Material Grades in ASTM A213 and Their Properties
Each grade within ASTM A213 has its unique chemical and mechanical properties. For instance:
- T11: Chromium-molybdenum alloy steel, suitable for moderate temperature applications.
- T22: Offers improved strength and oxidation resistance at high temperatures.
- T91: High-strength grade used in ultra-supercritical boilers.
These grades are selected based on service conditions like pressure, temperature, and fluid characteristics.
Why Choose Tuspipe for MS and ASTM A213 Pipes?
Tianjin United Steel Pipe Co., Ltd is a leading manufacturer of carbon steel and alloy steel pipes, known for precision, performance, and consistency. Here’s why clients across the globe choose us:
- Certified Materials: We follow ASTM, ASME, and ISO standards strictly.
- Custom Manufacturing: Pipes are made to customer specifications.
- On-time Delivery: Large inventory and efficient logistics.
- Competitive Pricing: Affordable without compromising on quality.
- Testing and Inspection: UT, RT, and hydrostatic testing as per client needs.
We supply both MS material pipes and ASTM A213 pipes to industries like oil & gas, construction, energy, and manufacturing.
Final Thoughts
Understanding the MS Material (Mild Steel Material) Composition and Properties is essential when choosing the right pipe for general construction or industrial use. Similarly, knowledge of the DIMENSIONS AND SIZES OF ASTM A213 PIPE is crucial for applications requiring heat resistance and pressure tolerance.
At Tuspipe, we ensure that all our products meet industry standards while offering full customization to meet your project requirements. Whether you need mild steel ERW pipes or seamless ASTM A213 pipes, we are your trusted partner in steel piping solutions.
