Mild Steel (Low Carbon Steel) is a widely used carbon steel containing a low percentage of carbon, typically around 0.05% to 0.25%, which provides an excellent balance of strength, ductility, and machinability. This material is known for its good formability, ease of welding, and cost-effectiveness, making it one of the most versatile structural metals in industrial applications. Mild Steel offers reliable mechanical strength under normal service conditions and can be readily fabricated into plates, pipes, bars, sheets, and structural sections. Although it has limited inherent corrosion resistance, it can be effectively protected through coatings, galvanizing, or painting for extended service life. Common applications include construction structures, pipelines, pressure vessels, automotive components, machinery parts, storage tanks, and general fabrication where durability, ease of fabrication, and economic efficiency are essential.
Frameworks, Braces, Supports, Shafting, Axles,
Marine and General Engineering Applications
CHEMICAL COMPOSITION OF MS GR 60 / ASME SA 350 ROUND BAR
Grade
C
Mn
P
S
Si
MS Gr 60
0.26 max
0.60 – 1.35
0.035 max
0.035 max
0.40 max
ASME SA 350 LF2
0.30 max
0.60 – 1.35
0.035 max
0.040 max
0.15 – 0.30
MECHANICAL PROPERTIES OF MS GR 60 / ASME SA 350 ROUND BAR
Grade
Tensile Strength (MPa)
Yield Strength (MPa)
Elongation (%)
MS Gr 60
415 – 550
240 min
22 min
ASME SA 350 LF2
485 – 620
250 min
20 min
💡 Practical Difference in Use
Use MS Grade 60 & MS ASME SA 350 Round Bars when: higher strength, reliable load-bearing capacity, and dependable performance in structural or pressure-related applications are required. MS Grade 60 is preferred for heavy structural use, while ASME SA 350 is selected for pressure and low-temperature services.
→ Example: structural supports, reinforced frames, anchor rods, flanges, valves, and pressure system components.
Bright Finished / Machined MS Grade 60 & SA 350 Round Bars when: accurate dimensions, smooth surface finish, and consistent machining performance are essential for critical structural and pressure parts.
→ Example: high-strength bolts, studs, precision shafts, valve stems, and machined fittings.
Applications of MS Grade 60 & MS ASME SA 350 Round Bars
These round bars are commonly used where higher strength, structural reliability, and pressure integrity are required.
Construction & Infrastructure: Columns, reinforcements, anchor rods.
Pressure Equipment: Flanges, valves, bolting.
Heavy Engineering: Shafts, couplings, frames.
When to Choose MS Grade 60 & MS ASME SA 350 Round Bars?
Selection depends on load requirements, pressure rating, operating temperature, fabrication method, and applicable design codes.
Choose these Round Bars when:
Higher yield and tensile strength are required
Used in load-bearing structural members
Pressure-retaining components are involved
Good weldability and machinability are needed
Compliance with structural or ASME codes is required
Long-term reliability and safety are critical
Bright / Machined Grades are preferred when:
Close dimensional tolerances are required
Precision machining is involved
Uniform mechanical properties are needed
Used in anchor bolts, studs, and fasteners
Applied in valves, flanges, and pressure parts
Used in safety-critical applications
Industries That Use MS Grade 60 & MS ASME SA 350 Round Bars
These round bars are widely used in industries requiring high strength, pressure safety, and structural performance.
Construction & Infrastructure
Used in high-load structural works.
Uses
Columns, reinforcements, anchor rods.
Why These Grades?
High strength and structural safety.
Oil & Gas / Energy
Used in pressure piping systems.
Uses
Flanges, studs, bolts, valves.
Why These Grades?
Pressure integrity and code compliance.
Heavy Engineering
Used in heavy-duty machinery and structures.
Uses
Shafts, frames, couplings.
Why These Grades?
High load capacity and long service life.
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