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Mild Steel S355J2
Material Type
Metal
Material Name
Mild Steel S355J2
Alternative Names
1.0577 | 1522H | Fe 510 D
Process Compatibility
CNC Milling, CNC Turning
introduction
Mild Steel S355J2 in CNC Machining
Mild Steel S355J2 is a low-carbon structural steel with excellent weldability and machinability.
In CNC machining, S355J2 is often used for components requiring precision and moderate to high mechanical performance. CNC machining processes, including milling and turning, can be efficiently applied to shape and create intricate details in components made from S355J2 steel. We consider cutting speeds, feeds, and tool selection to optimize machining performance.
The composition of S355J2 typically includes elements such as carbon, manganese, silicon, and trace amounts of other alloying elements. S355J2 Steel is used for structures facing heavy loads because of its exceptional strength. Its durability is good for earthquake-resistant constructions and high-speed railways. The steel's resilience in low temperatures benefits aerospace, outdoor construction, and offshore operations.
Properties
Properties Table of Mild Steel S355J2
| MECHANICAL PROPERTIES | |
|---|---|
| Ultimate Tensile Strength | 450-580 MPa |
| Yield Strength | 265-340 MPa |
| Young's Modulus(Elasticity) | 217 GPa |
| Elongation at Break | 14-20% |
| Physical Properties | |
| Corrosion Resistance | Moderate corrosion resistance |
| Magnetism | Generally magnetic |
| UV Resistance | Limited UV resistance |
| Weldability | Good weldability with proper procedures |
| Thermal Properties | |
| Maximum Service Temperature | Approximately 500°C(932°F) |
| Thermal Expansion Coefficient | 10.8 x 10^-6/°C(20-100°C) |
| Thermal Conductivity | 50.9 W/m·K(20°C) |
TECHNOLOGY OVERVIEW
Basic Knowledge of Mild Steel S355J2
What is Mild Steel S355J2?
S355J2 is a versatile steel with medium tensile strength, low carbon, and good weldability. It exhibits excellent impact resistance, even in sub-zero temperatures, and is often supplied in untreated or normalized conditions.
It has moderate corrosion resistance, so it may need extra protection like galvanization or specialized coatings, especially in wet or corrosive environments.
Advantages of Mild Steel S355J2
High Strength which is perfect for structural applications
Good Weldability
Durability
Versatility
Moderate Corrosion Resistance
Cost-effective compared to other high-strength materials
Impact Resistance
Ease of Machining
Applications of Mild Steel S355J2
Structural components in buildings and bridges
Offshore platforms and structures
Shipbuilding, including hulls and components
Industrial machinery and equipment
Transmission towers and poles
Railway rolling stock components
Construction of storage tanks and containers
General fabrication and welding applications
FAQ
Machining Mild Steel S355J2 Buying FAQ
S355JR and S355J2 are both grades of structural steel. The main difference lies in their impact energy values; S355J2 has higher impact energy at -20°C.
"S" signifies "structural steel," and 355 indicates the minimum yield strength for steel thickness up to 16 mm. "J2" denotes a minimum impact energy of 27 J at -4°F.
S355 steel, including S355JR and S355J2, has moderate corrosion resistance, but it can rust. Exposure to environmental conditions may lead to rusting over time.
Other Materials
Stainless Steel 303
Stainless Steel 303 is widely used in CNC machining due to its exceptional machinability. It belongs to the 300 series of stainless steel.
More info about Stainless Steel 303
Mild Steel 1018
Mild Steel 1018, known as low-carbon steel, can be easily drilled, turned, milled, and tapped.
More info about Mild Steel 1018
Alloy Steel 1215
Alloy Steel 1215 is not a common alloy steel. It is a resulfurized and rephosphorized steel known as free machining steel.
More info about Alloy Steel 1215
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