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- Mild Steel S235JR
Mild Steel S235JR
Material Type
Metal
Material Name
Mild Steel S235JR
Alternative Names
1.0038 | Fe 360 B
Process Compatibility
CNC Milling, CNC Turning
introduction
Mild Steel S235JR in CNC Machining
Mild Steel S235JR is a low-carbon structural steel with good weldability and machinability.
S235JR typically contains low carbon, manganese, phosphorus, sulfur, and trace amounts of other elements. In CNC machining S235JR, we use carbide or high-speed steel tools for turning, milling, and drilling. We maintain proper speeds, feeds, and coolant for good results. It's weldable, but post-weld machining may be necessary for certain applications. S235JR is commonly used in various construction and structural applications, such as buildings, bridges, and machinery.
"S'' stands for structural steel. The numerical component "235" represents its minimum yield strength in megapascals (MPa), indicating the amount of stress the material can withstand before deformation. Additionally, the "JR" signifies that the steel has undergone a Charpy V-notch impact test at room temperature, ensuring a specified level of impact resistance.
Properties
Properties Table of Mild Steel S235JR
MECHANICAL PROPERTIES | |
---|---|
Ultimate Tensile Strength | 340-470 MPa |
Yield Strength | 170-340 MPa |
Young's Modulus(Elasticity) | 200 GPa |
Elongation at Break | 23-28% |
Physical Properties | |
Corrosion Resistance | Poor |
Magnetism | Generally non-magnetic |
UV Resistance | Limited UV resistance |
Weldability | Good weldability with proper procedures |
Thermal Properties | |
Maximum Service Temperature | Approximately 200°C(392°F) |
Thermal Expansion Coefficient | 12.2 x 10^-6/°C(20-100°C) |
Thermal Conductivity | 25 W/(m·°C) |
TECHNOLOGY OVERVIEW
Basic Knowledge of Mild Steel S235JR
What is Mild Steel S235JR?
S235JR (1.0038 steel) is a European standard hot rolled non-alloy structural steel with good plasticity, toughness, and weldability.
The material has various delivery conditions like +AR (as-rolled), +N (normalized), +M (thermomechanically formed), +C (cold work hardened), +A (soft annealed), and +AT (solution annealed).
Advantages of Mild Steel S235JR
Excellent weldability
Highly formable
Versatility
Affordable
Moderate Strength
Widely available
Applications of Mild Steel S235JR
Structural beams and columns
Automotive chassis components
Sheet metal for construction
General machinery parts
Bridges and infrastructure
Railway tracks and components
FAQ
Mild Steel S235JR Buying FAQs
Other Materials
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Mild Steel 1045
Mild steel 1045 is a medium carbon steel with about 0.45% carbon content. It has good strength, toughness, and wear resistance.
Mild Steel 1018
Mild Steel 1018, known as low-carbon steel, can be easily drilled, turned, milled, and tapped.
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