Steel 230M07, also known as EN1A, is a low-carbon free-cutting steel that is commonly used in CNC machining. It is well-regarded for its machinability and is often chosen for high-volume production runs.
Composition: Contains carbon (C) typically in the range of 0.07%, manganese (Mn) around 0.85-1.15%, and small amounts of phosphorus (P) and sulfur (S), with sulfur being deliberately added to enhance machinability.
Mechanical Properties:
Tensile Strength: Approximately 440-490 MPa.
Yield Strength: Around 290-340 MPa.
Hardness: Typically 115-170 HB.
Machinability: Excellent, thanks to the sulfur content, which forms manganese sulfide inclusions that act as chip breakers during machining.
Weldability: Generally poor due to high sulfur content, but can be welded with proper precautions and filler materials.
Formability: Good, suitable for bending, threading, and other forming operations.
Surface Finish: Produces a good surface finish when machined, making it ideal for precision components.
Automotive Industry: Components like gears, shafts, and fasteners due to its high machinability and acceptable mechanical properties.
Hydraulic Components: Fittings, valves, and connectors where precision and surface finish are critical.
General Engineering: A wide range of turned parts, bushings, and threaded components.
Fasteners: Screws, bolts, and other types of fasteners requiring precision and repeatability.
Cutting Tools: High-speed steel (HSS) or carbide tools are recommended. Carbide tools can provide longer tool life and better finishes.
Speeds and Feeds: High cutting speeds and feeds can be used due to the material's excellent machinability. Fine-tuning these parameters helps achieve the desired surface finish and tool life.
Coolant: Using a suitable coolant helps control temperature and improve tool life. Water-soluble coolants are commonly used.
Chip Control: The material tends to form short, brittle chips that are easy to manage, reducing the risk of entanglement and machine downtime.
Surface Treatments: Parts may undergo additional treatments like case hardening or coating to enhance wear resistance or corrosion protection, depending on the application.
Standards: Known under various standards, including EN1A (BS 970 230M07) in the UK.
Suppliers: Widely available from steel stockists and suppliers who provide materials in various forms such as bars, rods, and billets, often pre-cut to specific sizes for CNC machining.
In summary, Steel 230M07 (EN1A) is an excellent choice for CNC machining applications that require high machinability, good surface finish, and precision. Its properties make it suitable for a variety of industries, particularly for high-volume production of components where efficiency and cost-effectiveness are paramount.
Steel 230M07, also known as EN1A, is a low-carbon free-cutting steel that is commonly used in CNC machining. It is well-regarded for its machinability and is often chosen for high-volume production runs.
Composition: Contains carbon (C) typically in the range of 0.07%, manganese (Mn) around 0.85-1.15%, and small amounts of phosphorus (P) and sulfur (S), with sulfur being deliberately added to enhance machinability.
Mechanical Properties:
Tensile Strength: Approximately 440-490 MPa.
Yield Strength: Around 290-340 MPa.
Hardness: Typically 115-170 HB.
Machinability: Excellent, thanks to the sulfur content, which forms manganese sulfide inclusions that act as chip breakers during machining.
Weldability: Generally poor due to high sulfur content, but can be welded with proper precautions and filler materials.
Formability: Good, suitable for bending, threading, and other forming operations.
Surface Finish: Produces a good surface finish when machined, making it ideal for precision components.
Automotive Industry: Components like gears, shafts, and fasteners due to its high machinability and acceptable mechanical properties.
Hydraulic Components: Fittings, valves, and connectors where precision and surface finish are critical.
General Engineering: A wide range of turned parts, bushings, and threaded components.
Fasteners: Screws, bolts, and other types of fasteners requiring precision and repeatability.
Cutting Tools: High-speed steel (HSS) or carbide tools are recommended. Carbide tools can provide longer tool life and better finishes.
Speeds and Feeds: High cutting speeds and feeds can be used due to the material's excellent machinability. Fine-tuning these parameters helps achieve the desired surface finish and tool life.
Coolant: Using a suitable coolant helps control temperature and improve tool life. Water-soluble coolants are commonly used.
Chip Control: The material tends to form short, brittle chips that are easy to manage, reducing the risk of entanglement and machine downtime.
Surface Treatments: Parts may undergo additional treatments like case hardening or coating to enhance wear resistance or corrosion protection, depending on the application.
Standards: Known under various standards, including EN1A (BS 970 230M07) in the UK.
Suppliers: Widely available from steel stockists and suppliers who provide materials in various forms such as bars, rods, and billets, often pre-cut to specific sizes for CNC machining.
In summary, Steel 230M07 (EN1A) is an excellent choice for CNC machining applications that require high machinability, good surface finish, and precision. Its properties make it suitable for a variety of industries, particularly for high-volume production of components where efficiency and cost-effectiveness are paramount.
