Materials
Carbon Steel: AISI (1018, 1020, 1215)
AISI 1018
Material:
A low-carbon steel containing approximately 0.18% carbon.
Known for its versatility, good machinability, and balanced mechanical properties.
Commonly used for fasteners, pins, shafts, and general-purpose machined components.
Mechanical Properties:
Moderate strength with good ductility and toughness.
Typical tensile strength: ~63–80 ksi depending on processing condition.
Good formability and weldability.
Suitable for carburizing when additional surface hardness is required.
Corrosion Resistance:
Limited natural corrosion resistance.
Typically requires protective coatings such as zinc plating, phosphate coating, black oxide, or painting for corrosive environments.
Manufacturing Considerations:
Excellent machinability and cold-forming characteristics.
Easily welded using conventional methods.
Can be case hardened to improve wear resistance while maintaining a tough core.
Frequently used for high-volume production of fasteners and components.
Applications in Fasteners & Components:
Standard bolts, studs, screws, and threaded rods.
Pins, shafts, and bushings.
General industrial and machinery components.
Components requiring machining and moderate strength.
AISI 1020
Material:
A low-carbon steel containing approximately 0.20% carbon.
Similar to 1018 but with slightly higher carbon content, providing increased strength.
Mechanical Properties:
Higher strength than 1018 while maintaining good ductility.
Typical tensile strength: ~65–85 ksi depending on condition.
Good toughness and impact resistance.
Can be carburized for improved surface hardness.
Corrosion Resistance:
Similar to 1018, with limited inherent corrosion resistance.
Protective coatings are typically required for outdoor or corrosive service.
Manufacturing Considerations:
Good machinability and weldability.
Excellent forging and forming characteristics.
Frequently used where slightly greater strength is desired than 1018 without sacrificing manufacturability.
Applications in Fasteners & Components:
Bolts, studs, nuts, and threaded components.
Forged industrial hardware.
Shafts, couplings, and mechanical assemblies.
Construction, agricultural, and industrial equipment.
AISI 1215
Material:
A low-carbon free-machining steel containing sulfur and phosphorus additions.
Specifically developed for high-speed machining operations.
Mechanical Properties:
Moderate strength, generally comparable to other low-carbon steels.
Typical tensile strength: ~55–78 ksi depending on condition.
Lower ductility and toughness than 1018 or 1020 due to sulfur additions.
Not recommended for applications requiring high impact resistance.
Corrosion Resistance:
Similar to other carbon steels and requires protective coatings when exposed to corrosive environments.
Manufacturing Considerations:
Exceptional machinability (often rated around 170% relative to standard B1112 steel).
Produces excellent surface finishes and tight tolerances.
Ideal for CNC machining and screw machine production.
Weldability is generally poorer than 1018 and 1020 due to sulfur content.
Applications in Fasteners & Components:
Precision-machined fasteners and fittings.
Threaded inserts, bushings, spacers, and connectors.
High-volume screw machine products.
Components where machining efficiency and dimensional accuracy are priorities.
Key Takeaway for Engineered Fasteners
For engineered fastener manufacturing, 1018 and 1020 are commonly selected for cold-headed bolts, studs, and forged components, while 1215 is frequently used for precision-machined specialty fasteners, fittings, and custom componentswhere extensive machining is required.
Materials
BRASS
BRONZE
COPPER
PH STAINLESS STEEL
DOING WHATEVER IT TAKES
Putting Manufacturing Exellence Into Practice
The manufacturing processes, testing capabilities, and quality systems featured throughout WN Global support the production of critical components and engineered fastening solutions across demanding industries. Connect with our team to learn how our manufacturing capabilities can support your project requirements.
