AISI 1215
It is a free-machining carbon steel widely used for components requiring excellent machinability and moderate strength.
Descriptions
1. Chemical Composition
The chemical composition of AISI 1215 is designed to enhance machinability while maintaining structural integrity.
Element | Content (%) | Role |
Carbon (C) | 0.09 max | Provides basic strength and hardness |
Manganese (Mn) | 0.75-1.05 | Improves hardenability and deoxidization |
Phosphorus (P) | 0.04-0.09 | Enhances machinability (fors chips) |
Sulfur (S) | 0.26-0.35 | Promotes chip-breaking during cutting |
Silicon (Si) | 0.10 max | Deoxidizer; minimal impact on properties |
Iron (Fe) | Balance | Base metal |
2. Mechanical Properties
AISI 1215 forgings exhibit moderate strength and good ductility, suitable for non-critical structural parts. Properties may vary slightly depending on forging conditions and heat treatment.
Property | Value | Test Standard |
Tensile Strength | 540-620 MPa | ASTM A370 |
Yield Strength(0.2%offset) | 415-480 MPa | ASTM A370 |
Elongation (% in 50 mm) | 10-15% | ASTM A370 |
Reduction of Area | 25-35% | ASTM A370 |
Hardness (Brinell) | 167-201 HB | ASTM E10 |
Machinability Rating | 85-90%(vs.100% for 12L14) | N/A |
3. Key Advantages
Superior Machinability: Reduced tool wear and high-speed cutting compatibility.
Cost-Effective: Ideal for mass-produced, precision-machined components.
Consistent Quality: Predictable performance in forging and machining processes.
4. Typical Product Names
Machined Shafts
Flanged Bushings
Hydraulic Manifolds
Threaded Fasteners
Pneumatic Connectors
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Applications
AISI 1215 forgings are ideal for parts requiring precision machining and moderate mechanical performance:
Automotive: Fuel system fittings, bushings, sensor housings.
Industrial Machinery: Shafts, gears, hydraulic components.
Fasteners: Bolts, screws, nuts (high-volume production).
Consumer Hardware: Valve stems, couplings, decorative fittings.