Steel 41L40
Steel alloy 41L40 cold roll is a free-machining alloy (FMA), ideal for parts that require high wear resistance and toughness. The addition of lead makes it easy to machine, but results in lower impact strength than other steel alloys. 41L40 has good strength and ductility, and resists stress and creep at prolonged high temperatures.
41L40 has a machining cost factor of 2.8 when compared to steel 12L14. It is not ideal to weld due to its lead content. 41L40 can be heat treated, plated, forged, and annealed.
Industries & Applications
- Couplings
- Tooling
- Shafts
- Bolts
Steel Parts Gallery
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Steel Cost Comparison
| Type | General Characteristics | Alloy | Common Applications | Tolerances for a 1/2" Dia. Bar | Material Cost Factor | Machining Cost Factor |
|---|---|---|---|---|---|---|
| Steel |
Designed for better machining w/lead additive; direct hardening
|
41L40 |
Couplings, shafts, tooling, bolts
|
Cold drawn 0 |
2.5 | 2.8 |
Common Material Cost Comparison
| Type | General Characteristics | Alloy | Common Applications | Tolerances for a 1/2" Dia. Bar | Material Cost Factor | Machining Cost Factor |
|---|---|---|---|---|---|---|
| Steel |
Designed for excellent machinability. Case hard only
|
12L14 |
Endless commercial products; probably more pounds used in turned products than any other bar stock
|
Cold drawn 0 |
1 | 1 |
| Stainless Steel |
Designed for machining, non-magnetic
|
303 |
Electronic hardware, automotive, aerospace, medical instruments, and many applications requiring corrosion resistance
|
Cold finished +/- .002 |
1.9 | 2.7 |
| Brass |
Strength, corrosion and wear resistance, and excellent machinability
|
C35300 |
Well suited for parts with knurling or threading
|
+0015 | 3.5 | .07 |
| Aluminum |
Designed for machining
|
2011 |
Electronic hardware, endless commercial products
|
Cold finish +/-.0015 |
3.8 | .6 |
| Titanium |
High strength, light weight, good bio-compatibility
|
Ti-6Al-4VEli |
Medical implants
|
Ground & polished +/-.002 |
30.2 | 6 |
To review our Machining Materials Guide, please click here.
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