Stainless Steel Alloy 17-4 PH
Stainless steel alloy 17-4 PH is a hard alloy, ideal for parts that require high strength and corrosion resistance. It withstands corrosive attacks better than any stainless steel. When heat-treated, the strength and ductility of 17-4 PH is greatly enhanced.
17-4 PH has a machining cost factor of 5.0 when compared to steel 12L14. It is forgeable and readily weldable and does not require pre- or post-heating processing. 17-4 PH can be heat treated and annealed.
Industries & Applications
- Shafts
- Seals
- Medical equipment
- Aerospace components
Stainless Steel 17-4 PH Characteristics
|
TEMPER |
Yield Strength |
Ultimate Tensile Strength |
Modulus of Elasticity |
Brinell Hardness (3,000kg/10mm) |
|
H900 |
180 |
200 |
29,000 |
450 |
|
H1025 |
160 |
170 |
29,000 |
380 |
|
H1100 |
130 |
160 |
29,000 |
350 |
|
H1150 |
110 |
150 |
29,000 |
320 |
Stainless Steel Cost Comparison
| Type | General Characteristics | Alloy | Common Applications | Tolerances for a 1/2" Dia. Bar | Material Cost Factor | Machining Cost Factor |
|---|---|---|---|---|---|---|
| Stainless Steel |
Excellent corrosion resistance and heat treatable
|
17-4 PH |
Medical, aerospace, applications needing corrosion resistance and hardness
|
+/-.002 | 3.5 | 5 |
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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