Machining 17-4 PH Stainless Steel (Condition H900 / H1150): Speeds & Feeds, Tooling & Best Practices
Technical machining guide for 17-4 PH Stainless Steel (Condition H900 / H1150) (Precipitation-Hardening Stainless): optimal cutting speeds (60 - 110 m/min), feeds (0.06 - 0.16 mm/tooth), hardness (33-44 HRC), and precision manufacturing practices.
Engineering Specifications & Parameters
| Chip Load (fz) | 0.06 - 0.16 mm/tooth |
| Material Grade | 17-4 PH Stainless Steel (Condition H900 / H1150) |
| Material Hardness | 33-44 HRC |
| Cutting Speed (Vc) | 60 - 110 m/min |
| Alloy Classification | Precipitation-Hardening Stainless |
| Primary Applications | Aerospace landing gear components, offshore pump shafts, and... |
Material Properties & Machinability Profile
17-4 PH Stainless Steel (Condition H900 / H1150) is classified as a Precipitation-Hardening Stainless widely specified for mission-critical components requiring Aerospace landing gear components, offshore pump shafts, and surgical orthopedic reamer shafts..
Engineering Kinematics & Cutting Parameters
- Material Hardness: 33-44 HRC.
- Recommended Cutting Speed ($V_c$): 60 - 110 m/min with dedicated substrate coatings.
- Chip Load ($f_z$): Maintained between 0.06 - 0.16 mm/tooth to prevent tool rubbing or excessive mechanical shock.
- Machinability Challenge: High tensile strength up to 1310 MPa with martensitic corrosion resistance; machine in Condition H1150 before final aging.
- Tooling Strategy: Employs high-pressure flood coolant (>= 30 bar) and micro-grain carbide or specialized inserts with positive rake geometries.
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Frequently Asked Questions
What cutting speed is recommended for 17-4 PH Stainless Steel (Condition H900 / H1150)?
Optimal cutting speeds range from 60 - 110 m/min depending on roughing vs finishing passes and machine tool rigidity.
How does UCAN ROBOT manage tool wear when cutting 17-4 PH Stainless Steel (Condition H900 / H1150)?
We implement in-process tool monitoring, rigid toolholder systems, and high-pressure through-spindle coolant to dissipate cutting heat immediately.
