Loading page
Powder metal FN-0205 (nickel steel)
FN-0205 is an MPIF Standard 35 powder metal nickel steel: iron with 1–3% nickel, up to 2.5% copper and 0.3–0.6% carbon. As sintered at 6.9 g/cm³, FN-0205-25 runs about 50 ksi (340 MPa) tensile with better ductility and impact energy than FC-0208. Heat-treated grades reach 105 ksi (720 MPa) minimum tensile and above, a common choice for hardened PM gears.
- MPIF Standard 35
- FN-0205-20 to -35; FN-0205-80HT to -180HT
- ASTM
- B783 FN-0205
- Composition
- Fe, 1.0–3.0% Ni, 0–2.5% Cu, 0.3–0.6% C
How does it compare?
Typical room-temperature values for FN-0205, against all 48 materials in the library.
- Tensile strength
- 340 MPa62th pct
- Density
- 6.9 g/cm³66th pct
- Elongation
- 2 %0th pct
- Relative cost
- $$$$$
Bars are relative to the strongest, densest or hottest material in the SSG library. Percentile vs all 48 materials.
- Density
- 6.9 g/cm³ · 0.2493 lb/in³
- Tensile strength
- 340 MPa · 49.3 ksi
- Elongation
- 2%
- Elastic modulus
- 135 GPa · 19.6 Msi
- Hardness
- Rockwell B44–78 as sintered; Rockwell C23–40 heat-treated (apparent)
When should you use FN-0205?
Strengths
- Better toughness and impact energy than iron-copper grades
- Strong heat-treat response; HT grades span 80–180 ksi (550–1,240 MPa) minimum tensile
- Near net shape at high volume
- Good wear resistance when quenched and tempered
Watch for
- Nickel adds cost versus FC-0208
- Heat-treated parts have under 1% elongation
- Same PM shape limits: no cross holes or undercuts without secondary machining
- Porosity must be sealed before plating
Typical parts
- Hardened gears and sprockets
- Clutch and transmission parts
- Structural brackets under impact
- Cams, rotors and pump gears
- Lawn and garden drive components
- Power tool gears
How FN-0205 is made into parts
Cost, finishes and design rules for each process in this material.
What does a part in FN-0205 cost?
A representative part, powdered metal. Raw material at about $2.80/kg is one line of it; process time and tooling usually matter more.
Spur gear · Powdered metal
Order total $21,026
- Tooling
- $7,938
- one-time, spread over the order
- Piece price
- $0.50
- before setup + tooling
- Lead time
- 6–9 weeks
- to first production
Size
Drag a row to adjust · click to type
Teeth2424
Module1.501.50
Face width10.010.0 mm
Quantity
Price per part falls as volume rises
Exact quantity2500025000 pcs
Material
Powder metal FN-0205 (nickel steel)
Design checks pass
Open in builderBudgetary estimate for a representative part. Firm quotes come from principals after drawing review.
FN-0205 questions
FN-0205 vs FC-0208?
FC-0208 is the lower-cost default for as-sintered strength. FN-0205 has lower as-sintered strength but better ductility and toughness, and it responds well to heat treatment. Pick FN-0205 for hardened gears and parts that see shock loads.
Can FN-0205 be heat treated?
Yes. Quench and temper gives apparent hardness of about HRC 23–40 and minimum tensile strengths from 80 to 180 ksi (550–1,240 MPa) depending on density and grade. Tempering is typically around 400 °F (205 °C).
What density should I specify for PM parts?
Higher density raises strength, fatigue life and cost. Single-press parts typically run 6.6–7.1 g/cm³. Double pressing, warm compaction or special processes push past 7.2 g/cm³ for demanding gears.
Similar materials
Quote it in FN-0205.
Upload CAD or start from a template. The builder prices it in this material and the alternatives.