Steel 3310 Carburized 58-62 HRC (single quench)
Heat-treated state
AISI/SAE 3310 · UNS G33100
Carburized 58-62 HRC (single quench) = carburized, single quenched and tempered
Lower-cost route with less distortion than double quench; slightly coarser case structure and marginally lower core toughness.
Values for the Carburized 58-62 HRC (single quench) condition
Other 3310 tempers and conditions
3310 is listed in 9 conditions; see the grade overview at 3310.
- Spheroidize Annealed
- Annealed
- Normalized+Tempered
- Hot Rolled
- Normalized
- Cold Drawn
- Q&T 30-36 HRC (core, uncarburized)
- Carburized 58-62 HRC (double quench)
- Carburized 58-62 HRC (single quench)
Compare all 9 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
optimized for machining and cold work | Choose when heavy hobbing, broaching or cold heading of the blank is required before carburizing. | 400 | 620 | 28 | 170 HB | 5.7 % IACS |
AnnealedDefault full anneal, bar/forging stock for carburizing | Standard stocking condition: softest, most machinable state for rough-cutting gear blanks before carburizing. | 425 | 665 | 26 | 187 HB | — |
Normalized and tempered | Preferred pre-carburizing condition for large forgings: refined grain plus softening temper for cutting. | 480 | 720 | 24 | 17 HRC | 5.7 % IACS |
as-rolled bar | Lowest-cost mill condition; usually re-annealed or normalized before machining because as-rolled hardness is variable. | 520 | 780 | 20 | 21 HRC | 5.7 % IACS |
900–925 °C air cool | Grain refinement / structure homogenization of forgings; note the high Ni-Cr content makes this grade air-hardening, so normalized hardness is high. | 560 | 830 | 20 | 24 HRC | 5.6 % IACS |
Cold drawn (annealed and cold finished) bar | Use for small-diameter shafts and pins needing close tolerance and better surface before carburizing. | 650 | 760 | 14 | 20 HRC | 5.7 % IACS |
Direct hardened and tempered | For non-wearing structural parts (shafts, links) that need very high toughness at moderate strength without a hard case. | 790 | 1,050 | 17 | 33 HRC | — |
Carburized, double quenched and tempered | The service condition for aerospace gears and bearing races: hard wear-resistant case over a very tough low-carbon martensitic core. | 860 | 1,170 | 15 | 60 HRC | — |
Carburized 58-62 HRC (single quench)This page Carburized, single quenched and tempered | Lower-cost route with less distortion than double quench; slightly coarser case structure and marginally lower core toughness. | 900 | 1,240 | 13 | 60 HRC | — |
What is 3310 Carburized 58-62 HRC (single quench)?
3310 Carburized 58-62 HRC (single quench) is 3310 heat treated to Carburized 58-62 HRC (single quench) — lower-cost route with less distortion than double quench; slightly coarser case structure and marginally lower core toughness. 3310 Carburized 58-62 HRC (single quench) has a yield strength of 900 MPa (131 ksi) and a tensile strength of 1,240 MPa (180 ksi) — stronger than 90% of steel grades. Elongation at break is 13% and the elastic modulus is 205 GPa (29.7 Msi). 3310 Carburized 58-62 HRC (single quench) has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,420°C (2,588 °F). Annealed is the default condition FabDigit quotes; Carburized 58-62 HRC (single quench) is available on request or by drawing note.
Advantages
- High strength — 900 MPa (131 ksi), better than 90% of steel grades
- Polishes to a fine finish — 65/100, better than 78% of steel grades
Limitations
- Limited service temperature — 175°C (347 °F), worse than 99% of steel grades
- High embodied carbon — 2.6 kg CO₂/kg, worse than 87% of steel grades
- Poor heat conductor — 33 W/m·K (19.1 BTU/hr·ft·°F), worse than 80% of steel grades
- Limited ductility — 13%, worse than 78% of steel grades
- Difficult to machine — 40/100, worse than 77% of steel grades
3310 Carburized 58-62 HRC (single quench) properties
Typical room-temperature values for 3310 Carburized 58-62 HRC (single quench); 10 are specific to this condition. Other listed values are 3310 reference data and may not represent this condition. Bars are the position among steel grades.
Physical3
3310 Carburized 58-62 HRC (single quench) has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,420°C (2,588 °F).
Mechanical13
3310 Carburized 58-62 HRC (single quench) has a yield strength of 900 MPa (131 ksi) and a tensile strength of 1,240 MPa (180 ksi) — stronger than 90% of steel grades. Elongation at break is 13% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
3310 Carburized 58-62 HRC (single quench) is rated for continuous service to 175°C (347 °F). It conducts heat at 33 W/m·K (19.1 BTU/hr·ft·°F), worse than 80% of steel grades. Thermal expansion is 11.5 µm/m·K (6.39 µin/in·°F).
Electrical2
3310 Carburized 58-62 HRC (single quench) has an electrical resistivity of 3×10⁻⁷ Ω·m.
Chemical & Environmental3
Corrosion resistance is poor (15/100), better than 75% of steel grades.
Sustainability4
Producing a kilogram of 3310 Carburized 58-62 HRC (single quench) takes about 36 MJ of energy and emits 2.6 kg of CO₂ — more than 89% of steel grades. Typical recycled content is 25%.
Manufacturability7
3310 Carburized 58-62 HRC (single quench)'s machinability is fair (40/100, worse than 77% of steel grades); weldability poor (25/100); formability fair (45/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 3310 Carburized 58-62 HRC (single quench)
Is 3310 easy to machine?
Machine in the annealed/spheroidized state with sharp carbide tooling and rigid setups; the high-Ni matrix is gummy and work-hardens, so use positive rake, generous feed and flood coolant, and finish-grind after carburizing.
Can 3310 be welded?
Poor weldability — the alloy air-hardens; if welding is unavoidable use low-hydrogen or matching filler, 250–300 °C preheat, low interpass restraint and immediate post-weld temper, and never weld carburized surfaces.
Can 3310 be formed, bent or molded?
Hot forge at 1100–1200 °C, finish above 950 °C and slow-cool or normalize plus temper; cold forming is limited to mild bends/heading in the annealed condition.
What surface finishes work on 3310?
No corrosion resistance of its own: after tempering apply black oxide, manganese phosphate, or cadmium/zinc-nickel plate with hydrogen-embrittlement bake; case-carburized surfaces are typically hard-ground and honed.
3310 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| C | 0.08 – 0.13 | 0.1 |
| Mn | 0.45 – 0.6 | 0.52 |
| Si | 0.2 – 0.35 | 0.27 |
| Niprimary source of core toughness and hardenability | 3.25 – 3.75 | 3.5 |
| Cr | 1.4 – 1.75 | 1.57 |
| P0.015 max for electric-furnace E3310 | ≤ 0.03 | — |
| S0.015 max for electric-furnace E3310 | ≤ 0.03 | — |
| Fe | balance | — |
3310 Carburized 58-62 HRC (single quench) — frequently asked
What is 3310 Carburized 58-62 HRC (single quench) used for?
3310 Carburized 58-62 HRC (single quench) is typically used for aircraft gearbox gears, high-toughness shafts, helicopter transmission pinions, bearing races, splined couplings and heavy-duty gear sets. In short: highest core toughness; aerospace gear heritage; hardest of family to machine.
What is the yield strength of 3310 Carburized 58-62 HRC (single quench)?
3310 Carburized 58-62 HRC (single quench) has a typical yield strength of 900 MPa (131 ksi) and a tensile strength of 1,240 MPa (180 ksi) — stronger than 90% of steel grades. Strength varies by condition: see the 9 listed tempers.
Is 3310 Carburized 58-62 HRC (single quench) easy to machine?
Not especially — machinability is rated fair (40/100, worse than 77% of steel grades). Machine in the annealed/spheroidized state with sharp carbide tooling and rigid setups; the high-Ni matrix is gummy and work-hardens, so use positive rake, generous feed and flood coolant, and finish-grind after carburizing.
Can 3310 Carburized 58-62 HRC (single quench) be welded?
Not readily — weldability is rated poor (25/100). Poor weldability — the alloy air-hardens; if welding is unavoidable use low-hydrogen or matching filler, 250–300 °C preheat, low interpass restraint and immediate post-weld temper, and never weld carburized surfaces.
What surface finishes work on 3310 Carburized 58-62 HRC (single quench)?
No corrosion resistance of its own: after tempering apply black oxide, manganese phosphate, or cadmium/zinc-nickel plate with hydrogen-embrittlement bake; case-carburized surfaces are typically hard-ground and honed.
Can 3310 Carburized 58-62 HRC (single quench) be formed, bent or molded?
Hot forge at 1100–1200 °C, finish above 950 °C and slow-cool or normalize plus temper; cold forming is limited to mild bends/heading in the annealed condition.
What is the maximum service temperature of 3310 Carburized 58-62 HRC (single quench)?
3310 Carburized 58-62 HRC (single quench) is rated for continuous use to about 175°C (347 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- SAE J404 — Chemical Compositions of SAE Alloy Steels — SAE International (2021)
- ASTM A29/A29M — Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements — ASTM (2020)
- ASM Handbook Vol. 1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol. 4A — Steel Heat Treating Fundamentals and Processes (carburizing) — ASM International (2013)
- ASM Handbook Vol. 16 — Machining (machinability ratings) — ASM International (1989)
- GB/T 3077 — (12Cr2Ni4A ) — SAC / (2015)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.