Steel 49MnVS3 · heat-treated state · default condition
Steel 49MnVS3 As Forged
Properties of the As Forged condition, compared with the other 49MnVS3 tempers.
Standard commercial condition: forge and control-cool in air, V(C,N) precipitation gives Q&T-level strength with no further heat treatment.
What is 49MnVS3 As Forged?
49MnVS3 As Forged is 49MnVS3 heat treated to As Forged — standard commercial condition: forge and control-cool in air, V(C,N) precipitation gives Q&T-level strength with no further heat treatment. 49MnVS3 As Forged has a yield strength of 580 MPa (84.1 ksi) and a tensile strength of 900 MPa (131 ksi) — stronger than 75% of steel grades. Elongation at break is 12% and the elastic modulus is 210 GPa (30.5 Msi). 49MnVS3 As Forged 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).
Advantages
- Low embodied carbon — 1.9 kg CO₂/kg, better than 92% of steel grades
- Easy to machine — 62/100, better than 89% of steel grades
- High strength — 580 MPa (84.1 ksi), better than 75% of steel grades
Limitations
- Low fracture toughness — 50 MPa·√m (45.5 ksi·√in), worse than 87% of steel grades
- Limited ductility — 12%, worse than 84% of steel grades
- Difficult to weld — 25/100, worse than 77% of steel grades
49MnVS3 As Forged properties
Typical room-temperature values for 49MnVS3 As Forged — 9 properties are specific to this condition; the rest are grade-level values shared by every 49MnVS3 temper. Each bar shows where the value sits among the steel grades in FabDigit's library — further right is higher.
Physical3
49MnVS3 As Forged 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).
Mechanical16
49MnVS3 As Forged has a yield strength of 580 MPa (84.1 ksi) and a tensile strength of 900 MPa (131 ksi) — stronger than 75% of steel grades. Elongation at break is 12% and the elastic modulus is 210 GPa (30.5 Msi).
Thermal6
49MnVS3 As Forged is rated for continuous service to 350°C (662 °F). It conducts heat at 44 W/m·K (25.4 BTU/hr·ft·°F), better than 57% of steel grades. Thermal expansion is 12.5 µm/m·K (6.94 µin/in·°F).
Electrical3
49MnVS3 As Forged conducts electricity at 8.6 % IACS, better than 66% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (11/100), worse than 73% of steel grades.
Sustainability4
Producing a kilogram of 49MnVS3 As Forged takes about 25 MJ of energy and emits 1.9 kg of CO₂ — less than 82% of steel grades. Typical recycled content is 30%.
Manufacturability7
49MnVS3 As Forged's machinability is good (62/100, better than 89% of steel grades); weldability poor (25/100); formability poor (25/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Other 49MnVS3 tempers and conditions
49MnVS3 is also supplied in 7 other conditions. The full side-by-side table is on the 49MnVS3 overview.
- As ForgedDefaultStandard commercial condition: forge and control-cool in air, V(C,N) precipitation gives Q&T-level strength with no further heat treatment.580 MPa yield · 265 HB
- Q&T 28-32 HRCOptional route when higher toughness/strength combination than the as-forged condition is required (loses the cost benefit of the non-heat-treated grade).760 MPa yield · 30 HRC
Working with 49MnVS3 As Forged
Is 49MnVS3 easy to machine?
Sulphide inclusions give good chip breaking for a 900 MPa steel; carbide turning at 150–220 m/min in the as-forged state, expect short tool life on induction-hardened surfaces (grind or CBN).
Can 49MnVS3 be welded?
Not intended for welding — high carbon plus 0.06 % S makes it crack- and hot-crack-sensitive; if unavoidable, preheat 250–300 °C, low-hydrogen consumables and post-weld stress relief.
Can 49MnVS3 be formed, bent or molded?
Hot forge 1100–1250 °C with controlled cooling (air/fan) to develop V(C,N) strengthening; avoid cold forming other than light straightening/coining.
What surface finishes work on 49MnVS3?
No inherent corrosion resistance: phosphate + oil, black oxide, paint or Zn/Zn-Ni plating (bake to avoid hydrogen embrittlement); journals are ground and superfinished after induction hardening.
49MnVS3 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 | 0.44 – 0.52 | 0.49 |
| Si | 0.15 – 0.6 | 0.3 |
| Mn | 0.7 – 1 | 0.85 |
| P | ≤ 0.03 | — |
| Sintentional, for machinability | 0.05 – 0.08 | 0.06 |
| VV(C,N) precipitation strengthening | 0.08 – 0.15 | 0.11 |
| Ncontrolled for V(C,N) | 0.01 – 0.02 | 0.02 |
| Crresidual, max | ≤ 0.3 | — |
| Niresidual, max | ≤ 0.3 | — |
| Moresidual, max | ≤ 0.08 | — |
| Fe | balance | — |
49MnVS3 As Forged — frequently asked
What is 49MnVS3 As Forged used for?
49MnVS3 As Forged is typically used for bolts, industrial drive shafts and crankshafts. In short: microalloyed forging bar.
What is the yield strength of 49MnVS3 As Forged?
49MnVS3 As Forged has a typical yield strength of 580 MPa (84.1 ksi) and a tensile strength of 900 MPa (131 ksi) — stronger than 75% of steel grades. Strength varies by condition: see the 8 listed tempers.
Is 49MnVS3 As Forged easy to machine?
Reasonably — machinability is rated good (62/100, better than 89% of steel grades). Sulphide inclusions give good chip breaking for a 900 MPa steel; carbide turning at 150–220 m/min in the as-forged state, expect short tool life on induction-hardened surfaces (grind or CBN).
Can 49MnVS3 As Forged be welded?
Not readily — weldability is rated poor (25/100). Not intended for welding — high carbon plus 0.06 % S makes it crack- and hot-crack-sensitive; if unavoidable, preheat 250–300 °C, low-hydrogen consumables and post-weld stress relief.
What surface finishes work on 49MnVS3 As Forged?
No inherent corrosion resistance: phosphate + oil, black oxide, paint or Zn/Zn-Ni plating (bake to avoid hydrogen embrittlement); journals are ground and superfinished after induction hardening.
Can 49MnVS3 As Forged be formed, bent or molded?
Hot forge 1100–1250 °C with controlled cooling (air/fan) to develop V(C,N) strengthening; avoid cold forming other than light straightening/coining.
What is the maximum service temperature of 49MnVS3 As Forged?
49MnVS3 As Forged is rated for continuous use to about 350°C (662 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 49MnVS3 As Forged and 49MnVS3-AR?
As Forged is the default condition — standard commercial condition: forge and control-cool in air, V(C,N) precipitation gives Q&T-level strength with no further heat treatment. AR: pick for bar stock to be re-heated and forged, or for lightly loaded machined parts from bar. Yield strength is 580 MPa in As Forged versus 530 MPa in AR.
Can FabDigit make parts in 49MnVS3 As Forged?
Yes — 49MnVS3 As Forged is available for CNC machining and sheet metal with instant online pricing. Upload a STEP file to get a price and a DFM check.
Sources
- EN 10267 — Ferritic-pearlitic steels for precipitation hardening from hot-working temperatures — CEN (1998)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol.19 — Fatigue and Fracture — ASM International (1996)
- Microalloyed (non-heat-treated) forging steel bar datasheets — Saarstahl / Georgsmarienhütte / Ovako (2022)
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.