Nickel Alloy Inconel 600-HW (Hot Worked / Hot Finished)
Heat-treated state
UNS N06600 · ASTM B168 · EN 2.4816, NiCr15Fe
Pick for heavy bar, forgings and hot-rolled plate where slightly higher strength than annealed is acceptable and full anneal is not required.
Values for the HW condition
Other Inconel 600 tempers and conditions
Inconel 600 is listed in 7 conditions; see the grade overview at Inconel 600.
Compare all 7 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
ANNDefault Annealed | Default stocked condition for plate, sheet, tube and bar: maximum ductility, best corrosion behaviour and full weldability. | 255 | 620 | 42 | 150 HB | — |
HWThis page Hot Worked / Hot Finished | Pick for heavy bar, forgings and hot-rolled plate where slightly higher strength than annealed is acceptable and full anneal is not required. | 330 | 660 | 38 | 170 HB | — |
As-welded deposit | Typical all-weld-metal properties for joints in alloy 600 fabrications; strength matches annealed base metal. | 380 | 620 | 35 | 165 HB | 1.6 % IACS |
Cold Drawn, Stress Relieved | Cold-drawn rod and tube with a low-temperature stress relief: tighter tolerance, better surface and moderately raised yield strength. | 480 | 720 | 25 | 200 HB | — |
Quarter hard | Light cold work for springy strip and stampings that still need appreciable bend ductility. | 520 | 750 | 22 | 18 HRC | 1.7 % IACS |
Half hard | Choose when higher yield strength is needed for springs, clips, bellows or thin-wall tubing with limited forming afterwards. | 700 | 880 | 12 | 25 HRC | — |
Full hard | Maximum strength and spring properties in strip and wire; almost no residual formability and cold work must not be exposed to high service temperature. | 930 | 1,070 | 4 | 34 HRC | — |
What is Inconel 600-HW?
Inconel 600-HW is Inconel 600 heat treated to HW — pick for heavy bar, forgings and hot-rolled plate where slightly higher strength than annealed is acceptable and full anneal is not required. Inconel 600-HW has a yield strength of 330 MPa (47.9 ksi) and a tensile strength of 660 MPa (95.7 ksi) — weaker than 67% of nickel alloy grades. Elongation at break is 38% and the elastic modulus is 214 GPa (31 Msi). Inconel 600-HW has a density of 8.47 g/cm³ (0.306 lb/in³), heavier than 63% of nickel alloy grades. It melts at 1,354°C (2,469 °F). ANN is the default condition FabDigit quotes; HW is available on request or by drawing note.
Advantages
- Easy to machine — 30/100, better than 90% of nickel alloy grades
- High service temperature — 1,100°C (2,012 °F), better than 88% of nickel alloy grades
- Tough — resists crack growth — 130 MPa·√m (118.3 ksi·√in), better than 85% of nickel alloy grades
- Conducts heat well — 14.9 W/m·K (8.61 BTU/hr·ft·°F), better than 80% of nickel alloy grades
- High electrical conductivity — 1.7 % IACS, better than 76% of nickel alloy grades
Inconel 600-HW properties
Typical room-temperature values for Inconel 600-HW; 13 are specific to this condition. Other listed values are Inconel 600 reference data and may not represent this condition. Bars are the position among nickel alloy grades.
Physical3
Inconel 600-HW has a density of 8.47 g/cm³ (0.306 lb/in³), heavier than 63% of nickel alloy grades. It melts at 1,354°C (2,469 °F).
Mechanical14
Inconel 600-HW has a yield strength of 330 MPa (47.9 ksi) and a tensile strength of 660 MPa (95.7 ksi) — weaker than 67% of nickel alloy grades. Elongation at break is 38% and the elastic modulus is 214 GPa (31 Msi).
Thermal6
Inconel 600-HW is rated for continuous service to 1,100°C (2,012 °F). It conducts heat at 14.9 W/m·K (8.61 BTU/hr·ft·°F), better than 80% of nickel alloy grades. Thermal expansion is 13.3 µm/m·K (7.39 µin/in·°F).
Electrical3
Inconel 600-HW conducts electricity at 1.7 % IACS, better than 76% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (74/100), worse than 66% of nickel alloy grades.
Sustainability4
Producing a kilogram of Inconel 600-HW takes about 150 MJ of energy and emits 11.5 kg of CO₂ — less than 68% of nickel alloy grades. Typical recycled content is 40%.
Manufacturability8
Inconel 600-HW's machinability is poor (30/100, better than 90% of nickel alloy grades); weldability very good (78/100); formability very good (70/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Inconel 600-HW
Is Inconel 600 easy to machine?
Gummy and work-hardening: use rigid setups, positive-rake sharp carbide, low speed (20–35 m/min) with heavy feed, generous flood coolant and never dwell in the cut.
Can Inconel 600 be welded?
Readily welded by GTAW/GMAW/SMAW with ERNiCr-3 or ENiCrFe-3, no pre- or post-weld heat treatment normally required; keep interpass heat input low and surfaces free of sulphur-bearing contaminants.
Can Inconel 600 be formed, bent or molded?
Excellent cold formability in the annealed state but high work-hardening rate demands ~50 % more press force than austenitic stainless; hot work 870–1230 °C and anneal near 980–1010 °C after heavy cold work.
What surface finishes work on Inconel 600?
Not anodizable — pickle in HNO₃/HF or grind/blast to remove hot-work oxide, then passivate or electropolish; takes a good mechanical polish and can be electroplated after nickel strike.
Inconel 600 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 |
|---|---|---|
| Niplus cobalt, per ASTM B168 | ≥ 72 | 76 |
| Cr | 14 – 17 | 15.5 |
| Fe | 6 – 10 | 8 |
| C | ≤ 0.15 | 0.05 |
| Mn | ≤ 1 | 0.25 |
| Si | ≤ 0.5 | 0.25 |
| Cu | ≤ 0.5 | 0.15 |
| S | ≤ 0.02 | 0 |
Inconel 600-HW — frequently asked
What is Inconel 600-HW used for?
Inconel 600-HW is typically used for furnace muffles, heat-treating fixtures, nuclear steam generator tubing and chemical processing. In short: general-purpose 1100 °C nickel alloy; resists chloride SCC; widest stock availability in family.
What is the yield strength of Inconel 600-HW?
Inconel 600-HW has a typical yield strength of 330 MPa (47.9 ksi) and a tensile strength of 660 MPa (95.7 ksi) — weaker than 67% of nickel alloy grades. Strength varies by condition: see the 7 listed tempers.
Is Inconel 600-HW easy to machine?
Not especially — machinability is rated poor (30/100, better than 90% of nickel alloy grades). Gummy and work-hardening: use rigid setups, positive-rake sharp carbide, low speed (20–35 m/min) with heavy feed, generous flood coolant and never dwell in the cut.
Can Inconel 600-HW be welded?
Yes — weldability is rated very good (78/100). Readily welded by GTAW/GMAW/SMAW with ERNiCr-3 or ENiCrFe-3, no pre- or post-weld heat treatment normally required; keep interpass heat input low and surfaces free of sulphur-bearing contaminants.
What surface finishes work on Inconel 600-HW?
Not anodizable — pickle in HNO₃/HF or grind/blast to remove hot-work oxide, then passivate or electropolish; takes a good mechanical polish and can be electroplated after nickel strike.
Can Inconel 600-HW be formed, bent or molded?
Excellent cold formability in the annealed state but high work-hardening rate demands ~50 % more press force than austenitic stainless; hot work 870–1230 °C and anneal near 980–1010 °C after heavy cold work.
What is the maximum service temperature of Inconel 600-HW?
Inconel 600-HW is rated for continuous use to about 1,100°C (2,012 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Inconel 600-ANN and Inconel 600-FH?
ANN is the default condition — default stocked condition for plate, sheet, tube and bar: maximum ductility, best corrosion behaviour and full weldability. FH: maximum strength and spring properties in strip and wire; almost no residual formability and cold work must not be exposed to high service temperature. Yield strength is 255 MPa in ANN versus 930 MPa in FH.
Sources
- ASTM B168 — Ni-Cr-Fe Alloy Plate, Sheet and Strip (UNS N06600) — ASTM International (2019)
- ASTM B166 — Ni-Cr-Fe Alloy Rod, Bar and Wire — ASTM International (2019)
- INCONEL alloy 600 technical bulletin — Special Metals Corporation (2008)
- ASM Handbook Vol.2 — Properties of Nonferrous Alloys — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials — ASM International (2005)
- GB/T 15007 / NS3102 (2017)
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.