Melting point chart.
The temperature range over which each material melts: every aluminum, steel and stainless grade we stock and our MJF nylons, plus copper alloys, titanium and the nickel alloys machined most often. An alloy starts to melt at its solidus and is fully liquid at its liquidus, so design to the solidus.
| Material | Offered as | Solidus | Liquidus | °F | Creep ≈ 0.4 Tm |
|---|---|---|---|---|---|
| 1100-H14 | Sheet stock | 643 °C | 657 °C | 1,189–1,215 °F | 93 °C |
| 5052-H32 | Sheet stock | 607 °C | 649 °C | 1,125–1,200 °F | 79 °C |
| 6061-T6 | Sheet stock · CNC | 582 °C | 652 °C | 1,080–1,206 °F | 69 °C |
| MIC-6 cast plate | Sheet stock | ≈ 540 °C | ≈ 640 °C | 1,004–1,184 °F | 52 °C |
| 7075-T6 | Sheet stock · CNC | 477 °C | 635 °C | 891–1,175 °F | 27 °C |
| 3003-H14 | Reference | 643 °C | 654 °C | 1,189–1,209 °F | 93 °C |
| 2024-T3 | Reference | 502 °C | 638 °C | 936–1,180 °F | 37 °C |
| Magnesium AZ31B-H24 | Reference | 605 °C | 630 °C | 1,121–1,166 °F | 78 °C |
| C110 copper, half hard | Reference | 1,065 °C | 1,083 °C | 1,949–1,981 °F | 262 °C |
| C954 aluminum bronze | Reference | 1,027 °C | 1,038 °C | 1,881–1,900 °F | 247 °C |
| C260 cartridge brass, half hard | Reference | 915 °C | 955 °C | 1,679–1,751 °F | 202 °C |
| C360 free-cutting brass | Reference | 885 °C | 900 °C | 1,625–1,652 °F | 190 °C |
| C932 bearing bronze | Reference | 855 °C | 977 °C | 1,571–1,791 °F | 178 °C |
| A1008 cold rolled | Sheet stock | ≈ 1,495 °C | ≈ 1,530 °C | 2,723–2,786 °F | 434 °C |
| A1008 electro-galvanizedZinc 420 °C | Sheet stock | ≈ 1,495 °C | ≈ 1,530 °C | 2,723–2,786 °F | 434 °C |
| G90 galvanizedZinc 420 °C | Sheet stock | ≈ 1,495 °C | ≈ 1,530 °C | 2,723–2,786 °F | 434 °C |
| A36 HR pickled & oiled | Sheet stock | ≈ 1,470 °C | ≈ 1,515 °C | 2,678–2,759 °F | 424 °C |
| A36 mill finish | Sheet stock | ≈ 1,470 °C | ≈ 1,515 °C | 2,678–2,759 °F | 424 °C |
| HSLAS Grade 50 | Sheet stock | ≈ 1,470 °C | ≈ 1,515 °C | 2,678–2,759 °F | 424 °C |
| Corten (weathering) | Sheet stock | ≈ 1,470 °C | ≈ 1,515 °C | 2,678–2,759 °F | 424 °C |
| AR500 | Sheet stock | ≈ 1,430 °C | ≈ 1,500 °C | 2,606–2,732 °F | 408 °C |
| Spring steel 1075 / 1095 | Sheet stock | ≈ 1,350 °C | ≈ 1,455 °C | 2,462–2,651 °F | 376 °C |
| 1018 cold drawn | Reference | ≈ 1,480 °C | ≈ 1,515 °C | 2,696–2,759 °F | 428 °C |
| 4140 annealed | Reference | ≈ 1,415 °C | ≈ 1,495 °C | 2,579–2,723 °F | 402 °C |
| 304 | Sheet stock | 1,400 °C | 1,455 °C | 2,552–2,651 °F | 396 °C |
| 316 | Sheet stock | 1,375 °C | 1,400 °C | 2,507–2,552 °F | 386 °C |
| 430 | Reference | 1,425 °C | 1,510 °C | 2,597–2,750 °F | 406 °C |
| 17-4 PH, H900 | Reference | 1,404 °C | 1,440 °C | 2,559–2,624 °F | 398 °C |
| 303 | Reference | 1,400 °C | 1,420 °C | 2,552–2,588 °F | 396 °C |
| Inconel 600 | Reference | 1,354 °C | 1,413 °C | 2,469–2,575 °F | 378 °C |
| Hastelloy C-276 | Reference | 1,323 °C | 1,371 °C | 2,413–2,500 °F | 365 °C |
| Monel K-500 | Reference | 1,315 °C | 1,350 °C | 2,399–2,462 °F | 362 °C |
| Monel 400 | Reference | 1,300 °C | 1,350 °C | 2,372–2,462 °F | 356 °C |
| Inconel 625, annealed | Reference | 1,290 °C | 1,350 °C | 2,354–2,462 °F | 352 °C |
| Inconel 718 | Reference | 1,260 °C | 1,336 °C | 2,300–2,437 °F | 340 °C |
| CP titanium Grade 2 | Reference | 1,665 °C | 1,665 °C | 3,029 °F | 502 °C |
| Ti-6Al-4V (Grade 5) | Reference | 1,604 °C | 1,660 °C | 2,919–3,020 °F | 478 °C |
| PA-11 (HP MJF) | 3D printing | Tm 202 °C | — | 396 °F | — |
| PA-12 (HP MJF) | 3D printing | Tm 187 °C | — | 369 °F | — |
| PA-12 glass bead (HP MJF) | 3D printing | Tm 186 °C | — | 367 °F | — |
| PEEK (unfilled) | Reference | Tm 343 °C | — | 649 °F | — |
| PTFE (Teflon) | Reference | Tm 327 °C | — | 621 °F | — |
| Nylon 6/6 (dry) | Reference | Tm 262 °C | — | 504 °F | — |
| Acetal homopolymer (Delrin) | Reference | Tm 178 °C | — | 352 °F | — |
| Polycarbonate | Reference | no Tm | Tg 147 °C | Tg 297 °F | — |
| UHMW polyethylene | Reference | Tm 135 °C | — | 275 °F | — |
| ABS | Reference | no Tm | Tg 105 °C | Tg 221 °F | — |
| Acrylic (PMMA) | Reference | no Tm | Tg 105 °C | Tg 221 °F | — |
Design to the solidus.
Each bar starts at the solidus, where the alloy first begins to melt, and ends at the liquidus, where it is fully liquid. Between the two it is a slush of solid grains in liquid metal.
The solidus is the number that matters for a part: the grain boundaries start to melt there, so the part fails before the bar ends. 7075-T6 starts melting at 477 °C and is not fully liquid until 635 °C; CP titanium Grade 2 melts at a single 1,665 °C, the highest here.
The amber band on each metal starts at 0.4 of its absolute melting temperature (T/Tm in kelvin). Above that, a part under a steady load slowly creeps, and strength falls well before anything melts. It is a rule of thumb, not a rating — for a real service temperature, use the alloy's elevated-temperature data.
Zinc goes first
G90 and electro-galvanized steel melt with the steel, but their zinc coating melts at 420 °C and boils at 907 °C. Welding and laser cutting burn it off at the edge and give off zinc fume.
Tm, or only Tg
Semi-crystalline plastics such as nylon, acetal and PEEK have a melting point (Tm). Amorphous ones — ABS, polycarbonate, acrylic — never melt sharply; they soften from their glass transition (Tg).
Marked ≈
Mills rarely publish a melting range for plain carbon steel, so ours are estimated from the iron–carbon diagram for each grade's carbon content. MIC-6 is approximate too. Ask for certified data when it matters.
What each hot process reaches.
The offered materials that are already melting — or, for plastics, past Tg or Tm — at each temperature. Laser cutting and welding are not listed: they melt every material locally, by design.
| Process | Temperature | Offered materials melting at or below it |
|---|---|---|
| Powder-coat cure | 180–200 °C | PA-12 (HP MJF), PA-12 glass bead (HP MJF) |
| Zinc melts (galvanized coating) | 420 °C | PA-11 (HP MJF), PA-12 (HP MJF), PA-12 glass bead (HP MJF), A1008 electro-galvanized (zinc coating only), G90 galvanized (zinc coating only) |
| Soldering / brazing boundary | 450 °C | PA-11 (HP MJF), PA-12 (HP MJF), PA-12 glass bead (HP MJF), A1008 electro-galvanized (zinc coating only), G90 galvanized (zinc coating only) |
| 6061 solution heat treatment | ≈ 530 °C | 7075-T6, PA-11 (HP MJF), PA-12 (HP MJF), PA-12 glass bead (HP MJF), A1008 electro-galvanized (zinc coating only), G90 galvanized (zinc coating only) |
| Aluminum furnace brazing | ≈ 580–600 °C | 6061-T6, MIC-6 cast plate, 7075-T6, PA-11 (HP MJF), PA-12 (HP MJF), PA-12 glass bead (HP MJF), A1008 electro-galvanized (zinc coating only), G90 galvanized (zinc coating only) |
| Copper brazing of steel | ≈ 1,120 °C | 1100-H14, 5052-H32, 6061-T6, MIC-6 cast plate, 7075-T6, PA-11 (HP MJF), PA-12 (HP MJF), PA-12 glass bead (HP MJF), A1008 electro-galvanized (zinc coating only), G90 galvanized (zinc coating only) |
Heat-treated tempers lose strength far lower than this — see the melting point guide for service limits, and temper designations for why a T6 part should not run hot.
Where the numbers come from.
- ASM Handbook, Vol. 2: Properties and Selection — Nonferrous Alloys — Solidus and liquidus for aluminum, copper, titanium and nickel alloys.
- Aluminum Association, Aluminum Standards and Data — Melting ranges for wrought aluminum alloys.
- Special Metals Corporation alloy data sheets — Melting ranges for Inconel 600, 625, 718 and Monel 400, K-500.
- Haynes International, Hastelloy C-276 data sheet — Melting range for C-276.
- ASTM D3418 — Transition Temperatures of Polymers by DSC — How Tm and Tg of plastics are measured; HP publishes Tm for its MJF nylons.
Every value on this chart is checked against its published source in our technical report, Where metals and plastics start to melt — with the method, the carbon steel working and the full source list.
These are typical values for comparison. Melting ranges shift a few degrees with chemistry within a grade's specification.