close up on a multi copper san mai billet from vegas forge, made in random pattern
multi copper san mai billet from vegas forge, made in random pattern
san mai core with carbon core and copper layers
close up on a multi copper san mai billet from vegas forge, made in random pattern
multi copper san mai billet from vegas forge, made in random pattern
san mai core with carbon core and copper layers

Random Multi Copper San Mai

Regular price $204.00
Regular price Sale price $204.00
Unavailable

Random Pattern Multi Copper San Mai Billet, a newer creation in the world of San Mai Damascus. At its core, this billet features 1095 steel, known for its excellent edge retention and toughness. Encasing each side of the core are 7 layers of Nickel, Copper and 1075 which add a unique aesthetic flair. These layers are all stacked and fused together, creating a billet that is not only visually stunning but also unparalleled in performance.

How to Heat Treat Carbon (0-1) Damascus

Coating: ATP-641, Turco, or similar high temperature anti-scale/decarburization coatings can be used in replace of foil to reduce scale or surface decarburization.

Preheating: Heat oven to 1300°F and place material in oven.

Austenitizing (High Heat): Heat slowly (400°F a/hr) from the preheat to 1475-1500°F (802-816C)

Soak for 30 minutes for the first inch (25.4 mm) of thickness, plus 15 minutes for each additional inch (25.4 mm).

Quenching: Oil quench to a temperature no lower than 150-125°F (66-51°C).

***Note: O-1 is somewhat prone to quench cracking, especially if there are significant changes in section thickness and sharp internal corners. The oil quenching should be performed so that the heat removal is as uniform as possible in all areas of the part being quenched. Be sure to remove the part from the oil before the temperature drops to ambient temperature.

Suggested quench oil: Parks AAA, McMaster 11-second, Houghton G–expected as quenched hardness may be lower if a slower quench oil or non-industrial quench medium is used. Parks 50 is not recommended. Heat oil at a temperature of 300 to 400°F (149-204°C) is recommended.

Tempering: Temper immediately after quenching. Do not allow the part to cool below 125°F (51°C). The typical tempering range is 350 – 400°F (177 -204°C).

Hold at temperature for 1 hour per inch (25.4 mm) of thickness, 2 hours minimum, then air cool to ambient temperature.

To minimize internal stresses in cross sections greater than 3 inches (76.2 mm) and to improve stability in parts that will be EDM’d after heat treatment, a soaking time of 4 to 6 hours at the tempering temperature is strongly recommended.

How to Heat Treat Carbon (1095) Damascus

Coating: ATP-641, Turco, or similar high temperature anti-scale/decarburization coatings can be used in replace of foil to reduce scale or surface decarburization.

Austenizing: Heat oven to Austenizing temperature (1475°F / 800°C)

When oven reaches Austenizing temperature, place material in oven and soak for 10 minutes. Soak time can vary from 5 to 15 minutes based on heat treating equipment and cross section but in most cases, a 10 minute soak time is ideal.

**Do not put blades in oven when cold, insert at or just below austenizing temperature–temperature variances is for difference in stock thicknesses and a window of margin for error.

Quenching: Suggested quench oil: Parks 50–expected as quenched hardness may be lower if a slower quench oil or non-industrial quench medium is used.

Tempering: Typical harnesses of 1095 carbon steel after tempering for 2 hours at different temperatures
Grade Temperature, °C (°F) Rockwell hardness, HRC
1095 high carbon steel, carbon content: 0.95% 205°C (400°F) 58 HRC
260°C (500°F) 57 HRC
315°C (600°F) 52 HRC
370°C (700°F) 47 HRC
425°C (800°F) 43 HRC
480°C (900°F) 42 HRC
540°C (1000°F) 41 HRC
595°C (1100°F) 40 HRC
650°C (1200°F) 33 HRC

How to Heat Treat Carbon (1075) Damascus

Coating: ATP-641, Turco, or similar high temperatureanti-scale/decarburization coatings can be used in replace of foil to reduce scale or surface decarburization.

Data is representative of controlled heat treating equipment (e.g. oven,salts, etc.) temperatures and industrial standard quenchant.

Suggested quench oil: Parks 50–expected as quenched hardness may be lower if a slower quench oil or non-industrial quench medium is used.

Austenizing: Austenizing temperature (1,450 to 1,480°F /801°C) Soak time varies 5 to 15 minutes based on heat treating equipment and cross section–soak times are reduced to minimum for people heat treating in a forge–forge heat treating without PID temperature control limits accurate means of maintaining temperature. If using calibrated, proper industrial equipment for heat treating, use the supplied extended soak times based on over all steel thickness.

**Do not put blades in oven when cold, insert at or just below austenizing temperature–temperature variances is for difference in stock thicknesses and a window of margin for error.

Tempering: Once blade is quenched and near ambient temperature, blades should be tempered accordingly, the times suggested are to ensure even, consistent temperature.Figures supplied are as representative of industrial standards.*If using a small toaster oven or household kitchen oven for tempering, using a blade holding rack made from kiln furniture, a roasting tray lined with fine sand, or similar large object will help retain thermal mass to reduce wide swinging temperatures as the device fluctuates trying to maintain temperature.

Note: Final hardness values vary based on initial as-quenched hardness and percentage of conversion to Martensite. Only reliable testing methods, e.g. calibrated Rockwell hardness tester, can provide actual hardness values–hardness calibrated files and chisels are relative testing methods and inaccurate for true hardness value reading.

Temper twice for 2hrs.

Temperature Hardness (2hour x2 guidline)
300°F / 149°C 65
350°F / 177°C 63-64
400°F / 204°C 60-61
450°F / 232°C 57-58
500°F / 260°C 55-56
550°F / 288°C 53-54
600°F / 316°C 52-53