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D3 1.2080 SKD1

Home>Products>Acciaiu di Strumenti di travagliu à Fretu>D3 1.2080 SKD1

D3 1.2080 SKD1 vergella

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quaternu di carichi
D3 Tool Steel is a high-carbon, high-chromium, oil-hardening tool steel that is characterized by a relatively high attainable hardness and numerous, large, chromium-rich alloy carbides in the microstructure. These carbides provide good resistance to wear from sliding contact with other metals and abrasive materials.

D3 exhibits excellent stability in heat treatment, holding size almost as well as the air-hardening, high-carbon, high-chromium die steels such as D2.

TIPI: Rotoli di formatura, fustelle di trafilatura, formatura, utensili per la compattazione di polveri e fustelle per laminazione.

COMPOSITION

C

Mn

Si

Cr

V

2.15

0.40

0.40

12.25

0.25

PROPRIETÀ RELATIVE

1492432113498899

Coefficient of Thermal Expansion (58-59 HRC)

Température ︒F

in/in︒F×10-6

Température ︒ C

mm/mm︒C×10-6

100-500

6.58

38-260

11.84

100-800

7.15

38-427

12.87

100-1000

7.32

38-538

13.81

100-1200

7.54

38-649

13.57

100-1500

7.72

38-816

13.90

PROPRIETÀ FISICHE

· Densità: 0.284 lb/in3 (7870 kg/m3)

· Gravità Specifica: 7.87

· Modulu d'elasticità: 30 x 106 psi (207GPa)

· Electrical Resistivity: 54.8 uOhm-cm at 70ºF (21ºC)

· Machinability: 45-50% di un 1% acciaio carboniu

1492432147401951

ISTRUZIONI DI TRATTAMENTO CALORE

DURRITURA

TEMPERATURA CRITICA :

Ac1: 1440 ° F (782 ℃)

Ac3: 1530 ° F (8320 ℃)

AR1: 1410 ° F (766 ℃)

AR3: 1370 ° F (743 ℃)

Priscaldamentu: To minimize distortion and stresses in large or complex tools use a double preheat. Heat at a rate not exceeding 400°F per hour (222°C per hour) to 1200-1250°F (649-677°C) equalize, then heat to 1400-1450°F (760-788°C). For normal tools, use only the first temperature range as a single preheating treatment.

Austenitizing (High Heat): Heat slowly from the preheat to 1700-1750°F (927-954°C)

Quenching: For oil, quench until black, about 900°F (482°C), then cool in still air to 150-125°F (66-51°C).

For pressurized gas, the furnace should have a minimum quench pressure of 4 bars. A quench rate of approximately 400°F (222°C) per minute to below 1000°F (538°C) is critical to obtain the desired properties.

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

For maximum wear resistance, temper between 300-350°F (149-177°C) for a hardness of 62-63 HRC. For the optimal balance between wear resistance and toughness, temper between 450-500°F (232-260°C). This will produce 58-60 HRC.

To minimize internal stresses in cross sections greater than 6 inches (152.4 mm) and to improve stability in tools that will be EDM'd after heat treatment, soaking times of 4 to 6 hours at the tempering temperature are strongly recommended.

RINCITURA

L'annullamentu deve esse realizatu dopu à u travagliu caldu è prima di rinfurzà.

Scaldate à un ritmu micca più di 400 ° F per ora (222 ° C per ora) à 1600-1650 ° F (871-899 ° C), è mantene a temperatura per 1 ora per inch (25.4 mm) di spessore massimu; 2 ore minimu. Allora rinfriscà lentamente cù u furnace à un ritmu micca più di 50 ° F per ora (28 ° C per ora) à 1000 ° F (538 ° C). Cuntinuà à rinfriscà à a temperatura ambiente in u furnace o in l'aria. A durezza resultanti deve esse un massimu di 255 HBW.

Cryogenic Treatment: Refrigeration treatments should typically be performed after the first temper, and must be followed by a second temper


ItemDimensioni (mm)prucessuCundizione di consegna
Ronda BarDIA 1.0 - 30Disegnu à fretu / rettifica senza centruBright & Anneal
DIA 20 - 80sbucciaturaBright & Anneal
DIA 13-180Rolled HotSuperficie nera & Anneal
DIA 70 - 400Rolled HotSuperficie nera & Anneal
Pianu BarT 3.0-20 XW 20-100Rolled HotSuperficie nera & Anneal
BloccuT 20-200 X 300-800Laminato a caldo e forgiato a caldoSuperficie nera / Machine & Anneal
Rod RodDIA 5.5 - 13Rolled HotSuperficie nera & Anneal
FullesT1.0 - 2.5Ghjuvatu fridduSuperficie nera & Anneal
T 2.5 - 8.0Rolled HotSuperficie nera & Anneal
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