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D3 1.2080 SKD1

Id-dar>prodotti>Azzar tal-Għodda tax-Xogħol Kiesaħ>D3 1.2080 SKD1

D3 1.2080 SKD1 wire rod

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speċifikazzjonijiet
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.

APPLIKAZZJONIJIET: Forming rolls, drawing dies, forming, powder compaction tooling, and lamination dies.

KOMPOŻIZZJONI

C

Mn

Si

Cr

V

2.15

0.40

0.40

12.25

0.25

PROPRJETAJIET RELATTIVI

1492432113498899

Koeffiċjent ta 'Espansjoni Termali (58-59 HRC)

Temperatura︒F

in/in︒F×10-6

Temperatura︒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

PROPRJETAJIET FIŻIĊI

· Density: 0.284 lb/in3 (7870 kg/m3)

· Specific Gravity: 7.87

· Modulus of Elasticity: 30 x 106 psi (207GPa)

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

· Machinability: 45-50% of a 1% carbon steel

1492432147401951

STRUZZJONIJIET GĦAT - TRATTAMENT TAS - SĦANA

TISĦIĦ

TEMPERATURA KRITIKA :

Ac1: 1440 ° F (782 ℃)

Ac3: 1530 ° F (8320 ℃)

AR1: 1410 ° F (766 ℃)

AR3: 1370 ° F (743 ℃)

Sħana minn qabel: 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.

Ittemprar: Ittempra immedjatament wara t-tifi. Żomm f'temperatura għal siegħa kull pulzier (1 mm) ta 'ħxuna, sagħtejn minimu, imbagħad kessaħ bl-arja għat-temperatura ambjentali.

Għal reżistenza massima għall-ilbies, ittempra bejn 300-350 ° F (149-177 ° C) għal ebusija ta '62-63 HRC. Għall-aħjar bilanċ bejn reżistenza għall-ilbies u toughness, ittempra bejn 450-500 ° F (232-260 ° C). Dan se jipproduċi 58-60 HRC.

Biex timminimizza l-istress intern f'sezzjonijiet trasversali akbar minn 6 pulzieri (152.4 mm) u biex tittejjeb l-istabbiltà f'għodod li se jiġu EDM'd wara trattament bis-sħana, ħinijiet ta 'tixrib ta' 4 sa 6 sigħat fit-temperatura tat-tempra huma rakkomandati ħafna.

ANNESS

L-ittemprar għandu jsir wara xogħol sħun u qabel it-twebbis mill-ġdid.

Heat at a rate not exceeding 400°F per hour (222°C per hour) to 1600-1650°F (871-899°C), and hold at temperature for 1 hour per inch (25.4mm) of maximum thickness; 2 hours minimum. Then cool slowly with the furnace at a rate not exceeding 50°F per hour (28°C per hour) to 1000°F (538°C). Continue cooling to ambient temperature in the furnace or in air. The resultant hardness should be a maximum of 255 HBW.

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


PuntDimensjoni (mm)ProċessKondizzjoni tal-kunsinna
Bar tondDIA1.0 - 30Tpinġija kiesħa / tħin bla ċentruBright & Anneal
DIA20 - 80TqaxxirBright & Anneal
DIA 13-180Irrumblat bis-sħanaWiċċ iswed u Anneal
DIA 70 - 400Irrumblat bis-sħanaWiċċ iswed u Anneal
Bar ĊattT 3.0-20 XW 20-100Irrumblat bis-sħanaWiċċ iswed u Anneal
BlokkT 20-200 X 300-800Hot Rolled & Hot FalsifikatiWiċċ iswed / Magna & Anneal
Virga tal-wajerDIA 5.5 - 13Irrumblat bis-sħanaWiċċ iswed u Anneal
FoljiT1.0 - 2.5Irromblati kesħinWiċċ iswed u Anneal
T 2.5 - 8.0Irrumblat bis-sħanaWiċċ iswed u Anneal
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