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H11 1.2343 SKD62

Home>Products>Acciai di Strumenti di travagliu Caldu>H11 1.2343 SKD62

Acciai per utensili per u travagliu à caldu Mat.No. 1.2343, DIN X38CrMoV5-1, barre plate AISI H11

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quaternu di carichi

Designazione per Standards

Mat. Innò.DINENAISI
1.2343X38CrMoV5-1X27CrMoV51H11

Composizione chimica (in %)

CSiMnCrMoNiVWOtros
0.371.00.385.151.30-0.40--

Description:

H11 is one of  the Hot Work, Chromium type tool steels. It is relatively low in carbon content and has good toughness and deep hardens by air quench from heat treatment. Good combination of toughness, hardness and wear resistance in hot. Resistance to softening and to cracking.

Travaux:

H11 is often used for highly stressed structural parts such as aircraft landing gear. It resists softening at temperatures up to 537°C while retaining good ductility and toughness even at strength levels on the order of 275 ksi. Tools for hot forging of light metal. Pressure die casting tools. Dies, mandrels, punchers, knives, moulds. This grade can be water cooled. 

Proprietà fisiche (valori medii) à a temperatura ambiente

Modulus of elasticity [103 x N/mm2]: 215, 176 (at 500°C), 165 (at 600°C) 

Density [g/cm3]: 7.80, 7.64 (at 500°C), 7.60 (at 600°C)

Thermal conductivity [W/m.K]: 25, 28.5 (at 500°C), 29.3 (at 600°C) 

Electric resistivity [Ohm mm2/m]: 0.52, 0.86 (at 500°C), 0.96 (at 600°C)

Specific heat capacity[J/g.K]: 0.46, 0.55 (at 500°C), 0.59 (at 600°C)

Coefficient of Linear Thermal Expansion 10ˉ6 °C-1

20-100 ° C20-200 ° C20-300 ° C20-400 ° C20-500°C20-600°C20-700°C20-700°C
9.812.513.013.213.513.713.814.0

Ricottura dolce

Calore à 800-840 ° C, rinfriscà lentamente in furnace. Questu pruducerà una durezza Brinell massima di 229.

Stress Relieving

L'alleviazione di u stress per caccià e tensioni di machining deve esse realizatu scalendu à 650 ° C, mantenendu per una ora in calore, seguitu da rinfriscamentu d'aria. Questa operazione hè realizata per riduce a distorsione durante u trattamentu termale.

Endurecente

Harden from a temperature of 1000-1040°C followed by air, oil quenching or warm bath quenching 500-550°C. Hardness after quenching is 50-56 HRC.

Tempering

Temperature Tempering: Vede i dati sottu.

Température de Température (°C) versus dureté (HRC)

100 ° C200 ° C300 ° C400 ° C500 ° C550 ° C600 ° C650 ° C700 ° C
535252525452483830
18451790179017901910179015701200970


Forging

Temperature di furmazione à caldu: 1100-900 ° C. 

U travagliu à friddu

Cold working may readily be accomplished on H11 by conventional methods.

Macinabilità

Machinability is reasonably good, approximately 75% that of the W group water hardening low alloy tool steels.

A resistenza di corrosione 

This is a steel alloy and not corrosion resistant. It will rust unless protected.

Saldatura 

H11 is a readily weldable alloy by conventional methods.

Forms manufactured: Please see the  Dimensional Sales Program. 


Dimensione (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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