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H13 1.2344 SKD61

Home>Products>Acciai di Strumenti di travagliu Caldu>H13 1.2344 SKD61

Hot Work Tool Steels H13 1.2344 fogli

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quaternu di carichi

H13 steel is the most representative hot-working tool steel which was used widely. Such as molds for extrusion and metal die-casting molds. It also is called DIN 1.2344 and JIS SKD61 steel. H13 steel round bar sheet plate heat treatment requirements are very strict.The great annealing processing would improve the performance of steel.


COMPOSITION

CMnSi
Cr
Mo
V
C
0.40
0.401.005.25
1.35
1.00
0.40


Travaux:

1.2344 azzaru hà boni pruprietà miccanicu è hè usata largamente in l'industria, cum'è a furmazione di estrusioni di estrusioni, forging die cù una grande carica d'impattu, fustelle di precisione è ecc. In modu, a superficia di u moldu passa per nitrurazione o cianurazione, a vita di serviziu di u moldu cresce.


ISTRUZIONI DI TRATTAMENTU DI CALORE : INDURIZZAMENTU

TEMPERATURA CRITICA :
Ac1: 1544 ° F (840 ℃)Ac3: 1634 ° F (890 ℃)
AR1: 1475 ° F (802 ℃)AR3: 1418 ° F (826 ℃)


quaternu di carichi:

Annealing

Heat slowly to 1550°-1650°F, hold until entire mass is heated through, and cool slowly in the furnace (40F per hour) to about 1000°F, 

after which cooling rate may be increased. Suitable precautions must be taken to prevent excessive carburization or decarburization.

Stress Relieving

When desirable to relieve the strains of machining, heat slowly to 1050°-1250°F, allow to equalize, and then cool in still air (Strain Relieving).


Preheat Prima di Indurimentu

Scaldate un pocu prima di carica in u fornu di preriscaldamentu, chì deve esse operatu à 1400 °-1500 ° F.


Tempu: Air, pressurized gas, or warm oil. Section thicknesses up to and including 5 inches (127 mm) 

will typically fully through harden when cooled in still air from the austenitizing treatment. 

Sections greater than 5 inches (127 mm) in thickness will require accelerated cooling by using forced air, 

pressurized gas, or an interrupted oil quench to obtain maximum hardness, toughness and resistance to 

thermal fatigue cracking.

Per a spegnimentu di gas pressurizatu, un tassu minimu di spegnimentu di circa 50 ° F per minutu (28 ° C per minutu) à sottu à 1000 ° F (538 ° C) hè necessariu per ottene e proprietà ottimali in l'acciaio.

Per l'oliu, quench finu à u neru, circa 900 ° F (482 ° C), poi rinfriscà in aria tranquilla à 150-125 ° F (66-51 ° C).


AISI H13 Steel Mechanical Properties
JointMetricaImperial
Tensile strength, ultimate (@20°C/68°F, varies with heat treatment)1200 - 1590 MPa174000 - 231000 psi
Tensile strength, yield (@20°C/68°F, varies with heat treatment)1000 - 1380 MPa145000 - 200000 psi
Reduction of area (@20°C/68°F)50.00%50.00%
Modulus of elasticity (@20°C/68°F)215 GPa        31200 ksi
Ratio di Poisson0.27-0.300.27-0.30


ItemDimensioni (mm)prucessuCundizione di consegna
FullesT1.0 - 2.5Ghjuvatu fridduSuperficie nera & Anneal
T 2.5 - 8.0Rolled HotSuperficie nera & Anneal


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