Database of Steel and Alloy (Marochnik)

en
HOME STANDARDS METALS SEARCH BULLETIN BOARD GRADING EDUCATION IN UKRAINE CONTACTS
 
(495)
(495)
Metals -> Tool steel -> High speed tool steel

Characteristics of the material R9M4K8   ( R9M4K8,   󗴾8 ).

Material : R9M4K8   ( R9M4K8,   󗴾8 )
Classification : High speed tool steel


Chemical composition in % of the material R9M4K8   ( R9M4K8,   󗴾8 ) .
C Si Mn Ni S P Cr Mo W V Co
1 - 1.1max   0.5max   0.5max   0.4max   0.03max   0.033 - 3.63.8 - 4.38.5 - 9.52.3 - 2.77.5 - 8.5


Temperature of critical points of the grade R9M4K8   ( R9M4K8,   󗴾8 ).
Ac1 = 800 ,      Ac3(Acm) = 840 ,       Ar3(Arcm) = 790 ,       Ar1 = 750


Mechanical properties under =20o of the material R9M4K8   ( R9M4K8,   󗴾8 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
      960 540 7 1080As-delivered state


    Brinell hardness of the material   R9M4K8   ( R9M4K8,   󗴾8 )   (annealing) ,       HB 10 -1= 285   MPa


Physical properties of the material R9M4K8   ( R9M4K8,   󗴾8 ) .
T E 10- 5 a 10 6 l r C R 10 9
Grade MPa 1/Grade Watt/(m稧rade) kg/m3 J/(kg稧rade) Ohm穖
20 2.29     8300    
100     25      
200     27      
300     28      
400     29      
500     30      
600     31      
700     32      
800            
900     32      
T E 10- 5 a 10 6 l r C R 10 9



Specification :
Mechanical properties :
s - Tensile strength , [MPa]
sT - Yield stress, [MPa]
d5 - Specific elongation at fracture , [ % ]
y - Reduction of area , [ % ]
KCU - Impact strength , [ kJ / m2]
HB - Brinell hardness , [MPa]

Physical properties :
T - Test temperature , [Grade]
E - Young modulus , [MPa]
a - Coefficient of linear expansion (range 20o - T ) , [1/Grade]
l - Termal (heat) condition coefficient , [Watt/(m稧rade)]
r - Density , [kg/m3]
C - Specific heat ( range 20o - T ), [J/(kg稧rade)]
R - Electrical resistance , [Ohm穖]

Database of steels and alloys (Marochnik) contains information about chemical composition and properties of 1500 steels and alloys (stainless steel, alloy steel, carbone steel, structural steel, tool steel, cast iron, aluminum alloy, titanium alloy, copper alloy, nickel alloy, magnesium alloy and others).
Helpfull for specialists in material technology, structural engineer, mechanical engineer, metallurgy and metal trader

Top

©   2003 - 2009   All rights reserved.       About program.
The entire risk as to use of the Database of Steel and Alloy (Marochnik) content is assumed by you the user

软纛痨圉 忡蜞 襦轵 锑痤黜桕 耱嚯 耧豚忸


秒噔磬 | 皖忸耱 | 锑痤黜桕 耱嚯彘 | 暑眚嚓螓 | 吾疣蝽 疋琰
© 2002 - 2009 填耨镥鲴蜞朦. 埋 镳噔 玎睇
 
-12345-