Database of Steel and Alloy (Marochnik)

HOME

STANDARDS

METALS

SEARCH

BULLETIN BOARD

GRADING

EDUCATION IN UKRAINE

CONTACTS

(495)
(495)

Metals -> Tool steel -> Carbon tool steel

Characteristics of the material U12 ( U12, У12 ).

Material :	U12 ( U12, У12 )
Substitute:	У10, У11
Classification :	Carbon tool steel

Chemical composition in % of the material U12 ( U12, У12 ) .

C	Si	Mn	Ni	S	P	Cr	Cu
1.16 - 1.23	0.17 - 0.33	0.17 - 0.33	max 0.25	max 0.028	max 0.03	max 0.2	max 0.25

Temperature of critical points of the grade U12 ( U12, У12 ).

Ac₁ = 730 , Ac₃(Ac_m) = 820 , Ar₁ = 700 , Mn = 200

Mechanical properties under Т=20^oС of the material U12 ( U12, У12 ) .

Assortment	Dimension	Direct.	s_в	s_T	d₅	y	KCU	Heat treatment
-	mm	-	MPa	MPa	%	%	kJ / m²	-
Steel			590-690	325	28	50	270	Annealing
Band annealed	0.08 - 3		750		10

Brinell hardness of the material U12 ( U12, У12 ) (annealing) ,

HB 10^-1= 207 MPa

Physical properties of the material U12 ( U12, У12 ) .

T	E 10^{- 5}	a 10⁶	l	r	C	R 10⁹
Grade	MPa	1/Grade	Watt/(m·Grade)	kg/m³	J/(kg·Grade)	Ohm·m
20	2.09			7830
100	2.05	10.5	45	7809	469	252
200	2	11.8	43	7781	503	333
300	1.93	12.6	40	7749	519	430
400	1.85	13.4	37	7713	536	540
500	1.78	13.1	35	7675	553	665
600	1.66	14.8	32	7634	720	802
700		15.3	28	7592	611	964
800		15	24	7565	712	1152
900		16.3	25	7489	703	1196
1000		16.8			699
T	E 10^{- 5}	a 10⁶	l	r	C	R 10⁹

Technological properties of the material U12 ( U12, У12 ) .

Weldability:	is not used.
Flakes :	not predisposed
Temper brittleness:	not predisposed

Specification :

Mechanical properties :
s_в	- Tensile strength , [MPa]
s_T	- 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 20^o - T ) , [1/Grade]
l	- Termal (heat) condition coefficient , [Watt/(m·Grade)]
r	- Density , [kg/m³]
C	- Specific heat ( range 20^o - T ), [J/(kg·Grade)]
R	- Electrical resistance , [Ohm·m]

Weldability :
without limitations	- welding is done without heating and subsequent heat treeting
limited weldability	- welding is possible under heating up to 100-120 grade and subsequent heat treeting
hard weldability	- obtaining the quality welding needs the additional operations:heating up to 200-300 grade; the heat treeting ia annealing

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

Информация взята с сайта Марочник стали и сплавов

Главная | Новости | Марочник сталей | Контакты | Обратная связь

-12345-