Alloy V95och

Designation

Name	The value
Designation GOST Cyrillic	В95оч
Designation GOST Latin	B95och
Transliteration	V95och
By chemical elements	В95оч

Description

Alloy V95och used: for the manufacture of rolled and extruded lengthy (30 m) semi-finished panels for the top wing (plates, sheets), stringers (bent and pressed sheet), beams, columns and other elements of the fuselage and wings of modern aircraft (TU-204, Il-96, be-200) and other highly loaded structures, working primarily in compression; profiles with cross-sectional area of 200 cm² and a diameter of circumcircle up to 350mm, designed for use in the aviation industry and special machine building industries; moulded panels of constant cross section with longitudinal fins in the aircraft industry, is made by a sweep of extruded finned tubes in the plane of the width of the fabric up to 2100 mm.

Note

High strength alloy system Al-Zn-Mg.

Standards

Name	Code	Standards
Non-ferrous metals, including rare, and their alloys	В51	GOST 4784-97, OST 1 90026-80
Processing of metals by pressure. Forgings	В03	OST 1 90073-85
Sheets and strips	В53	OST 1 90246-77, OST 1 90070-92, TU 1-5-072-78, TU 1-92-161-90
Bars	В55	OST 1 90395-91
Bars and shapes	В52	OST 1 92093-83, OST 1 92041-90, OST 1 90113-86, OST 1 90125-83

Chemical composition

Standard	Mn	Cr	Si	Ni	Fe	Cu	Al	Ti	Zn	Mg
OST 1 90026-80	0.2-0.6	0.1-0.25	≤0.1	≤0.1	≤0.15	1.4-2	Rest	≤0.05	5-6.5	1.8-2.8
GOST 4784-97	0.2-0.6	0.1-0.25	≤0.1	-	≤0.15	1.4-2	Rest	≤0.05	5-6.5	1.8-2.8

Al is the base.
According to GOST 4784-97 and OST 1 90026-80 the total content of other impurities is ≤ 0.10%. The content of each other impurity is ≤ 0.050%.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	HB, MPa
Sheet metal plated on OST 1 90246-77 heat treated in regime T2 (samples transverse to the direction of rolling)
0.5-1.9	380-461	450-530	≥8	-
1.9-4.5	380-461	460-540	≥8	-
4.5-6	400-481	480-560	≥8	-
6-10.5	390-471	470-550	≥8	-
Sheet metal plated on OST 1 90246-77 with heat treatment regime T3 (samples transverse to the direction of rolling)
0.5-1.9	345-420	430-500	≥8	-
1.9-4.5	355-430	440-510	≥8	-
4.5-10.5	375-450	450-520	≥8	-
Flats for OST 1 90246-77 heat treated in regime T2 (samples transverse to the direction of rolling)
1-3	420-500	490-570	≥8	-
3-6	420-501	500-580	≥8	-
6-10.5	420-501	490-570	≥8	-
Flats for OST 1 90246-77 with heat treatment regime T3 (samples transverse to the direction of rolling)
0.5-1	375-450	450-520	≥7	-
1-6	380-460	460-530	≥8	-
6-10.5	390-470	470-540	≥7	-
Panels are extruded with fins on OST 1 92041-90 on delivery
	420-510	490-570	≥8	-
Forgings for OST 1 90073-85. Mode T2: Quenching + artificial aging
≤75	400-480	460-540	≥4	≥120
100-125	370-450	440-520	≥3	≥120
75-100	390-470	460-540	≥3	≥120
≤75	410-490	480-570	6-7	≥120
100-125	390-470	450-540	≥6	≥120
75-100	400-480	470-560	≥6	≥120
≤75	410-490	470-550	4-5	≥120
75-100	410-490	460-540	≥4	≥120
≤75	430-520	490-580	6-7	≥120
75-100	420-510	480-570	6-7	≥120
Forgings for OST 1 90073-85. Mode T3: Quenching + artificial aging
≤75	370-450	440-520	4-5	≥110
100-125	340-430	410-490	3-4	-
125-150	340-430	400-480	≥3	-
75-100	360-450	430-510	3-4	-
≤75	380-470	450-540	≥7	≥110
100-125	360-450	420-510	≥7	-
125-150	360-450	410-500	≥7	-
75-100	370-460	440-530	≥7	-
≤75	370-450	440-520	≥5	≥110
75-100	360-450	430-510	3-4.5	-
≤75	380-470	450-540	7-8	≥110
75-100	370-460	440-530	7-8	-
Forgings section up to 150 mm OST 1 90073-85. Mode T1: Quenching + artificial aging (indicated by the direction of samples)
	-	≥440	≥3	≥125
	≥410	≥490	5-6	≥125
	-	≥450	≥4	≥125
	≥430	≥510	≥6	≥125
Extruded at OST 1 90113-86 normal strength with the cross-sectional area 200 cm2 and a diameter of the circumscribed circle of up to 350 mm. (sample transverse cross-sections show the direction of the sample). Quenching + artificial aging
	-	≥470	≥3	-
	≥450	≥490	≥4	-
Extruded at OST 1 90113-86 normal strength with the cross-sectional area 200 cm2 and a diameter of the circumscribed circle of up to 350 mm. (sample longitudinal cross-section shows the thickness of the shelf). Quenching + artificial aging by softening regime T2
≤75	450-530	510-590	≥7	-
75-125	420-530	490-590	≥7	-
Extruded at OST 1 90113-86 normal strength with the cross-sectional area 200 cm2 and a diameter of the circumscribed circle of up to 350 mm. (sample longitudinal cross-section shows the thickness of the shelf). Quenching + artificial aging by softening mode T3
≤5	390-460	460-530	≥7	-
40-75	400-470	470-540	≥8	-
5-40	420-490	480-550	≥8	-
75-125	390-460	460-530	≥7	-
Profile hire for OST 1 90125-83 heat treated in regime T2 (samples longitudinal to direction of rolling)
≤5	450-530	510-590	≥7	-
5-80	450-530	510-590	≥7	-
Profile hire for OST 1 90125-83 with heat treatment regime T3 (samples longitudinal to direction of rolling)
≤5	390-460	460-530	≥7	-
40-75	400-470	470-540	≥8	-
5-40	420-490	480-550	≥8	-
75-112	390-460	460-530	≥7	-
Rolled plates (plates) OST 1 90125-83 alloys and clad V95och В95очА heat treated in regime T2 (samples transverse to the direction of rolling)
11-50	420-500	490-560	≥7	-
50-60	380-460	470-540	≥6	-
60-85	365-440	460-530	≥6	-
Rolled plates (plates) OST 1 90125-83 alloys and clad V95och В95очА with heat treatment regime T3 (samples transverse to the direction of rolling)
11-50	400-480	470-540	≥7	-
50-60	365-440	450-520	≥6	-
60-85	345-420	440-510	≥6	-

Description mechanical marks

Name	Description
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d₅	Elongation after rupture
HB	Brinell hardness number

Physical characteristics

Temperature	Е, HPa	r, kg/m³
20	74	2850

A description of the physical symbols

Name	Description
Е	The normal elasticity modulus
r	Density
l	Coefficient of thermal conductivity
R	UD. the resistivity