Alloy VT6S

Designation

Name	The value
Designation GOST Cyrillic	ВТ6С
Designation GOST Latin	BT6C
Transliteration	VT6S
By chemical elements	ВTe6Pb

Description

Alloy VT6S is used: for the manufacture of semi-finished products (sheets, strips, foils, strips, plates, bars, rods, profiles, tubes, forgings and forged blanks) by the strain, and bars; cylinders operating under pressure.

Standards

Name	Code	Standards
Non-ferrous metals, including rare, and their alloys	В51	GOST 19807-91, OST 1 90000-70, OST 1 90013-81
Sheets and strips	В53	GOST 22178-76, OST 1 90218-76, OST 1 90024-94, TU 1-5-419-82, TU 1-5-424-77, TU 1-92-40-76
Bars	В55	GOST 26492-85, OST 1 90266-86, OST 1 90173-75, OST 1 90107-73, OST 1 90006-86, TU 1-9-672-78
Tubes of non-ferrous metals and alloys	В64	TU 1-5-421-78

Chemical composition

Standard	C	Si	Fe	N	Al	V	Ti	O	Zr	H
GOST 19807-91	≤0.1	≤0.15	≤0.25	≤0.04	5.3-6.5	3.5-4.5	Rest	≤0.15	≤0.3	≤0.015
OST 1 90013-81	≤0.1	≤0.1	≤0.25	≤0.05	5.3-6.5	3.5-4.5	Rest	≤0.15	≤0.3	≤0.015

Ti is the basis.
According to GOST 19807-91 and OST 1 90013-81 the total content of other impurities is ≤ 0.30%. The mass fraction of hydrogen is indicated for ingots. The mass fraction of chromium and manganese should not exceed 0.15% (in total). The mass fraction of copper and nickel should not be more than 0.10% (in total), including nickel not more than 0.08%.

Mechanical properties

Section, mm	σ_U, MPa	d₅, %	d	y, %	KCU, kJ/m²	HB, MPa
Rolled sheet after annealing (samples across the direction of rolling)
1-6	834-981	≥12	-	-	-	-
6-10.5	834-981	≥10	-	-	-	-
Rolled sheet. Quenching + artificial aging (samples across the direction of rolling)
1-10.5	≥1030	≥8	-	-	-	-
Plate on OST 1 90024-94 in the delivery condition. Samples heat-treated (transverse)
11-30	1030-1180	-	≥5	≥12	≥343	-
11-25	835-1030	-	≥7	≥16	≥392	-
25-60	835-1030	-	≥7	≥16	≥392	-
60-100	835-1030	-	≥7	≥16	≥392	-
Forgings weighing up to 200 kg after annealing
101-250	755-981	≥6	-	≥20	≥392	241-321
100	834-981	≥10	-	≥30	≥392	241-321
Bars hot rolled quenched and aged normal-quality according to GOST 26492-85 (longitudinal samples)
10-12	≥1030	≥4	-	≥14	-	-
12-100	≥1030	≥4	-	≥14	≥245	-
Bars hot rolled quenched and aged high-quality according to GOST 26492-85 (longitudinal samples)
10-12	≥1030	≥6	-	≥20	-	-
12-100	≥1030	≥6	-	≥20	≥294	-
Bars hot rolled autogenie ordinary quality GOST 26492-85 (longitudinal samples)
10-12	≥835	≥9	-	≥22	-	-
100-150	≥755	≥6	-	≥15	≥245	-
12-100	≥835	≥9	-	≥22	≥294	-
Bars hot rolled autogenie high-quality according to GOST 26492-85 (longitudinal samples)
10-12	835-980	≥10	-	≥30	-	-
100-150	755-980	≥7	-	≥22	≥392	-
12-60	835-980	≥10	-	≥30	≥392	-
60-100	835-980	≥10	-	≥25	≥392	-
Forged square bars and round after annealing
140-250	755-981	≥6	-	≥20	≥392	241-321
	834-981	≥8	-	≥25	≥392	241-321

Description mechanical marks

Name	Description
σ_U	Limit short-term strength
d₅	Elongation after rupture
d	Elongation after rupture
y	The relative narrowing
KCU	Toughness
HB	Brinell hardness number

Technological properties

Name	The value
Weldability	without restrictions