GOST 26468-85
GOST 26468−85 deformable Alloys based on niobium. Brand
GOST 26468−85
Group W51
INTERSTATE STANDARD
WROUGHT ALLOYS BASED ON NIOBIUM
Brand
Wrought columbium alloys. Grades
GST 17 6352
Date of introduction 1986−01−01
Resolution of the USSR State Committee for standards from
REPRINTING.
1. This standard establishes the brand deformable alloys based on niobium, manufactured in bars intended for the manufacture of semi-finished products and other purposes.
2. The chemical composition of the grades of wrought alloys based on niobium in the alloy components and control of impurities shall be as given in the table.
Grade bullion |
OS- Nova |
Mass fraction of alloying component, % |
Mass fraction of impurities, %, not more | |||||||||||||
WOL- FRAM |
mo- lib- den |
Circo- tions |
carbon rod |
nitrogen |
KIS- lo- rod |
HS- Le rod |
WOL- FRAM |
mo- lib- den |
tan- tal |
same- Le zo |
BAP MNI |
ti- tan |
Alu- mi- tions |
water rod | ||
NBC | Nio- Biy |
- | - | 0,8- 1,3 |
- | 0,015 | 0,02 | 0,02 |
0,06 | 0,06 | 0,4 | 0,01 | 0,01 | 0,01 | 0,01 | 0,001 |
Nbcu | Nio- Biy |
- | - | 1,0- 1,4 |
0,08- 0,12 |
0,015 | 0,02 | - |
0,06 | 0,06 | 0,4 | 0,01 | 0,01 | 0,01 | 0,01 | 0,001 |
Nb5v2mc | Nio- Biy |
4,5- 5,5 |
1,7- 2,3 |
0,7- 1,15 |
- | 0,01 | 0,02 | 0,02 |
- | - | 0,4 | 0,01 | 0,01 | 0,01 | 0,01 | 0,001 |
Nb10v2mc | Nio- Biy |
9.0 to 11,0 |
1,7- 2,3 |
0,7- 1,15 |
- | 0,015 | 0,02 | 0,02 | - | - | 0,4 | 0,01 | 0,01 | 0,01 | 0,01 | 0,001 |
Nb10v5mcu |
Nio- Biy |
A 9.5 11,5 |
4,5- 5,7 |
1,0- 1,5 |
0,09- 0,15 |
0,015 | 0,02 | - | - | - | 0,4 | 0,01 | 0,01 | 0,01 | 0,01 | 0,002 |
Notes:
1. The designation marks the letters mean: NB — niobium, C — zirconium, carbon, — tungsten, M — molybdenum; the numbers before the letter — mass fraction of the components; the lack of a numeric indicator before the letter — mass fraction of the component is less than or equal to one.
2. Mass fraction of nitrogen, oxygen, hydrogen and carbon in the semis of niobium alloys is established in the normative-technical documentation for specific product.
3. OKP codes are given in Appendix 1.
4. Compliance designations of new and previously existing brands of wrought alloys of niobium are given in Appendix 2.
ANNEX 1
Reference
OKP codes
OKP code |
Grade |
17 6352 4200 05 | Nb5v2mc |
17 6352 4300 02 | Nb10v5mcu |
17 6352 4500 07 | NBC |
17 6352 4700 01 | Nbcu |
17 6352 4800 09 |
Nb10v2mc |
ANNEX 2 (informative). Compliance designations of new brands and the previously existing
ANNEX 2
Reference
Marking stamps | |
according to GOST 26468−85 |
previously existing normative-technical documentation |
NBC |
NTS-1, NTS-2 (SB-1), SC-2−1 (SB-1−1) |
Nbcu |
NTSU (SB), niobium-zirconium-carbon |
Nb5v2mc |
5В2МЦ-1 (5ВМЦ-1), 5В2МЦ-2 (5ВМЦ-2) |
Nb10v2mc |
10ВМЦ |
Nb10v5mcu |
10В5МЦУ-1 (LN-1) |