Russian nomenclature to SI

[monirri]

Hi. I need to know which steels and bronzes correspond to this ones in Russian nomenclature. I take them out from a book on Internal Cobustion Engines from Jovaj.

Steels
40
45
50
50?
45?
40X
45X
40XH
40XMA
12XH3A
20XH3A
18X2H4B4
18X2H4MA
25X2H4BA
38XA
30XMA
40X?A
50X?A
45A
38XM
40X2HM
40X2H2MA
35X

bronzes

?p ??9-4
?pOHC4-4-2,5

any idea or source or catalog or book or hint?
Thanks
Carlos Molina

P.D I got the russian letters from

http://www.apronus.com/internet/ruskey.htm

 

[monirri]

ups!
the forum erased the russian letters

50? (it´s like a T with vertical line at the left Ucase ?)
45?

40X?A = 40X?A (it´s like an omega upper case ?)
50X?A = 50X?A

may you see it

 

[VeryPicky]

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Very Interesting.

Putting Human Factor Back in Engineering

 

[TVP]

The following are the 2 best sources for cross-referencing steel grades:

Stahlschl[ü]ssel

http://www.asminternational.org/Tem...=Ecommerce/ProductDisplay.cfm&ProductID=12214

Worldwide Guide to Equivalent Irons and Steels, 4th Edition

http://www.asminternational.org/Tem...=Ecommerce/ProductDisplay.cfm&ProductID=11476

The following covers non-ferrous metals:

Worldwide Guide to Equivalent Nonferrous Alloys, 4th Edition

http://www.asminternational.org/Tem...=Ecommerce/ProductDisplay.cfm&Productid=11845

All of them cross-reference Russian GOST standards to ASTM, SAE, DIN, etc. The ASM books can be purchased as a set for a slightly reduced price.