Specification
Used Rails as GOST R50-R65
R50 (51.67KG/METER) GOST 7173-55
R65 (64.72KG/METER) GOST 8161-75
Chemical composition of the used rails scrap.
MN:0.60 1.05; C:0.54 0.82; SI:0.18 - 0.12; S:0.04Max; P:0.035Max;
AS:0.01% Max of Max Share; and CR: Residual
Used rail scrap r-65 with following specification:-
1 c:0, 54-0, 82 2 si:0, 18-0, 40
3 mn:0, 60-1, 05 4 s:0.04 max
5 p:0, 035 max 6 as:0, 01 max of mass share
Specifications of used rail scrap ( r-45 to r-65):
Chemical specifications for scrap railway track metal:
-1. Caduim cd :0.0006%
2. Chromium cr :0.6205%
3. Copper cu :0.2507%
4. Cobalt co :0.0046%
5. Lead pb :0.0149%
6. Molybdenum mo :0.003%
7. Nickel ni :0.141%
8. Tin sn :0.001%
9. Silver ag :0.0005%
10. Zinc zn :0.349%
11. Iron fe :75.21%
12. Carbon :0.04 % (maximum) rejection at 0.06%
Impurities :23.33% (calculation) total 76.668%
The following traces of elements should be avoided & should not be there:.
Carbon :0.65 - 0.75% (in the railway track)
Manganese :0.65 - 0.80%
Sulphur :0.06% max.
Phosphorus :0.035%
Ash :0.01 max mass share
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HMS1&2 (80:20) and HMS1 (100%)
Steel scraps shall be considered free of alloys when the residual alloying elements do not exceed the following percentages: percent
Nickel 0.45
Chromium 0.20
Molybdenum 0.10
Manganese 1.65
The combined residuals other than manganese shall not exceed a total of 0.60 percent.
ISRI-CODES:
200 No. 1 heavy melting steel. Wrought iron and/or steel scrap 1/4 inch and over in thickness. Individual pieces not over 60 x 24 inches (charging box size) prepared in a manner to insure compact charging.
201 No. 1 heavy melting steel 3 feet x 18 inches. Wrought iron and/or steel scrap 1/4 inch and over in thickness. Individual pieces not over 36 inches x 18 inches (charging box size) prepared in a manner to insure compact charging.
202 No. 1 heavy melting steel 5 feet x 18 inches. Wrought iron and/or steel scrap 1/4 inch and over in thickness. Individual pieces not over 60 inches x 18 inches (charging box size) prepared in a manner to insure compact charging.
203 No. 2 heavy melting steel.* Wrought iron and steel scrap, black and galvanized, 1/8 inch and over in thickness, charging box size to include material not suitable as No. 1 heavy melting steel. Prepared in a manner to insure compact charging.
204 No. 2 heavy melting steel.* Wrought iron and steel scrap, black and galvanized, maximum size 36 x 18 inches. May include all automobile scrap properly prepared.
205 No. 2 heavy melting steel 3 feet x 18 inches. Wrought iron and steel scrap, black and galvanized, maximum size 36 x 18 inches. May include automobile scrap, properly prepared, however, to be free of sheet iron or thin gauged material.
206 No. 2 heavy melting steel 5 feet x 18 inches. Wrought iron and steel scrap, black and galvanized, maximum size 60 x 18 inches. May include automobile scrap, properly prepared, however, to be free of sheet iron or thin gauged material.
