Product specifications for steel rails categorized under ISRI codes:
ISRI Code (27) - Rail, Steel No.1:
Standard section T rails. Original weight: 50 pounds per yard or heavier. Length: 10 feet and over. Suitable for re-rolling into bars and shapes. Free from bent and twisted rails, frog, switch and guard rails, or rails with split heads and broken flanges. Continuous welded rail may be included, provided no weld is over 9 inches from the end of the piece of rail.
ISRI Code (28a) - Rail, Steel No.2 (Cropped Rail Ends):
Standard section. Original weight: 50 pounds per yard and over. Length: 18 inches and under.
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ISRI Code (28b) - Rail, Steel No.2 (Cropped Rail Ends):
Standard section.Original weight: 50 pounds per yard and over.Length: 2 feet and under.
ISRI Code (28c) - Rail, Steel No.2 (Cropped Rail Ends):
Standard section.Original weight: 50 pounds per yard and over.Length: 3 feet and under.
ISRI Code (29) - Rail, Steel No.3:
Standard section T, girder, and/or guard rails.To be free from frog and switch rails not cut apart and contain no manganese, casts, welds, or attachments of any kind except angle bars.Free from concrete, dirt, and foreign material of any kind.
These specifications detail the standards and requirements for the classification and condition of steel rails, addressing various lengths, original weights, and other specific characteristics. Adhering to these specifications ensures the quality and suitability of the materials for reprocessing and recycling.
Nominal Chemical Composition:
Carbon (C): 0.20% to 0.60%Manganese (Mn): 0.60% to 0.90%Silicon (Si): 0.15% to 0.35%Sulphur (S): 0.05% to MaximumPhosphorous (P): 0.05% to MaximumArsenic (Ar): 0.15% to Maximum
Nominal Specification for R50 (51.67 KG/M, GOST 7173-75):
Carbon (C): 0.40% to 0.58%Manganese (Mn): 0.75% to 0.88%Silicon (Si): 0.13% to 0.28%Sulphur (S): 0.045% to MaximumPhosphorous (P): 0.035% to MaximumArsenic (Ar): 0.13% to Maximum
Nominal Specification for R65 (64.72 KG/M, GOST 8165-75):
Carbon (C): 0.40% to 0.58%Manganese (Mn): 0.75% to 0.88%Silicon (Si): 0.13% to 0.28%Sulphur (S): 0.045% to MaximumPhosphorous (P): 0.035% to MaximumArsenic (Ar): 0.13% to Maximum
These specifications provide clear guidelines for the chemical composition and nominal specifications of R50 and R65 steel rails, ensuring consistency and quality in their properties. Adhering to these standards is essential for the proper classification and usage of these materials in various applications.
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