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According to TIS 20-2543 in diameter grades SR24
Equivalent to : JIS G3112 (1987), AS/NZS 4671:2001 AS1302-1991, SS2: Part2 : 1999 NZS 3402 : 1989

CHEMICAL  COMPOSITION (%)
Grade Carbon Silicon Manganese Phosphorus Sulphur
SR24 0.28 - - 0.058 0.058

PHYSICAL  PROPERTIES
Grade yield strength
not less than 
Tensile strength
not less than 
Elongationnot less than (%) Cold  Bend Test
(kgf/mm2) (kgf/mm2) Bending Angle Diameter of Mandrel
SR24 24 39 21 180° 1.5 times
          of diameter

NOMINAL  SIZES  AND UNIT  WEIGHT
Designation Designation Unit  Weight Cross Sectional
Diameter (mm.) (Kg./m.) Area (cm2)
RB6 6 0.222 0.283
RB9 9 0.499 0.636
RB12 12 0.888 1.131
RB15 15 1.387 1.767
RB19 19 2.226 2.835

 

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