TIS/JIS STANDARDS - TIS1227 : 1996 / JIS G3192 : 1990
(Construction Steel-Roound Bars)

(Grade SM400, SM490, SM 520, SS400, SS490 or SS540)

CHEMICAL  COMPOSITION (%)
Grade Carbon Silicon Manganese Phosphorus Sulphur
Max (%) Max (%) Max (%) Max (%) Max (%)
SR24 0.280 - - 0.058 0.058

 

MECHANICAL  PROPERTIES
Grade yield strength Tensile strength Elongation
  Min (MPa) Min (MPa) Min (%)
SR24 385 235 21

 

NOMINAL  SIZES  AND UNIT  WEIGHT
Designation Designation Unit  Weight Cross Sectional
  Diameter (mm.) (Kg./m.) mm2
RB 6 6 0.222 28.3
RB 8 8 0.395 50.3
RB 9 9 0.499 63.6
RB 12 12 0.616 78.5
RB 15 15 0.888 113.1
RB 19 19 1.387 176.7
RB 22 22 2.226 283.5
RB 25 25 2.984 380.1