CONSTRUCTION STEEL-ROUND BARS : เหล็กเส้นกลม
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 0.280 - - 0.058 0.058

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

NOMINAL  SIZES  AND UNIT  WEIGHT
Designation Designation
Diameter (mm.)		 Unit  Weight
(Kg./m.)		 Cross Sectional
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

มอก.20-2543 
คลิกเพื่อโหลดข้อมูล   

 

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