PRODUCT
ROLL MARK / METAL TAG
SPECIFICATIONS
SPECIFICATIONS
STEEL MAKING FLOW AT JONAN STEEL
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KS
Deformed bar steel * Rolling mark
sd400_d10
sd400_d10
sd400_d13
sd400_d13
sd400_d16
sd400_d16
 
sd500_d10
sd500_d10
sd500_d13
sd500_d13
sd500_d16
sd500_d16
 
Tag indication for each type (Metal tag)
D16
D16
D16
D16

Symbol of grade

Standards Division Symbol of grade
KS D 3504 Deformed steel bars SD400
SD500

Chemical composition (%)

Symbol of grade C Si Mn P S N Ceq
SD400 0.045 max. 0.045 max.
SD500 0.040 max. 0.040 max.

Mechanical properties

Symbol of grade Yield point or proof stress
N/mm2
Tensile strength

N/mm2
Tensile test piece Elongation


%
Bendability
Bend angle Inside radius
SD400 400〜520 ≧YP×1.15 Equivalent to No.2 16min. 180° 2.5 × Nominal diameter
Equivalent to No.3 18min.
SD500 500〜650 ≧YP×1.08 Equivalent to No.2 12min. 90° 2.5 × Nominal diameter for diameter D25 mm or under
Equivalent to No.3 14min.

Dimension,mass and allowable limits of knots

Desig-
nation
Unit mass






kg/m
Nominal diameter

(d)



mm
Nominal section area

(s)


cm2
Nominal peripheral length

(I)


cm
Maximum value mm of average interval between knots

mm
Height of knot Maximum value of sum of clearance between knots

mm
Angle between knot and axial line
Minimum value

mm
Maximum value

mm
D10 0.560 9.53 0.7133 3.0 6.7 0.4 0.8 7.5 45°min.
D13 0.995 12.7 1.267 4.0 8.9 0.5 1.0 10.0 45°min.
D16 1.56 15.9 1.986 5.0 11.1 0.7 1.4 12.5 45°min.

Tolerances on length

Length Tolerance
7m or under +40mm
0
over 7m For each increase of 1m in length or its fraction,further 5mm shall be added to the tolerances on the plus side given above.The maximum value , however , shall be limited to 120mm.

Tolerances on mass of one piece.

Dimensions Tolerance
Designation over D10 up to and incl. D16 ±6%
Designation over D16 up to and incl. D29 ±5%

Tolerances on mass of one set.

Dimensions Tolerance
Designation D10 or over to and excl. D16 ±5%
Designation D16 or over to and excl. D29 ±4%

Packing (KS Rebar to the Korea)

Size
#
Dia.
(mm)

(m)

(kg/m)
Bundle
(Sub)

(pcs/bdl.)

(kg/bdl.)
D10 9.53 8 0.560 42 420 1,882
D13 12.7 8 0.995 30 240 1,910
D16 15.9 8 1.56 15 150 1,872
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