KS STANDARDSOverseas Information

KS STANDARDS

Product display

Our products, manufactured with solid technique, have received worldwide acclaim, and have established its position as a trusted brand.

Deformed bar/
Roll mark/
Polyester tag

SD400

SD400
SD400 D10
D10
SD400 D13
D13
SD400 D16
D16
SD400

SD500

SD500
SD500 D10
D10
SD500 D13
D13
SD500 D16
D16
SD500

Product standard list

We conduct inspections on our products to check many factors such as chemical composition, shape, dimension, mechanical property, etc. These are done under our strict quality control system, and enables us to manufacture high quality products.

Symbol of grade

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

Chemical composition (%)

Standards 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
D16 1.56 15.9 1.986 5.0 11.1 0.7 1.4 12.5

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 over D10 up to and incl. D16 ±5%
Designation over D16 up to and incl. D29 ±4%

Mass table

Packing (KS Rebar to the Korea)

Size
#
Dia.
(mm)
(m) (kg/m) Bundle
(Sub)
(pcs/bdl.) (kg/bdl.)
D10 9.53 8 0.56 42 420 1,882
D13 12.7 0.995 30 240 1,910
D16 15.9 1.56 15 150 1,872