Hr Black Sheets

HR Black Sheets










HR
Black Sheets


Mild
Steel in Drawing, Deep Drawing, Extra Deep Drawing Grades Medium
and High carbon, SAE 1020, If Steel, High Tensile Steel (
SPC-370-440)


Specifications
IS
513, BS 1449, JIS G3141, DIN1623, IS 7226 and equivalent. SPCC,
SPCD,SPCE


HR
Grade
IS
10748, IS - 1079


Strip
Width
100mm
to 580mm


Strip
Thickness
2.00mm
to 6.00mm


Coil
Weight
2-17
Kg/mm width


Coils
Diameter
Internal
500mm External 1700mm (max)


Cut
to Length Sheets
Length
350mm to 2800mm Width 40mm to 1250mm Thickness 0.40mm to 3.2mm


Surface
Finish
Bright
suitable for most purpose & recommended for electro plating
with light



HR Surface
Finish  Bright / Polished  Mat Finished

Most
of the applications are covered with this Surface roughness to
have trouble free deep drawing and lacquering operations.












Temper

Tensile Strength (kg/sq-mm) for guidance only

Hardness

Bend test Axis of Bend and rolling direction







HRB

HV

Parallel

Perpendicular



Full Hard
55 min
85 min
165 min

-

-



Half Hard
43 to 55
75 to 85
135 to 165

-

90 degree It


Quarter Hard
35 to 43
60 to 75
110 to 137

90 degree It

180 degree It


Skin Passed
29 to 38
53 to 70
117 max

180 degree flat

180 degree flat


Annealed

29 to 36
40 to 60
110 max

180 degree flat

180 degree flat