Estrutura metálica
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TECHNICAL INFORMATIONtf
R
bf
d
tw
Y tf R d’
d
X
Structural Shapes Gerdau Açominas
tw
h
tf bf
GERDAU AÇOMINAS SHAPES
Hot-rolled W and HP Shapes from 6 to 24 inches (150 to 610 mm) In compliance with ASTM A6/A6M specifications Certified Guarantee Available for prompt delivery in ASTM A572 grade 50, in standard length of 12 m for all sizes or 6 m for sizes up to 12 inches (310 mm) Other cuts and steel specifications produced by special order
CHARACTERISTICS AND TOLERANCES
MECHANICAL PROPERTIES
ASTM A 572 Grade 50 Yield Point (MPa) Tensile Strength (MPa) Elongation, % (lo=200mm) 345 min. 450 min. 18 min. COR 500 370 min. 500 min. 18 min.
WEB OFF CENTER
Web off center (E)
E= bf1 - bf2 2 E
Tolerance d 5 mm ; E 3/16 in
bf1
bf2
bf
DIMENSIONS
Y
Depth (d)
Over Altura 4 mm 1/8 in Under 3 mm 1/8 in
Flange width (bf)
Theoretical Altura 6 mm 1/4 in Theoretical 5 mm 3/16 in Y bf d x tW R x
tf
CHARACTERISTICS AND TOLERANCES
FLANGES OUT OF SQUARE bf bf
(T + T´)
T´ T´
Height (h) d d d 310 mm d > 310 mm T d 12 in d > 12 in
Tolerance
T + T´ 6 mm T + T´ 8 mm T + T´ 1/4 in T + T´ 5/16 in
T
STRAIGHTNESS
Ef bf L
Straightness
Web (Ea) Flange (Ef)
Condition
___ bf < 150 mm bf > 150 mm
Tolerance
1,0 mm/m 2,0 mm/m 1,0 mm/m 1/8 in/(feet/10) 1/8 in/(feet/5) 1/8 in/(feet/10)
Web (Ea) d Ea Flange (Ef)
___ bf < 6 in bf > 6 in
ENDS OUT OF SQUARE
Depth (d)
q and q’
(max)
bf q´ q d
sizes with depth equal 1,6 % of depth to or less than 650 mm sizes with depth equal 1,6 % of depth to or less than 26 in
STRUCTURAL SHAPES
ASTM Weight d DESIGNATION mm x kg/m kg/m mm bf mm THICKNESS tw tf mm mm h mm d’ mm Area cm
2
Ix cm
4
AXIS X - X Wx rx cm
3
Zx cm
3
Iy cm
4
AXIS Y - Y Wy ry cm
3
SECTION Zy cm
3
rt cm
It cm
4
Cw bf /2tf d’/tw cm
6
u m /m
2
cm
cm
ASTM DESIGNATION in x lb/ft
W 150 x 13,0 W 150 x 13,5 W