ST 255x64 ST 10x43

United States

Dimensions

259 mm

depth

d_det

257 mm

depth (detailing value)

179 mm

flange width

b_f,det

178 mm

flange width (detailing value)

t_f

23.4 mm

flange thickness

t_f,det

23.8 mm

flange thickness (detailing value)

t_w

16.8 mm

web thickness

t_w,det

17.5 mm

web thickness (detailing value)

Secondary Dimensions

k_des

44.4 mm

design distance including flange thickness and web fillet

k_det

44.4 mm

detailing distance including flange thickness and web fillet

Properties

64 kg/m

weight

8,190 mm²

area

x_o

0 mm

shear center distance to centroid

e_o

89.7 mm

shear center distance to edge

x-x Axis

I_x

51.6ᴇ6 mm⁴

moment of inertia

S_x

282,000 mm³

elastic section modulus

Z_x

510,000 mm³

plastic section modulus

r_x

79.5 mm

radius of gyration

73.9 mm

distance from edge to centroidal axis

y_p

24.7 mm

vertical distance from edge to plastic neutral axis

y-y Axis

I_y

9.7ᴇ6 mm⁴

moment of inertia

S_y

108,000 mm³

elastic section modulus

Z_y

190,000 mm³

plastic section modulus

r_y

34.5 mm

radius of gyration

89.7 mm

distance from edge to centroidal axis

x_p

89.7 mm

horizontal distance from edge to plastic neutral axis

Torsion

1.37ᴇ6 mm⁴

torsional constant

C_w

2.46ᴇ9 mm⁶

warping constant

W_no

0 mm²

normalized warping function

r_o

107 mm

polar radius of gyration about the shear center

Additional Properties

t_w,det

9.52 mm

detailing value of web thickness divided by 2

b_f

2t_f

3.84

slenderness ratio

15.4

slenderness ratio

0.659

flexural constant

WG_i

102 mm

workable gage for inner flange holes

Allowable Strength Design

Beam Length

Steel Grade

Material

F_y

345 N/mm²

yield strength

F_u

448 N/mm²

ultimate tensile strength

Major Axis Bending

M_n

Ω_b

58.2 kN-m

available flexural strength

V_n

Ω_v

538 kN

available shear strength

W_max

244 kN

maximum uniform load

Open in beam calculator →

P_max

122 kN

maximum point load

Open in beam calculator →

Minor Axis Bending

M_n

Ω_b

58.2 kN-m

available flexural strength

V_n

Ω_v

519 kN

available shear strength

W_max

153 kN

maximum uniform load

Open in beam calculator →

P_max

76.4 kN

maximum point load

Open in beam calculator →

Axial Strength

P_n

1,380 kN

available tensile strength

P_n

Ω_c

911 kN

available compressive strength

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