Theoretical weight calculation formula of various steels

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Theoretical weight calculation formula of various steels (full version)

Angle steel: weight per meter=0.00785*(side width+side width-side thickness)*side thickness
Round steel: weight per meter=0.00617*diameter*diameter (rebar and round steel are the same)
Flat steel: weight per meter=0.00785* Thickness * side width
Pipe: weight per meter = 0.0246615 * wall thickness * (outer diameter – wall thickness)
plate: weight per meter = 7.85 * thickness
Brass pipe: weight per meter = 0.02670 * wall thickness * (outer diameter – wall thickness )
copper tube: weight per meter = 0.02796 * wall thickness * (outer diameter – wall thickness)
aluminum checker plate: weight per square meter = 2.96 * thickness
non-ferrous metal specific gravity: copper plate 8.9 brass plate 8.5 zinc plate 7.2 lead plate 11.37
The calculation formula of non-ferrous metal sheet is: weight per square meter = specific gravity * thickness

Theoretical weight calculation of stainless steel:

Specific gravity of stainless steel:
● 7.75 tons/M3 for
chromium stainless steel ● 7.93 tons/M3 for chromium-nickel stainless steel
● 7.87 tons/M3 for iron

Theoretical weight calculation formula of stainless steel plate Theoretical weight weight of steel product (
kg) = thickness (mm) × width (mm) × length (mm) × density
value ,347

Stainless steel bar, steel wire, theoretical calculation formula Diameter×diameter×0.00609=kg/m (applicable to 410 420 420j2 430 431)
For example: ￠50 50×50×0.00609=15.23Kg/meter Diameter ×diameter×0.00623=kg /m (applicable to 301 303 304 316 316L 321) For example: ￠50 50×50×0.00623=15.575Kg/m

Stainless steel profile, theoretical calculation formula hexagonal bar opposite side × opposite side × 0.0069=Kg/m Square bar side width × side width × 0.00793=Kg/
m

Stainless steel pipe, theoretical calculation formula
(outer diameter – wall thickness) × wall thickness × 0.02491 = Kg/meter
, such as ￠57 × 3.5 (57-3.5) × 3.5 × 0.02491 = 4.66Kg/meter

General formula for weight calculation of various steel pipes (materials)

The weight of the steel pipe = 0.25 × π × (outer diameter square – inner diameter square) × L × specific gravity of steel

Among them: π = 3.14 L = steel tube length and the specific gravity of steel is 7.8 So,

Weight of steel pipe = 0.25×3.14×(outer diameter squared-inner diameter squared)×L×7.8*

If the dimension unit is in meters (M), the calculated weight results in kilograms (Kg)

The density of steel is: 7.85g/cm3
Theoretical weight of
steel calculation The unit of measure for the calculation of the theoretical weight of steel is kilograms (kg).

The basic formula is:
W (weight, kg) = F (cross-sectional area mm2) × L (length, m) × ρ (density, g/cm3) × 1/1000

Round steel wire rod.jpg

Round steel wire rod (kg/m)
W = 0.006165 × d × d
d =
round steel with a diameter of mm and a diameter of 100 mm, find the weight per m. Weight per m = 0.006165 × 1002=61.65kg

Rebar (kg/m)
W= 0.00617 × d × d
d= Section diameter mm
For the rebar with a section diameter of 12 mm, find the weight per m. Weight per m=0.00617 × 12 2=0.89kg

Square steel (kg/m)
W= 0.00785 ×a ×a
a=
square steel with side width mm and side width 20 mm, find the weight per m. Weight per m = 0.00785 × 202=3.14kg

Flat steel (kg/m)
W= 0.00785 ×b ×d
b= side width mm
d= thickness mm
side width 40 mm, thickness 5mm flat steel, find the weight per m. Weight per m = 0.00785 × 40 × 5= 1.57kg

Hexagonal steel (kg/m)
W= 0.006798 ×s×s
s = Hexagonal
steel with a distance between the opposite sides mm and a distance between the opposite sides of 50 mm, find the weight per m. Weight per m = 0.006798 × 502=17kg

Octagonal steel (kg/m)
W= 0.0065 ×s ×s
s= The distance between the opposite sides in mm
and the distance between the opposite sides is 80 mm. Find the weight per m. Weight per m = 0.0065 × 802=41.62kg

Equilateral angle steel (kg/m)
W= 0.00785 ×[d (2b – d )+0.215 (R2 – 2r 2 )]
b= side width
d= side thickness
R= inner arc radius
r= end arc radius
20 mm × Weight per m for 4mm equilateral angle steel. It is found from the catalogue of metallurgical products that the R of 4mm × 20 mm equilateral angle steel is 3.5, and r is 1.2, then the weight per m = 0.00785 × [4 × (2 × 20 – 4) + 0.215 × (3.52 – 2 × 1.2 2 )]=1.15kg

Unequal angle steel (kg/m)
W= 0.00785 ×[d (B+b – d )+0.215 (R2 – 2 r 2 )]
B= long side width
b= short side width
d= side thickness
R= inner arc Radius
r= radius of end arc to
find the weight per m of unequal angle steel of 30 mm × 20 mm × 4 mm. It is found from the catalogue of metallurgical products that the R of 30 × 20 × 4 unequal angle steel is 3.5, and r is 1.2, then the weight per m = 0.00785 × [4 × (30+20 – 4) + 0.215 × (3.52 – 2 × 1.2 2 )]=1.46kg

Channel steel (kg/m)
W=0.00785 ×[hd+2t (b – d )+0.349 (R2 – r 2 )]
h= height
b= leg length
d= waist thickness
t= average leg thickness
R= inner arc radius
r= The radius of the end arc to
find the weight per m of the channel steel of 80 mm × 43 mm × 5 mm.

It is found from the catalogue of metallurgical products that the channel steel t is 8, R is 8, and r is 4, then the weight per m = 0.00785 × [80 × 5+2 × 8 × (43 – 5) + 0.349 × (82 – 4 2)]=8.04kg

I-beam (kg/m)
W= 0.00785 ×[hd+2t (b – d )+0.615 (R2 – r 2 )]
h= height
b= leg length
d= waist thickness
t= average leg thickness
R= inner arc Radius
r= radius of end arc
to find I-beam of 250 mm × 118 mm × 10 mm

Weight per m. The I-beam t is 13, R is 10, r is 5, and

Then the weight per m = 0.00785 ×[250 ×10+2 ×13 ×(118 –10 )+0.615 ×(102 –5 2 )]=42.03kg

Steel plate (kg/m2)
W = 7.85 × d
d =
steel plate with a thickness of 4mm, find the weight per m2.

Weight per m2=7.85 × 4=31.4kg

Steel pipe (kg/m)

Round pipes include seamless steel pipes and welded steel pipes
. W= 0.0246615 × S (D – S )
D= outer diameter
S= wall thickness
of 60 mm and a seamless steel pipe with an outer diameter of 60 mm and a wall thickness of 4 mm, find the weight per m.