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 (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.

Weight per m = 0.02466 × 4 × (60 -4 ) = 5.52kg

**Calculation formula of square and rectangular tube:**

Square and rectangular (rectangular) section carbon steel pipe calculation formula

Weight per meter unit: kg/m (kg/m)

Formula: kg/m = (Oc – 4Wt) * Wt * 0.00785

Where: Oc is the outer perimeter, Wt is the wall thickness;

Square Oc=4*a

Rectangle Oc=2a+2b a, b is the side length