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Steel theoretical weight formula method

# Steel theoretical weight formula method

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Angle: weight per meter = 0.00785 * (edge ​​width + edge width - edge thickness) * edge thickness
Round: weight per meter = 0.00617 * diameter * diameter (round steel rebar and the same)
Steel: weight per meter = 0.00785 * thickness * side width
Tubing: weight per meter = 0.0246615 * thickness * (OD - Wall Thickness)
Plate: weight per meter = 7.85 * thickness
Brass: weight per meter = 0.02670 * thickness * (OD - Wall Thickness)
Copper: weight per meter = 0.02796 * thickness * (OD - Wall Thickness)
Aluminum checkered: weight per square meter = 2.96 * thickness
The proportion of non-ferrous metals: copper plate yellow copper 8.5 8.9 7.2 zinc plates stereotype 11.37
Non-ferrous metal sheet is calculated as follows: the proportion of weight per square meter = * thickness

Material Name

Theoretical weight w / kg.mu-1

Notes attached

Flat steel, steel plate, steel

W = 0.00785 × width × thickness

An accurate calculation formula angle, beam and channel steel is very complex, simple formula for calculating listed approximate.

2, f value of the coefficient: with a general model and was 3.34, with 2.65 b, c with 2.26.

3, e coefficients: and with a general model is 3.26, with a 2.44 b, with c of 2.24.

4, each of length units are mm.

Square steel

W = 0.00785 × side length × side length

Bar, wire rod, wire

W = 0.00617 × diameter × diameter

Hexagonal

W = 0.0068 × × distance to the edge-to-edge distance

Octagonal steel

W = 0.0065 × × distance to the edge-to-edge distance

Pipe

W = 0.02466 × wall thickness (wall - wall thickness)

Equilateral angle

W = 0.00785 × edge thickness (2 edge width - edge thickness)

Unequal angle

W = 0.00785 × edge thickness (length + width rectangular side edge width - edge thickness)

Beam

W = 0.00785 × waist thick [high + f (leg width - waist thick)]

Channel

W = 0.00785 × waist thick [high + e (leg width - waist thick)]

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Stainless steel theoretical weight calculation:

Stainless steel weight:
● Take chromium stainless steel 7.75 tons / M3
● chrome-nickel stainless steel takes 7.93 tons / M3
● Take 7.87 tons of iron / M3
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Stainless steel theoretical weight calculation formula
Steel products theoretical weight Weight (kg) = Thickness (mm) × width (mm) × length (mm) × density values
The density of steel
7.93 201,202,301,302,304,304L, 305,321
7.75 405,410,420
7.98 309S, 310S, 316S, 316L, 347
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Stainless steel per rod, wire, theoretical formula
★ diameter × diameter × 0.00609 = kg / m (applies to 410 420 420j2 430 431)
For example: ¢ 50 50 × 50 × 0.00609 = 15.23Kg / m
★ diameter × diameter × 0.00623 = kg / m (applies to 301 303 304 316 316L 321)
For example: ¢ 50 50 × 50 × 0.00623 = 15.575Kg / m
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Stainless steel profiles, theoretical formula
◆ hexagonal rods edge-to-edge × × 0.0069 = Kg / m
◆ square bar side edge width × width × 0.00793 = Kg / m
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Stainless steel tube, theoretical formula
○ (OD - thickness) × wall thickness × 0.02491 = Kg / m
For example ¢ 57 × 3.5 (57-3.5) × 3.5 × 0.02491 = 4.66Kg / m

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All kinds of steel pipe (material) weight generic formula

Weight of steel = 0.25 × π × (outer diameter squared - inside diameter squared) × L × Steel gravity where: π = 3.14 L = length of steel pipe gravity take 7.8 Therefore, the weight of steel = 0.25 × 3.14 × (outer diameter squared - inner diameter square) × L × 7.8 * If the size of the unit to take m (M), the result of the calculation of the weight in kilograms (Kg)

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The density of steel is: 7.85g / cm3
Theoretical weight of steel
Units of measurement calculated theoretical weight of steel in kilograms (kg). The basic formula is:
W (weight, kg) = F (basal area mm2) × L (length, m) × ρ (density, g / cm3) × 1/1000

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Various steel theoretical weight is calculated as follows:
Round rod (kg / m)
W = 0.006165 × d × d
d = Diameter (mm)
Diameter of 100 mm round, seeking weight per m. Weight per m = 0.006165 × 1002 = 61.65kg

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Rebar (kg / m)
W = 0.00617 × d × d
d = Diameter mm section
Sectional diameter of 12 mm rebar, seeking weight per m. Weight per m = 0.00617 × 12 × 12 = 0.89kg

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Square steel (kg / m)
W = 0.00785 × a × a
a = edge width mm
Edge width of 20 mm square steel, seeking weight per m. Weight per m = 0.00785 × 202 = 3.14kg
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Flat (kg / m)
W = 0.00785 × b × d
b = edge width mm
d = mm thick
Edge width 40 mm, 5mm thick flat steel, seeking weight per m. Weight per m = 0.00785 × 40 × 5 = 1.57kg

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Hexagonal (kg / m)
W = 0.006798 × s × s
s = distance to the edge mm
Edge distance of 50 mm hexagonal, seeking weight per m. Weight per m = 0.006798 × 502 = 17kg

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Octagonal steel (kg / m)
W = 0.0065 × s × s
s = distance to the edge mm
Distance of 80 mm on the side of the octagonal steel, seeking weight per m. Weight per m = 0.0065 × 802 = 41.62kg

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Equilateral angle (kg / m)
= 0.00785 × [d (2b - d) +0.215 (R2 - 2r 2)]
b = edge width
edge thickness d =
Within the arc radius R =
Seeking weight per m 20 mm × 4mm equilateral angle steel. Isolated from metallurgical products catalog 4mm × 20 mm equilateral angle R is 3.5, r 1.2, the weight per m = 0.00785 × [4 × (2 × 20 - 4) +0.215 × (3.52 - 2 × 1.2 2 )] = 1.15kg

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Equilateral angle (kg / m)
W = 0.00785 × [d (B + b - d) +0.215 (R2 - 2 r 2)]
B = width of the long side
b = width of the short side
edge thickness d =
Within the arc radius R =
Seeking 30 mm × 20mm × 4mm unequal angle of weight per m. Isolated from the metallurgical product catalog 30 × 20 × 4 unequal angle R is 3.5, r 1.2, the weight per m = 0.00785 × [4 × (30 + 20 - 4) +0.215 × (3.52 - 2 × 1.2 2)] = 1.46kg

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Channel (kg / m)
W = 0.00785 × [hd + 2t (b - d) +0.349 (R2 - r 2)]
h = high
b = leg
d = waist thick
t = average leg thick
Within the arc radius R =
Seeking 80 mm × 43mm × 5mm of each channel m weight. T find out the channel from metallurgical products catalog for 8, R is 8, r is 4, the weight per m = 0.00785 × [80 × 5 + 2 × 8 × (43 - 5) +0.349 × (82-4 2)] = 8.04kg

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Beam (kg / m)
W = 0.00785 × [hd + 2t (b - d) +0.615 (R2 - r 2)]
h = high
b = leg
d = waist thick
t = average leg thick
Within the arc radius R =
Seeking 250 mm × 118mm × 10mm of beam weight per m. Isolated from the beam t is the manual metal material 13, R is 10, r is 5, the weight per m = 0.00785 × [250 × 10 + 2 × 13 × (118 -10) +0.615 × (102 - 5 2)] = 42.03kg
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Steel (kg / m2)
W = 7.85 × d
d = thickness
Plate thickness of 4mm, seeking weight per m2. Weight per m2 = 7.85 × 4 = 31.4kg
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Steel (kg / m) (tube), including seamless steel tubes and welded steel pipes
W = 0.0246615 × S (D - S)
D = outside diameter
S = wall thickness
An outer diameter of 60 mm seamless steel pipe wall thickness of 4mm, seeking weight per m. Weight = 0.02466 × 4 × per m (60 -4) = 5.52kg

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Rectangular Pipe formulas :( square and rectangular (rectangular) cross-section steel tube is calculated)
Weight per meter Unit: kg / m (kg / m) formula: kg / m = (Oc - 4Wt) * Wt * 0.00785
Wherein: Oc is the outer perimeter, Wt is the wall thickness; square Oc = 4 * a rectangular Oc = 2a + 2b a, b is the side length