Qee cov qauv siv los xam qhov hnyav ntawm cov ntaub ntawv hlau:
Theoretic UnitQhov hnyav ntawmCov pa roj carbonhlauPipe (kg) = 0.0246615 x phab ntsa thickness x (sab nraud txoj kab uas hla - phab ntsa thickness) x ntev
Round steel hnyav (kg) = 0.00617 x diam x diam x ntev
Square steel qhov hnyav (kg) = 0.00785 x sab dav x sab dav x ntev
Hexagonal steel hnyav (kg) = 0.0068 x opposite sab dav x opposite sab dav x ntev
Octagonal steel hnyav (kg) = 0.0065 x opposite sab dav x opposite sab dav x ntev
Rebar hnyav (kg) = 0.00617 x xam txoj kab uas hla x xam txoj kab uas hla x ntev
Lub kaum ntse ntse (kg) = 0.00785 x (sab dav + sab dav - sab tuab) x sab tuab x ntev
Pav ca steel luj (kg) = 0.00785 x thickness x sab dav x ntev
Hlau phaj hnyav (kg) = 7.85 x thickness x cheeb tsam
Round tooj dag bar hnyav (kg) = 0.00698 x diam x diam x ntev
Round tooj dag bar hnyav (kg) = 0.00668 x diam x diam x ntev
Round aluminium bar qhov hnyav (kg) = 0.0022 x inch x diam x ntev
Square tooj dag bar qhov hnyav (kg) = 0.0089 x sab dav x sab dav x ntev
Square tooj dag bar hnyav (kg) = 0.0085 x sab dav x sab dav x ntev
Square txhuas bar qhov hnyav (kg) = 0.0028 x sab dav x sab dav x ntev
Hexagonal ntshav tooj dag bar qhov hnyav (kg) = 0.0077 x opposite sab dav x opposite sab dav x ntev
Hexagonal tooj dag bar qhov hnyav (kg) = 0.00736 x sab dav x opposite sab dav x ntev
Hexagonal aluminium bar qhov hnyav (kg) = 0.00242 x opposite sab dav x opposite sab dav x ntev
Copper phaj luj (kg) = 0.0089 x thickness x dav x ntev
Brass phaj luj (kg) = 0.0085 x thickness x dav x ntev
Aluminium phaj qhov hnyav (kg) = 0.00171 x thickness x dav x ntev
Qhov hnyav ntawm puag ncig ntshav tooj dag raj (kg) = 0.028 x phab ntsa tuab x (txoj kab uas hla - phab ntsa tuab) x ntev
Round tooj dag raj hnyav (kg) = 0.0267 x phab ntsa thickness x (sab nraud txoj kab uas hla - phab ntsa thickness) x ntev
Round aluminium raj qhov hnyav (kg) = 0.00879 x phab ntsa thickness x (OD - phab ntsa thickness) x ntev
Nco tseg:Chav tsev ntawm qhov ntev nyob rau hauv cov mis yog ' meter ', chav tsev ntawm cheeb tsam yog square meter, thiab tus so ntawm cov units yog millimeters.Qhov hnyav saum toj no x chav tsev tus nqi ntawm cov khoom yog cov nqi khoom, ntxiv rau kev kho mob saum npoo + tus nqi ntawm tus txiv neej-teev ntawm txhua tus txheej txheem + ntim cov ntaub ntawv + nqi shipping + se + paj laum = quotation (FOB).
Lub ntiajteb txawj nqus tshwj xeeb ntawm cov khoom siv feem ntau
Hlau = 7.85 Aluminium = 2.7 Copper = 8.95 Stainless hlau = 7.93
Stainless hlau luj yooj yim xam mis
Stainless hlau tiaj tus luj ib square meter (kg) mis: 7.93 x thickness (mm) x dav (mm) x ntev (m)
304, 321 ibStainless hlau Pib ipTheoretic Unithnyav ib 'meter' (kg) mis: 0.02491 x phab ntsa thickness (mm) x (sab nraud txoj kab uas hla - phab ntsa thickness) (mm)
316 Ib., 310Stainless hlau Pib ipTheoretic Unithnyav ib ' meter ' (kg) mis: 0.02495 x phab ntsa thickness (mm) x (sab nraud txoj kab uas hla - phab ntsa thickness) (mm)
Stainless hlau round luj ib meter (kg) mis: txoj kab uas hla (mm) x txoj kab uas hla (mm) x (nickel stainless: 0.00623; chromium stainless: 0.00609)
Theoretical hnyav xam cov hlau
Kev ntsuas qhov hnyav ntawm cov hlau yog ntsuas hauv kilograms (kg).Nws cov qauv yooj yim yog:
W (hli, kg) = F (hli-sectional area mm²) x L (ntev m) x ρ (density g/cm³) x 1/1000
Ntau yam steel theoretical hnyav mis yog raws li nram no:
Round steel,Coil (kg / m)
W = 0.006165 xd
d = luas mm
Txoj kab uas hla 100mm round steel, nrhiav qhov hnyav ib m.Luas ib m = 0.006165 x 100² = 61.65 kg
Qhov hnyav (kg / m)
W = 0.00617 xd
d = luas diam mm
Nrhiav qhov nyhav ib m ntawm ib tug rebar nrog ib seem txoj kab uas hla ntawm 12 hli.Luas ib m = 0.00617 x 12² = 0.89 kg
Hlau square (kg / m)
W=0.00785 xa
a = sab dav mm
Nrhiav qhov hnyav ib m ntawm ib square steel nrog ib sab dav ntawm 20mm.Luas ib m = 0.00785 x 20² = 3.14 kg
Hlau (kg / m)
W = 0.00785 × b
b = sab dav mm
d = thickness mm
Rau lub tiaj tus hlau nrog ib sab dav ntawm 40mm thiab ib lub thickness ntawm 5mm, nrhiav qhov nyhav ib 'meter'.Luj ib m = 0.00785 × 40 × 5 = 1.57kg
Hexagonal hlau (kg / m)
W = 0.006798 × s
s = nrug ntawm opposite sab mm
Nrhiav qhov hnyav ib m ntawm hexagonal steel nrog qhov deb ntawm 50mm los ntawm sab nraud.Luj ib m = 0.006798 × 502 = 17kg
Octagonal hlau (kg / m)
W = 0.0065 × s
s = nrug rau sab mm
Nrhiav qhov hnyav ib m ntawm ib qho octagonal steel nrog qhov deb ntawm 80mm los ntawm sab nraud.Luj ib m = 0.0065 × 802 = 41.62kg
Lub kaum sab xis steel (kg / m)
W = 0.00785 × [d (2b-d) + 0.215 (R²-2r²)]
b = sab dav
d = ntug thickness
R = inner arc radius
r = radius of end arc
Nrhiav qhov nyhav ib m ntawm 20 mm x 4 mm equilateral angle.Los ntawm Metallurgical Catalog, R ntawm 4mm x 20mm vaj huam sib luag-ntug yog 3.5 thiab r yog 1.2, ces qhov hnyav ib m = 0.00785 x [4 x (2 x 20-4) + 0.215 x (3.52 - 2 x) 1.2²) = 1.15 kg
Lub kaum sab xis tsis sib xws (kg / m)
W = 0.00785 × [d(B+bd) + 0.215(R²-2r²)]
B = ntev sab dav
b = luv sab dav
d = Sab thickness
R = inner arc radius
r = kawg arc radius
Nrhiav qhov hnyav ib m ntawm 30 mm × 20 mm × 4 mm lub kaum sab xis.Los ntawm metallurgical catalog kom pom 30 × 20 × 4 lub kaum sab xis ntawm R yog 3.5, r yog 1.2, ces qhov hnyav ib m = 0.00785 × [4 × (30 + 20 - 4) + 0.215 × (3.52 - 2 × 1.2 2) )] = 1,46 kg
Channel steel (kg / m)
W = 0.00785 × [hd + 2t (bd) + 0.349 (R²-r²)]
h = qhov siab
b = luas
d = lub duav thickness
t = nruab nrab ceg tuab
R = inner arc radius
r = radius of end arc
Nrhiav qhov nyhav ib m ntawm ib channel steel ntawm 80 mm × 43 mm × 5 mm.Los ntawm metallurgical catalog cov channel muaj ntawm 8, ib R ntawm 8 thiab ib r ntawm 4. Nyhav ib m = 0.00785 × [80 × 5 + 2 × 8 × (43 - 5) + 0.349 × (82 - 4²)] 8.04kg = 0
I-beam (kg / m)
W = 0.00785 × [hd+2t(bd)+0.615(R²-r²)
h = qhov siab
b = luas
d = lub duav thickness
t = nruab nrab ceg tuab
r = puab arc radius
r = kawg arc radius
Nrhiav qhov hnyav ib m ntawm I-beam ntawm 250 mm × 118 mm × 10 mm.Los ntawm cov ntaub ntawv hlau phau ntawv I-beam muaj ntawm 13, ib R ntawm 10 thiab ib r ntawm 5. Nyhav ib m = 0.00785 x [250 x 10 + 2 x 13 x (118 - 10) + 0.615 x (10. 5²) = 42,03 kg
Hlau phaj (kg / m²)
W = 7,85 x d
d = thickness
Nrhiav qhov hnyav ib m² ntawm steel phaj thickness 4 hli.Luas = 7,85 x 4 = 31,4 kg
Cov yeeb nkab steel (xws li seamless thiab welded steel yeeb nkab) (kg / m)
W = 0.0246615× S (DS)
D = sab nraud
S = phab ntsa thickness
Nrhiav qhov hnyav ib m ntawm seamless steel yeeb nkab nrog rau sab nraud txoj kab uas hla ntawm 60 hli thiab phab ntsa thickness ntawm 4 hli.Luj ib m = 0.0246615 4 × (60-4) = 5.52kg
Post lub sij hawm: Oct-08-2023