How to calculate the density of iron plate? Or how much is the density of iron plate?

How to calculate the density of iron plate? Or how much is the density of iron plate?

Gray cast iron 6.7.4; white cast iron 7.7.72; malleable cast iron 7.7.43; cast steel 7.8; industrial pure iron 7.8759
It's usually 7.867.9

When calculating the weight of iron plate, there is an iron plate 1190 long (1 m 190) * 830 wide * 12 thick * 0.785. Is the density calculated in this way, and the result is 930*****
I don't know how much it is,
Is the position of the decimal point above me not good, or how to calculate it,

Length multiplied by width multiplied by thickness multiplied by density, which should be the same as the unit of length, width and height (kg or ton per cubic meter)

How to calculate the negative tolerance of steel? What is the meaning of the so-called 5% difference under the national standard,

It's not bad to have 5% difference under the national standard. These refer to composite indexes, such as thickness, carbon content, steel property, tensile property, high and low temperature plastic deformation, various welding indexes, and impurity content index of steel required by various countries

National standard free tolerance of mechanical parts

Limit deviation of linear dimension of free tolerance numerical tolerance grade dimension subsection 0.5 ~ 3 > 3 ~ 6 > 6 ~ 30 > 30 ~ 120 > 120 ~ 400 > 400 ~ 1000 > 1000 ~ 2000 > 2000 ~ 4000 f (precision grade) ± 0.05 ± 0.05 ± 0.1 ± 0.15 ± 0.2 ± 0.3 ± 0.5 - m (medium grade)

What are the contents of chromium and nickel in 201, 304 and 316 stainless steel plates?
Such as the title~

Nickel: about 0.6-1.3% of 201; 8% - 10% of 304; 10% - 14% of 316; chromium (GE): 17% - 19% of 201; 18% of 304; 18% of 316. Strictly speaking, 201 stainless steel pipe on the market is not up to standard, because the nickel content of 201 stainless steel pipe should be about 3-5%, but considering the cost problem, China's domestic market

What are the dimensions of stainless steel plate

General size: 1000 * 2000, 1219 * 2438, 1500 * 6000, 1800 * 6000
Ordinary scale: 1000 * scale, 1219 * scale, 1500 * scale, 1800 * scale
Arbitrary size (generally the price will be higher)
All the above units are mm

Area of 150 square meters of cast-in-place surface, with the national standard steel bar circle about how many tons? With what diameter?
It's a self built house in Guanzhong, Shaanxi Province. It's brick concrete. It's going to have two floors of cast-in-place surface, 150 square meters per floor, with ring beams (four corners and a total of 6 columns under the main beam). Is the cast-in-place surface cast at the same time or separately?

It is a masonry structure, and the six small columns are constructional columns. The brick wall should be built first, and the space of the horse toothed column should be left. Two 6mm anchor bars are built into the wall every 500 high. After the ring beam bottom elevation is reached, the constructional column reinforcement is tied up, and the structural column is poured by closing the formwork. Then the floor formwork, ring beam formwork, ring beam reinforcement, floor reinforcement, and pouring slab and beam concrete are supported, In the upper part of the surrounding slab and the upper part of the wall top slab with slabs on both sides, negative reinforcement with a diameter of 10 mm and a spacing of 120 ~ 150 shall be added, with a length of about 1 / 4 of the slab span. The reinforcement with a spacing of 6 mm and a spacing of 200 shall be used as the distribution reinforcement. The number of reinforcement required shall be calculated according to the above layout and the plane shape of the house

How large is an ordinary university? How many square meters

Different universities have different areas, For example, Northwest A & F University has an area of 45262 mu (5914 Mu campus), Nanjing Agricultural University has an area of 13500 mu (2716 Mu teaching area), Sun Yat sen University has an area of 9255 mu, while the Capital Medical University, which has an average area of 370.8 mu, is relatively small, It's smaller than the area

8mm thick, 37cm wide, 12m long steel plate, how much is it? How to calculate?

It depends on the composition of steel plate. Generally, the density of cold rolled steel plate is about 7.85g/cm3, and that of hot rolled steel plate is about 7.90g/cm3

Given; M2 + M-1 = 0, calculate m3 + 2M2 + 1997
M followed by several powers

m2+m-1=0
=>m^2+m=1
m3+2m2+1997
=(m^3+m^2)+m^2+1997
=m(m^2+m)+m^2+1997
=m+m^2+1997
=1+1997
=1998