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Stainless Steel Density Calculation Methods

Stainless steel is an alloy, chemical composition and content diversity change, no one can accurately say that the density of one grade. Especially do machining to the budget, the most difficult to accurate, is stainless steel material is calculated, it is often difficult to calculate a precise results, this is mainly because the stainless steel density not very good grasp of size.

If we can know its components by calculating the proportion, also can obtain accurate results.

Chromium stainless steel, chromium nickel stainless steel and chrome manganese nitrogen stainless steel and so on, because the different components, their density is also not identical, even for the same kind of material, due to be the components of different.

The following is the comparison of several commonly used stainless steel density, data may not be completely accurate, only for reference.

Material 201, 202, 301, 302, 304, 304L, 305, 321

Density 7.93 7.93 7.93 7.93 7.93 7.93 7.93 7.93

If you just probably calculated, according to the general steel density is 7.85g/cm3, to carry out the calculation, the difference will not be great ( Such as 316 material price is very expensive, a rough budget entry would be very big ).

The following is the comparison of several commonly used stainless steel density meter, for reference purposes only. If you are only estimates, according to common steel density 7.85 / cm3 calculation.

Stainless steel materials, we can use the data to calculate the weight of relative theory, the calculating formula is

Weight ( kg ) = thickness (mm ) * width * length ( m ) ( m ) * density values ( g / cm )

Stainless steel welded pipe conveying fluid density

According to the national standard of content, according to China daily accumulation, reckoning the stainless steel approximate density ( g/cm3 ) respectively:

Material Grade 309S 310S 316 316L 347 405 410 420 409 430 434
Density g/cm3 7.98 7.98 7.98 7.98 7.98 7.75 7.75 7.75 7.70 7.70 7.70

Card number


( g / cm )

302, 304, 304L,

( 321 )


310S, 316,

316L, 347


409, 430, 434


405, 410, 420


Theoretical weight calculating formula is Calculation of Theoretic Weight

Steel products theoretical weight of Theoretic Weight

Weight ( kg ) = thickness (mm ) * width * length ( m ) ( m ) * density value

Weight ( kg ) = Thickness ( mm ) = Width ( m ) = Length ( m ) * Density ( g / cm )

The density of steel

Density ( g / cm3 ) Steel Grade

7.93 201,202,301,302,304,304L, 305,321

7.98 309S, 310S, 316316L, 347

7.75 405, 410, 420

7.70 409,430,434

Based on kg / cm3 unit.

Related References:
Density of Titanium Alloys Nickel Alloys Nickel Copper Alloys
Stainless Steel Density Calculation Methods
Calculate of wall thickness of pipe
Calculation of the theoretical weight of steel Stainless Steel Density Calculation Methods
Physical Properties of Stainless Steel
Physical Properties Table of Metals
Physical Properties of Stainless Steel
Physical Properties of Stainless Steel and Carbon Steel
Physical Properties of Gases at Standard Temperature Pressure
Physical Properties of HDG Hot-Dip Galvanized
Physical Properties of Zirconium
EN 10088-1 Elevated Temperature Physical Properties of Steel

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