Calculation of Weight of Product ATLAS SPECIALTY METALS TECHNICAL SERVICES DEPT.

Material:

density: 7800 7900 8470 2700 7.9000sheet / plate Thickness (mm) Width (mm) Length (m)flat bar 1 kg:

Thickness (mm) Width (mm)coil kg/m:round Diameter (mm) Length (m)bar / wire kg:

A/F (mm) Length (m)square bar 1 kg:

A/F (mm) Length (m)hex bar kg:

A/F (mm) Length (m)oct bar 1 kg:

Thickness (mm) Leg 1 (mm) Leg 2 (mm) Length (m)angle bar 1 kg:

OD (mm) ID (mm) Length (m)hollow bar 1 kg:round OD (mm) WT (mm) Length (m)tube / pipe 1 kg:square / rect Side 1 (mm) Side 2 (mm) WT (mm) Length (m)tube / pipe 1 kg:Note: All results are approximate. Refer to second sheet for calculation fomulas. revised 6/03/2006 PJM

carbon & ferritic

stainless steels

austenitic stainless

steels

copper alloys (Note)

aluminium alloys (Note)

others (Note)

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insert dimensions for the required product shape in orange boxes, then read off the weight in the red boxes at right.Note - Densities shown in green boxes are typical. Add specific density under "others" for different materials.

ATLAS SPECIALTY METALSTECHNICAL SERVICES DEPT.

Formulas for Mass CalculationProduct Mass (kg/m)

Round bar and wire = 0.00000079 x dens x DHexagonal bar = 0.000000866 x dens x FOctagonal bar = 0.0000008284 x dens x FHollow round - tube and pipe = 0.00000314 x dens x (D - t) x tSquare / Rectangular tube or hollow section = 0.000001 x dens x 2 x (S1 + S2 - 2 x t) x tHollow bar = 0.0000007854 x dens x (D - d)Flat product = 0.000001 x dens x T x WAngle bar = 0.000001 x dens x (L1 + L2 - t) x t)D - Diameter or Outside Diameter (mm) d - Inside Diameter (mm) S1 and S2 - side dimensions of square or rectangular hollows (mm)t - Wall Thickness of tube or pipe (mm) T - flat product Thickness (mm) W - flat product Width (mm) F - Across Flats of a Hexagon or Octagon (mm)L1 & L2 - Angle bar Leg lengths (mm) t - Angle bar leg thickness (mm)

Notes1. These are approximate and actual weights may vary due to specific grade and dimension tolerances. 2. Austenitic stainless steels have slightly higher densities than carbon steels. Consult tables for exact calculations. 3. Dimensional tolerances are particularly wide for hot rolled products, such as plate, pipe.and black bar. 4. Theoretical densities are used for all calculations, and the result is a theoretical mass. This takes no account of dimensional tolerances.5. "Billing weights" are often used in commercial quotations - such as 8177 for austenitic stainless steel. This value accounts for a predominantly + tolerance for plate. It's justification for other products is less obvious.6. Hollow round includes pipe and tube (specified by OD and WT).7. Flat product includes plate, sheet, strip, coil and flat bar

Densities

Copper (alloy 385) 8470Peter Moore 31/01/2006

Carbon steel 7800Stainless steel (austenitic) 7900Aluminium alloys 2700

Calculation TableNotes