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Technical Data

Reference tables for choosing steel

Classifications, weight tables, calculation formulas and chemical composition tables covering the different stages of steel production.

Weight calculatorFormulasDensitiesWeight tablesChemical composition
Weight Calculator Calculate the weight, add it to your list Weight per metre and per piece for round, square, flat, hexagon, tube and plate; add different products to a list, then download the total tonnage as a PDF or send it on WhatsApp. Open the calculator

Steel Bar Weight Formulas

With sizes entered in millimetres, these give the approximate weight in kilograms of one metre of bar.

Round (d):Weight per metre = d² × 0.616100 kg
Rectangle (a×b):Weight per metre = a × b × 0.785100 kg
Square (a):Weight per metre = a² × 0.785100 kg
Hexagon (s):Weight per metre = s² × 0.68100 kg
For tubes and plates too, use the calculator above

Density of Some Metals (relative to steel)

MaterialFactor
Aluminium bronze0.981
Copper1.131
Lead1.431
Aluminium0.341
Bronze1.111
Gunmetal (red brass)1.121
Grey cast iron0.921
Phosphor bronze1.121

Steel = 1. To find the weight of the same size in another material, multiply the steel weight from the formulas by the factor in the table.

Size & Weight Tables

Because they hold so many figures, the tables are shown as images of the originals. Click a table to enlarge it. The tables have Turkish headings: dış çap = outside diameter, et kalınlığı = wall thickness, genişlik = width, kalınlık = thickness, yuvarlak = round, kare = square, altıköşe = hexagon.

Chemical Composition Tables

Chemical composition ranges and typical uses of carbon, case-hardening, free-cutting and quenched and tempered steels. Click a heading to open the table.

Chemical Composition of Carbon Steels
GradeCSiMnPSNTypical uses
Ç 10100.08–0.130.15–0.350.30–0.600.0400.050–Bolts, nuts, structural bodies; machine parts that can be heat-treated
Ç 10200.18–0.230.15–0.350.30–0.600.0400.050–Machinery, bolts, nuts; can be heat-treated
Ç 10250.22–0.280.15–0.350.30–0.600.0400.050–Machinery, bolts, nuts; can be heat-treated
Ç 10300.28–0.340.15–0.350.60–0.900.0400.050–Machinery, axles, ship shafts, bolts, etc.
Ç 10350.32–0.380.15–0.350.60–0.900.0400.050–Bolts, load-bearing axles, worm shafts, gears; induction and flame hardenable
Ç 10400.37–0.440.15–0.350.60–0.900.0400.050–Transmission shafts, rails, gears, etc.; induction and flame hardenable
Ç 10450.43–0.500.15–0.300.60–0.900.0400.050–Gears, hooks, anchors, picks, shovels, etc.; induction and flame hardenable
Ç 10500.45–0.540.15–0.350.60–0.900.0400.050–Draw hooks, gears, picks, splined shafts
Ç 10600.55–0.650.15–0.350.60–0.900.0400.050–Shafts, axles, bolts
Ç 10700.65–0.750.15–0.350.60–0.900.0400.050–Coil and leaf springs, shears, simple cutting tools, punches, cutting dies
Ç 10900.85–0.980.15–0.350.60–0.900.0400.050–Bucket teeth, grader blades, high-strength machine parts, files, adzes, wood saws, punches
St 370.10–0.170.400.20–0.500.0400.0500.007Construction; hollow sections, bars and hot-rolled industrial sections
St 420.18–0.230.15–0.350.20–0.500.0400.0400.007Construction and industry; high-strength hot-drawn industrial sections
St 50-20.27–0.340.300.20–0.500.0500.0500.009Parts under compressive load, levers, shafts, non-precision gears, die and press bases
St 52-30.15–0.200.20–0.401.20–1.500.0400.0400.009Industrial and construction uses where strength is required
St 600.36–0.440.300.20–0.500.0500.0500.009Machine elements that need strength, gears, etc.
St 700.46–0.540.300.20–0.500.0500.0500.009Rivets, special bolts, keys and machine elements that need strength
C 220.17–0.240.400.30–0.600.0450.045–Machine elements, bolts and nuts; can be heat-treated
C 350.32–0.390.400.50–0.800.0450.045–Bolts, worm shafts, gears, load-bearing axles; heat-treatable, induction and flame hardenable
C 450.42–0.500.400.50–0.800.0450.045–Splined shafts, rails, load hooks, lever arms; heat-treatable, induction and flame hardenable
C 600.57–0.650.400.60–0.900.0450.045–Typical steel applications, with better hardenability and strength
CK 150.12–0.180.400.30–0.600.0350.035–Where strength is required; can be heat-treated
Ck 220.17–0.240.400.30–0.600.0350.030–Bolts, nuts, shafts, keys; can be case-hardened
Composition of Case-Hardening Steels
Mat. No.SymbolCSiMnP maxS maxCrMoNi
Quality steels
1.0301C 100,07…0,130,15…0,350,30…0,600,0450,045---
1.0401C 150,12…0,180,15…0,350,30…0,600,0450,045---
Special steels
1.1121Ck 100,07…0,130,15…0,350,30…0,600,0350,035---
1.1141Ck 150,12…0,180,15…0,350,30…0,600,0350,035---
1.701515 Cr 30,12…0,180,15…0,400,40…0,600,0350,0350.40…0,70--
1.713116 MnCr 50,14…0,190,15…0,401,00…1,300,0350,0350,80…1,10--
1.714720 MnCr 50,17…0,220,15…0,400,60…0,900,0350,0351,00…1,30--
1.732120 MoCr 40,17…0,220,15…0,400,60…0,900,0350,0350,30…0,500,40…0,50-
1.732524 MoCr 40,23…0,290,15…0,400,40…0,600,0350,0350,40…0,600,40…0,50-
1.591915 CrNi 60,12…0,170,15…0,400,40…0,600,0350,0351,40…1,70-1,40…1,70
1.592018 CrNi 80,15…0,200,15…0,400,40…0,600,0350,0351,80…2,10-1,80…2,10
1.658717 CrNiMo 60,14…0,190,15…0,400,40…0,600,0350,0351,50…1,800,25…0,351,40…1,70
1.652321 NiCrMo 20,18…0,230,20…0,350,70…0,900,0400,0400,40…0,600,15…0,250,40…0,70
Special steels (controlled sulphur content)
1.1140Cm 150,12…0,180,15…0,350,30…0,600,0350,020…0,035---
1.713916 MnCrS 50,14…0,190,15…0,401,00…1,300,0350,020…0,0350,80…1,10--
1.714920 MnCrS 50,17…0,220,15…0,401,10…1,400,0350,020…0,0351,00…1,30--
1.732320 MoCrS 40,17…0,220,15…0,400,60…0,900,0350,020…0,0350,30…0,500,40…0,50-
1.732625 MoCrS 40,23…0,290,15…0,400,60…0,900,0350,020…0,0350,40…0,600,40…0,50-
Composition of Free-Cutting Steels
No.DINC (max)SiMnPSPb²
1.07119 S 200.130.050.60-1.200.1000.180-0.250-
1.07159 SMn 280.140.050.90-1.300.1000.240-0.320-
1.07189 SMnPb 280.140.050.90-1.300.1000.240-0.3200.15-0.30
1.07369 SMN 360.150.051.00-1.500.1000.320-0.400–
1.07379 SMnPb 360.150.051.00-1.500.1000.320-0.4000.15-0.30
1.072110 S 200.07-0.130.10-0.400.50-0.900.0600.150-0.250-
1.072210SPb200.07-0.130.10-0.400.50-0.900.0600.150-0.2500.15-0.30
1.072635 S 200.32-0.390.10-0.400.50-0.900.0600.150-0.250-
1.072740 S 200.42-0.500.10-0.400.50-0.900.0600.150-0.250-
Grades and Composition of Quenched and Tempered Steels
Mat. No.SymbolCSiMnP maxS maxCrMoNiV
Quality steels
1.0402C 220,18…0,250,15…0,350,30…0,600,0450,045----
1.0501C 350,32…0,390,15…0,350,50…0,800,0450,045----
1.0503C 450,42…0,500,15…0,350,50…0,800,0450,045----
1.0535C 550,52…0,600,15…0,350,60…0,900,0450,045----
1.0601C 600,57…0,650,15…0,350,60…0,900,0450,045----
Special steels
1.1151Ck 220,18…0,250,15…0,350,30…0,600,0350,035----
1.1181Ck 350,32…0,390,15…0,350,50…0,800,0350,035----
1.1191Ck 450,42…0,500,15…0,350,50…0,800,0350,035----
1.1203Ck 550,52…0,600,15…0,350,60…0,900,0350,035----
1.1221Ck 600,57…0,650,15…0,350,60…0,900,0350,035----
1.503840 Mn 40,36…0,440,25…0,500,80…1,100,0350,035----
1.506528 Mn 60,25…0,320,15…0,401,30…1,650,0350,035----
1.700338 Cr 20,34…0,410,15…0,400,50…0,800,0350,0350,40…0,60---
1.700646 Cr 20,42…0,500,15…0,400,50…0,800,0350,0350,40…0,60---
1.703334 Cr 40,30…0,370,15…0,400,60…0,900,0350,0350,90…1,20---
1.703437 Cr 40,34…0,410,15…0,400,60…0,900,0350,0350,90…1,20---
1.703541 Cr 40,38…0,450,15…0,400,60…0,900,0350,0350,90…1,20---
1.721825 CrMo 40,22…0,290,15…0,400,50…0,800,0350,0350,90…1,200,15…0,30--
1.722034 CrMo 40,30…0,370,15…0,400,50…0,800,0350,0350,90…1,200,15…0,30--
1.722542 CrMo 40,38…0,450,15…0,400,50…0,800,0350,0350,90…1,200,15…0,30--
1.722850 CrMo 40,46…0,540,15…0,400,50…0,800,0350,0350,90…1,200,15…0,30--
1.736132 CrMo 1240,28…0,350,15…0,400,40…0,700,0350,0352,80…3,300,30…0,50(≤0,30)-
1.651136 CrNiMo 40,32…0,400,15…0,400,50…0,800,0350,0350,90…1,200,15…0,300,90…1,20-
1.658234 CrNiMo 60,30…0,380,15…0,400,40…0,700,0350,0351,40…1,700,15…0,301,40…1,70-
1.658030 CrNiMo 80,26…0,330,15…0,400,30…0,600,0350,0351,80…2,200,30…0,501,80…2,20-
1.815950 CrV 40,47…0,550,15…0,400,70…1,100,0350,0350,90…1,20--0,10…0,20
1.770730 CrMoV 90,26…0,340,15…0,400,40…0,700,0350,0352,30…2,700,15…0,25-0,10…0,20
Special steels (controlled sulphur content)
1.1180Cm 350,32…0,390,15…0,350,50…0,800,0350,020…0,035----
1.1201Cm 450,42…0,500,15…0,350,50…0,800,0350,020…0,035----
1.1209Cm 550,52…0,600,15…0,350,60…0,900,0350,020…0,035----
1.1223Cm 600,57…0,650,15…0,350,60…0,900,0350,020…0,035----
1.703734 CrS 40,30…0,370,15…0,400,60…0,900,0350,020…0,0350,90…1,20---
1.703837 CrS 40,34…0,410,15…0,400,60…0,900,0350,020…0,0350,90…1,20---
1.703941 CrS 40,38…0,450,15…0,400,50…0,800,0350,020…0,0350,90…1,20---
1.722634 CrMoS 40,30…0,370,15…0,400,50…0,800,0350,020…0,0350,90…1,200,15…0,30--
1.722742 CrMoS 40,38…0,450,15…0,400,50…0,800,0350,020…0,0350,90…1,200,15…0,30--

More resources

Weight calculatorCalculate the weight of bars, flats, tubes and plates instantly.Product catalogue (PDF)Products, sizes, grades and the tables on this page in one file (in Turkish).Technical articlesGuides to grade selection, heat treatment and casting types.

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