Reinforcement Properties

A responsive reference page organized from the Mild Reinforcement worksheet. Numeric values retain the decimal precision displayed in the source workbook.

General Properties

Modulus of elasticity
200,000 MPa
Density
7,850 kg/m³
Thermal coefficient
11.7 x 10-6 /°C

CSA Carbon Steel Bars

CSA G30.18:21

Property400R400W500W600W
Min. Yield Strength (MPa)400400500600
Min. Ultimate Strength (MPa)540540625700

ASTM Carbon Steel Bars

ASTM A615

PropertyGrade 40Grade 60Grade 80Grade 100
Min. Yield Strength (ksi)406080100
Min. Tensile Strength (ksi)6080100115

Metric Rebar Properties

Metric sizes

SizeNominal Dia.(mm)Nominal Area (mm2)Nominal Mass(kg/m)
10M11.301000.785
15M16.002001.570
20M19.503002.355
25M25.205003.925
30M29.907005.495
35M35.7010007.850
45M43.70150011.775
55M56.40250019.625
(from CSA G30.18:21)
Source noted in worksheet: CSA G30.18:21

Imperial Rebar Properties

Imperial and SI equivalents

SizeDiameter (in.)Area (in²)Mass (lb/ft)Diameter (mm)Area (mm²)Mass (kg/m)
#30.3750.110.3769.5710.560
#40.5000.200.66812.71290.994
#50.6250.311.04315.92001.552
#60.7500.441.50219.12842.235
#70.8750.602.04422.23873.042
#81.0000.792.67025.45093.973
#91.1281.003.40028.76455.06
#101.2701.274.30332.38196.404
#111.4101.565.31335.810067.907
#141.6932.257.6543.0145211.38
#182.2574.0013.6057.3258120.24
#202.5004.9116.6963.5316724.84
Source noted in worksheet: ASTM A615-20