Structural E - Book
Contents
Introduction
Loads
Materials
Shapes and Sizes
Design
Structural Engineering
Stress Analysis
Detailing
Drafting
Documentation
Beam Formulas
Frame Formulas
Material Properties
Standard Shapes and Properties
Combined Properties
Matrix Method of Structural Analysis
Stress Limits
Deformation Limits
Foundations
Structural Steel Design an per Is : 800 - 2007
A Hundred Questions on Boilers
Material Properties
Table 1.1 Chemical Composition of Structural Steels
No Quantity IS Code Maximum Percentage of Limits Tensile Strength
C S P Mn Si Cr Ni MPa
1 (a) Standard Structural,
C = 0.2 to 0.35%		 Fe 410 226 0.23 0.055 0.055   0.10 - - 410
  (b) Hot rolled rivet bars Fe 410 1148               410
  (c) HT rivet bars Fe 460 1149               460
2 Cold Worked HYSD bars Fe 415 1786 0.25 0.055 0.055 - - - - 485
    Fe 500 1786 0.30 0.05 0.050 - - - - 550
3 Structural ordinary Fe 310 1977 0.23 0.07 0.070 - - - - 310
    Fe 410 1977 0.23 0.07 0.070 - - - - 410
4 Weldable quality Fe 410 2062 0.20 0.055 0.055 1.0 - - - 440
    Fe 440 HT 8500 0.25 0.055 0.055 1.5 - - - 490
    Fe 440 HT 8500 0.25 0.040 0.040 1.5 - - - 590
    Fe 440 HT 8500 0.25 0.050 0.050 1.5   - -  
5 Alloy Steels 37 Mn 2 1570 0.42 - - 1.7 0.35 - -  
  (some) 40 Cr 1 0.45 - - 0.9 0.35 1.2 -  
    40 Ni 1 Cr 60 0.40 - - 0.71 0.35 0.75 1.75  
C = carbon, S = sulphur, P = phosphorus, Mn = manganese, Si = silica, Cr = chromium, Ni=nickel
Table 1.2 Some Mechanical Properties of Structural Steels
Quality Structural Type Tensile Strength Yield Elongation
Thickness (mm) Minimum 2 (N/mm) Range Stress 2 (N/mm) Minimum % Range %
Fe 310-0 All Shapes 310 310-430 180 26 26-35
Fe 370-0 Upto 20 370 370-480 225 23 25-30
Above 20 370 215 23 25-30
Fe 410-0 Upto 20 410 410-530 250 23 23-30
20 to 40 410 240 23 23-28
Above 40 410 230 23 23-28
Fe 540-HT Medium Upto 16 540 540-620 350 20 20-25
16 to 32 540 540-620 340 20 20-25
32 to 63 510 510-600 330 20 20-25
Above 63 490 490-580 280 20 20-25
Fe 570-HT Upto 28 570 570-700 350 20 20-25
28 to 45 570 340 20
45 to 63 570 320 20
Above 63 540 290 20
O = Ordinary or Standard, HT = High Tensil