CISC S-Shapes & Section Properties

Browse CISC American standard beams from Structural Section Tables SST12.1. Compare metric-native dimensions and section properties, open a designation for full details, or load a section into Optimal Beam.

Search Sections Compare Sections Open in Beam Calculator Export Excel or PDF Open 2D Structural Analysis

Steel Section Finder

Search or browse standard steel sections.

Showing CISC · S-Shapes · Metric

CISC Structural Section Tables SST12.1 · 1,514 sections

Searches every available library and shape family. Leave the field empty to browse the filters below.

Showing the most relevant 75 sections.

CISC S-shape dimensions and section properties in metric units
Designation Weight (kg/m) Depth, d (mm) Flange width, bf (mm) Area (mm²) Ix (mm⁴) Sx (mm³)
S610×158 158 622 200 20100 1220000000 3940000
S610×180 180 622 204 22900 1310000000 4220000
S610×119 119 610 178 15200 879000000 2880000
S610×134 134 610 181 17100 939000000 3080000
S610×149 149 610 184 18900 996000000 3270000
S510×128 128 516 179 16400 658000000 2550000
S510×143 143 516 183 18200 700000000 2710000
S510×98.2 98.2 508 159 12500 497000000 1950000
S510×112 112 508 162 14200 532000000 2090000
S460×81.4 81.4 457 152 10400 335000000 1470000
S460×104 104 457 159 13300 387000000 1690000
S380×64 64 381 140 8150 187000000 980000
S380×74 74 381 143 9500 203000000 1060000
S310×47 47 305 127 6040 91000000 597000
S310×52 52 305 129 6650 95800000 628000
S310×60.7 60.7 305 133 7720 113000000 743000
S310×74 74 305 139 9470 127000000 833000
S250×38 38 254 118 4810 51400000 405000
S250×52 52 254 126 6660 61500000 484000
S200×27 27 203 102 3490 24000000 236000
S200×34 34 203 106 4370 27000000 266000
S150×19 19 152 85 2370 9160000 121000
S150×26 26 152 91 3260 10900000 143000
S130×15 15 127 76 1890 5110000 80500
S100×11 11 102 68 1460 2560000 50200
S100×14.1 14.1 102 71 1800 2850000 55900
S75×8 8 76 59 1070 1040000 27400
S75×11 11 76 64 1430 1220000 32000

Family overview

What are CISC S-Shapes?

Browse CISC American standard beams from Structural Section Tables SST12.1. Compare metric-native dimensions and section properties, open a designation for full details, or load a section into Optimal Beam.

Designations

Understanding S-Shapes designations

CISC S designations use nominal metric depth and mass.

Nominal depth series

Browse by series

Use these series labels to filter the finder table above.

S75 S100 S130 S150 S200 S250 S310 S380 S460 S510 S610

Properties

S-Shapes properties explained

These properties are especially relevant when comparing S-Shapes. View the complete property glossary.

Symbol Property Units Why it matters
Weight Weight lb/ft, kg/m Mass per unit length; used for self-weight and economy comparisons
d Overall depth in, mm Overall depth and clearance
bf Flange width in, mm Overall flange width and lateral behaviour
tw Web thickness in, mm Web thickness and shear-related behaviour
tf Flange thickness in, mm Flange thickness and flexural/local behaviour
A Cross-sectional area in², mm² Total steel cross-sectional area
Ix Moment of inertia (x) in⁴, mm⁴ Major-axis flexural stiffness
Iy Moment of inertia (y) in⁴, mm⁴ Minor-axis flexural stiffness
Sx Elastic section modulus (x) in³, mm³ Elastic bending property about the x-axis
Sy Elastic section modulus (y) in³, mm³ Elastic bending property about the y-axis
Zx Plastic section modulus (x) in³, mm³ Plastic bending property about the x-axis
Zy Plastic section modulus (y) in³, mm³ Plastic bending property about the y-axis
rx Radius of gyration (x) in, mm Strong-axis radius of gyration
ry Radius of gyration (y) in, mm Weak-axis radius of gyration and lateral stability relevance
J Torsional constant in⁴, mm⁴ Torsional constant
Cw Warping constant in⁶, mm⁶ Warping constant for lateral-torsional behaviour

Library summary

Computed S-Shapes summary

The current CISC S-Shapes library contains 28 sections across 11 nominal-depth series. Published weights range from 5.70 to 121.00 lb/ft , and actual depths range from 2.99 to 24.49 inches .

Lightest section
S75x8
Heaviest section
S610x180
Ix range
2.50 – 3,147.29 in⁴
Sx range
1.67 – 257.52 in³

Related families

Related CISC families

W-Shapes M-Shapes HP-Shapes Channels MC Channels Angles All CISC families

Beam calculator

Analyze this family in Optimal Beam

Select a designation and load it into the Optimal Beam calculator.

Open beam calculator

Source: CISC Structural Section Tables SST12.1 v12.1 · Verified July 2026 · View methodology