9.1.1. Torsion Modulus of Rupture for Round Steel Tubes

Reference: Abbott, Richard. Analysis and Design of Composite and Metallic Flight Vehicle Structures 3 Edition, 2019.

For circular cross sections the following figures give the torsion modulus of rupture for a range of steels:

Figure 9.1.1‑1: Torsional Modulus of Rupture – Plain Carbons Steels Ftu = 55ksi  (MIL-HNDBK-5H, 1998)
Figure 9.1.1‑2: Torsional Modulus of Rupture – Low Alloy Steels Treated to Ftu = 90ksi  (MIL-HNDBK-5H, 1998)
Figure 9.1.1‑3: Torsional Modulus of Rupture – Low Alloy Steels Treated to Ftu = 95ksi  (MIL-HNDBK-5H, 1998)
Figure 9.1.1‑4: Torsional Modulus of Rupture – Low Alloy Steels Heat Treated to Ftu = 125ksi  (MIL-HNDBK-5H, 1998)
Figure 9.1.1‑5: Torsional Modulus of Rupture – Low Alloy Steels Heat Treated to Ftu = 150ksi  (MIL-HNDBK-5H, 1998)
Figure 9.1.1‑6: Torsional Modulus of Rupture – Alloy Steels Heat Treated to Ftu = 180ksi  (MIL-HNDBK-5H, 1998)
Figure 9.1.1‑7: Torsional Modulus of Rupture – Alloy Steels Heat Treated to Ftu = 200ksi  (MIL-HNDBK-5H, 1998)
Figure 9.1.1‑8: Torsional Modulus of Rupture – Alloy Steels Heat Treated to Ftu = 220ksi  (MIL-HNDBK-5H, 1998)
Figure 9.1.1‑9: Torsional Modulus of Rupture – Alloy Steels Heat Treated to Ftu = 240ksi  (MIL-HNDBK-5H, 1998)
Figure 9.1.1‑10: Torsional Modulus of Rupture – Alloy Steels Heat Treated to Ftu = 260ksi  (MIL-HNDBK-5H, 1998)