Is CalcSteel really free to use?

Yes. CalcSteel is genuinely free — the Free plan includes the full 3D editor, FEM solver, 1,140+ steel profiles, and code verification per NBR 8800, AISC 360, Eurocode 3, AS 4100 and IS 800. Paid plans ($12–29/month) add project saving, unlimited sheets and clean PDF export. No credit card required to start.

What is the best free alternative to SAP2000 and CYPE 3D?

CalcSteel is a browser-based alternative focused on steel structures. For steel frame analysis, portal frames, warehouses and code verification you get a workflow comparable to SAP2000 and CYPE 3D — at zero cost. SAP2000 is still needed for complex dynamics, nonlinear analysis and multi-material projects. CYPE remains stronger in concrete, timber and connection design.

Which design standards does CalcSteel support?

CalcSteel currently verifies steel members per five major international standards: NBR 8800 (Brazil), AISC 360 (USA), Eurocode 3 / EN 1993 (Europe), AS 4100 (Australia) and IS 800 (India). This covers roughly 120+ countries. NBR 14762 for cold-formed sections is also supported.

Do I need to install anything to use CalcSteel?

No. CalcSteel runs entirely in the browser — Chrome, Firefox, Safari or Edge — using WebAssembly for the FEM solver. There is nothing to install, no license server, no dongle. It works on Windows, macOS, Linux and Chromebook.

Can I export my project as a PDF or IFC/BIM file?

Yes. CalcSteel generates professional PDF reports with load combinations, internal forces, utilization ratios and design verification tables. IFC / BIM export is available for interoperability with Revit, Tekla and other BIM tools.

Catálogo de Perfis Metálicos

U 75x40x2.66

BR — Perfil U (Canal)

Canais conformados a frio (perfis U) utilizados em estruturas leves e elementos secundários.

Também conhecido como: U 75x40x2.66 (UK / Australia)

O perfil de aço U 75x40x2.66 pesa 3.0 kg/m (2.04 lb/ft), possui altura de 75 mm (2.95 in), largura de mesa 40 mm (1.57 in). Área da seção transversal: 391.1 mm². Momento de inércia Ix = 34.39 cm⁴, Iy = 5.73 cm⁴.

Seção transversal (fora de escala)

Equivalência popular: espessura 2.66 mm = Chapa 12 (nomenclatura comercial brasileira)

Dimensões

Propriedade	Métrico	Imperial
Altura (h)	75 mm	2.95 in
Largura (b)	40 mm	1.57 in
Espessura (t)	2.7 mm	0.10 in
Peso	3.0 kg/m	2.04 lb/ft

Propriedades da Secção

Propriedade	Métrico	Imperial
Área (A)	391.1 mm²	0.606 in²
Momento de inércia (Ix)	34.39 cm⁴	0.83 in⁴
Momento de inércia (Iy)	5.73 cm⁴	0.14 in⁴
Módulo de resistência elástico (Sx)	9.17 cm³	0.560 in³
Módulo de resistência elástico (Sy)	1.88 cm³	0.115 in³
Módulo de resistência plástico (Zx)	10.55 cm³	0.644 in³
Módulo de resistência plástico (Zy)	2.25 cm³	0.137 in³
Raio de giração (rx)	2.97 cm	1.169 in
Raio de giração (ry)	1.21 cm	0.476 in

U 75x40x2.25 U 75x40x3.05

Calculadora de Viga— U 75x40x2.66

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Vãomfixed @ 0mfixed @ 6m→kN/m

Resultados — U 75x40x2.66

Mmáx

15.0 kN·m

Vmáx

15.0 kN

δmáx

245.35 mm

L/24

R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m

Norma:

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