1. The allowable deviation of the average leg thickness of I-beam is ± 0.06t. (t is the average leg thickness dimension of I-beam, which is one of the parameters of I-beam. The allowable deviation of the average leg thickness of I-beam is ± 0.06t, indicating the thickness tolerance of the legs and the allowable variation range of leg thickness. For example, t=10, ± 0.06t is ± 0.6, indicating that the thickness of the legs is between 9.4 and 10.6, which is qualified)
2. The bending deflection of I-beam should not exceed 0.15d (waist thickness).
3. The outer edge slope of the I-shaped steel leg shall not exceed 1.5% b (leg width) for a single leg and 2.5% for both legs.
4. The passivation of the legs and shoulders of the I-beam shall not allow a round rod with a diameter equal to 0.18t to pass through.
Appearance:
1. Curvature. The bending degree of I-beam per meter shall not exceed 2mm. The total bending degree shall not exceed 0.2% of the total length.
2. Twist. The I-beam shall not have obvious torsion.
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