carbon-steel-h-beam-q345d is a low alloy steel material commonly used in motor vehicles, bridges, ships, and construction. Also known as GB/T 1591, the Q signifies the yield point, and the 345 references the strength of yield. As such, it is essential to note that the yield value decreases as the material thickness increases.
carbon-steel-h-beam-q345d Carbon Equivalent (CEV)
Based on smelting analysis, steel delivered in hot rolled state.
| CEV (Mass fraction ≤%); Nominal thickness or diameter (d) | ||||||
| Steel Grade | Quality Grade | ≤ 30 | 30 < d ≤ 63 | 63 < d ≤ 150 | 150 < d ≤ 250 | 250 < d ≤ 400 |
| Q355 | Q355B | 0.45 (CEV) | 0.47 | 0.47 | 0.49 | – |
| Q355C | – | |||||
| Q355D | 0.49 | |||||
carbon-steel-h-beam-q345d is low alloy structural steel with good mechanical properties, low temperature performance, plasticity and good weldability, it is mostly used in low pressure vessel, oil tank, vehicles, cranes, mining machinery, power stations, mechanical parts, building structure, general metal parts, carbon-steel-h-beam-q345d is always delivered in hot rolled or normalizing state, can be used in areas where its temperature is above -40 ℃.
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