q690e-carbon-steel-h-beam is widely used, mainly for: various civil and industrial building structures; various large-span industrial plants and modern high-rise buildings, especially those in areas with frequent seismic activity and high-temperature working conditions; large bridges requiring large bearing capacity and large cross-section with good stability and span; heavy equipment; highways; ship skeletons; mine supports; foundation treatment and dike works; various mechanical parts.
q690e-carbon-steel-h-beam Chemical Composition
| STEEL GRADE | C% max | Si% max | Mn% max | P% max | S% max | Cu% max | Cr% max | Ni% max | Mo % max | B % max | V % max | Nb% max | Ti % max |
| Q690E | 0.2 | 0.80 | 1.8 | 0.025 | 0.015 | 0.5 | 1.5 | 2 | 0.70 | 0.005 | 0.12 | 0.06 | 0.05 |
q690e-carbon-steel-h-beam Chemical Composition
| Q690 Chemical Composition (%) | ||||||||||||||||
| Steel Grade | Quality Grade | C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | N | Mo | B | Al |
| Q690 | Q690C | ≤ 0.18 | ≤ 0.60 | ≤ 2.00 | ≤0.030 | ≤0.030 | ≤ 0.11 | ≤ 0.12 | ≤ 0.20 | ≤ 1.00 | ≤ 0.80 | ≤ 0.80 | ≤ 0.015 | ≤ 0.30 | ≤ 0.004 | ≥ 0.015 |
| Q690D | ≤0.030 | ≤0.025 | ||||||||||||||
| Q690E | ≤0.025 | ≤0.020 | ||||||||||||||
q690e-carbon-steel-h-beam has high strength, good plasticity and toughness, good weldability, good cold and hot properties. Q690E steel material is mainly used for manufacturing various large-scale engineering structural components and construction machinery.
With high strength and good toughness, Q690E steel material can reduce the self weight of components and meet the requirements of large-scale and lightweight engineering components and equipment under the condition of ensuring strength, stiffness and reliability.
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