Q690E high strength low alloy steel plate
Q690E high strength sheet metal is a kind of high strength low alloy structural steel, with good mechanical properties and welding performance, it is widely used in bridges, construction, ships, vehicles and other fields.
The composition of Q690E high strength plate mainly includes carbon, silicon, manganese, phosphorus, sulfur, chromium, nickel, copper and other elements. Among them, carbon is one of the main elements of steel, which can improve the strength and hardness of Q690E low alloy steel sheet. Silicon and manganese can improve the strength and toughness of Q690E high strength steel sheet, and also improve the processing performance of Q690E high strength steel plate.
high tensile steel sheet Chemical Composition
| 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 |
| 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 |
low alloy steel material mechanical property
| Re yield strength Mpa min | Re yield strength Mpa min | elongation% min | Energy and temperature | |||||||||
| 0 | -20 | -40 | -60 | |||||||||
| t≤50 | 50-100 | 100-150 | t≤50 | 50-100 | 100-150 | 14 | J | J | J | J | ||
| 690 | 650 | 630 | 770-940 | 760-930 | - | 47 | 47 | 34 | 34 | |||
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