Q690C HSLA Steel Plate
Q690C high strength plate is one of the grades of national standard tempered high strength steel plate, which belongs to the category of structural steel.Q is the yield strength, 690 is its minimum yield value, and C is its grade.
Q690C high strength sheet metal has high yield strength and tensile strength and is used in buildings, bridges, ships, vehicles, pressure vessels and other structures.
At the same time, Q690C high strength structural steel also has a certain toughness, wear resistance, fatigue resistance and welding easy processing performance.
hhigh tensile steel plate 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 |
high strength alloy steel 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 | 710-900 | 47 | 47 | 34 | 34 | |||
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