Q550C low alloy steel material
Q550C hsla steel plate is a low alloy high strength structural steel with excellent mechanical properties and welding performance.
Hot rolling process characteristics of Q550C high strength alloy steel:
1. good weldability: the carbon equivalent of Q550C high strength steel is low, so it is not easy to produce cracks and other defects when welding, thus improving the welding quality.
2. high strength: Q550C steel high strength low alloy in the hot rolled state has a high tensile strength and yield strength, can meet a variety of engineering structure of the bearing requirements.
Q550C high strength low alloy steel because of its high strength and good low-temperature toughness, gradually be widely used in construction, bridges, ships, vehicles, pressure vessels and other important engineering fields.
high tensile steel 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 | 1.7 | 0.025 | 0.015 | 0.5 | 1.5 | 2 | 0.70 | 0.005 | 0.12 | 0.06 | 0.05 |
high strength low alloy steel plate 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 | 16 | J | J | J | J | ||
| 550 | 530 | 490 | 640-820 | 640-820 | 590-770 | 47 | 47 | 34 | 34 | |||
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