High Strength Board
Grade: Q390, Q420, Q460, Q550, Q690
+86 18354173223
sales04@jnsgsteel.cn
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◉ Product Details

Product name: High strength board

Grade: Q390, Q420, Q460, Q550, Q690

Standard: GB/T 16270-2009

Technology: continuous casting, continuous rolling and annealing, etc.

Processing method: welding, cutting, punching, polishing or as per customer requirements

Purpose: manufacturing of structural parts in construction, machinery, petroleum, chemical, aviation, aerospace and other industries, manufacturing steel bars in housing construction, beams and columns in steel structure buildings, etc.; gears, shafts, etc. in machinery manufacturing; petroleum pipelines, chemical equipment, etc. ; Aircraft landing gear, rocket engines, etc.

Value-added technologies: galvanizing, spray painting, anti-corrosion coating,

Regular order: 25 tons or one container, you can also contact us for small quantities

Packaging: Standard seaworthy export packaging: waterproof paper + steel triple packaging + wooden box

Construction period; 7-15 days

chemical composition:

GRADELechemical composition %
C≤Si≤Mn≤P≤S≤Alt≥NbTi≤
Q390A0.20.51.70.0350.035
0.2
B0.0350.035
C0.030.03
D0.030.025
E0.0250.02
Q420A0.20.51.70.0350.035
0.2
B0.0350.035
C0.030.03
D0.030.025
E0.0250.02
Q460C0.20.61.80.030.03
0.2
D0.030.025
E0.0250.02
Q550C0.180.620.030.03
0.2
D0.030.025
E0.0250.02
Q690C0.180.620.030.03
0.2
D0.030.025
E0.0250.02



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