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GB/T 4171 Q355NH High strength weathering Steel Plate

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Standard: ASTM, AISI, GB, JIS, DIN, BS

Production Capacity: 50000 Tons/Month

GB/T 4171 Q355NH High strength weathering Steel Plate

GB/T 4171 Q355NH specification:
Thickness: 2mm-300mm
Width: 1000mm-4200mm
Length: 3000mm-18000mm

Main chemical elements composition of Q355NH:

Main chemical elements composition of Q355NH

















Mechanical property for Q355NH steel:

Thickness (mm)


≤ 16

> 16 ≤ 40

> 40 ≤ 60


Yield strength (≥Mpa)





Tensile strength (Mpa)


GB/T 4171 Q355NH Application:
Q355NH atmospheric corrosion structural steel plate is widely used to building shipping containers and offshore containers, such as Schedule waste storage container, Weather Shelters, Tool boxes, Workshop containers and so on.

Technical Requirements & Additional Services:
♦ High tension test
♦ Low temperature impacting test
♦ Simulate post-welded heat treatment (PWHT)
♦ Issued Original Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Shot blasting and Painting, Cutting and welding as per end user’s demands
♦ G101 Guide for estimating atmospheric corrosion resistance of low alloy steels

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