Chemical composition and mechanical properties of Q355NHB weathering steel

Q355NHB grade introduction
Q355NHB is a weathering steel plate and also belongs to the low alloy series steel.
The letter Q is the first letter of the yield
The number 355 means the yield strength is 355MPa
The letter NH is the initial letter of weather-resistant
The letter B stands for level

Chemical composition of Q355NHB weathering steel plate:
C: 0.12-0.21,
Si: 0.2 to 2.0,
Mn: 0.7-2.0,
S ≤0.036,
P≤0.034,
Cu: 0.10 to 0.40

Delivery status: controlled rolling, hot rolling, normalizing rolling, normalizing, etc.

Q355NHB weathering steel sheet properties:
Q355NH weathering steel plate characteristics: it has the characteristics of high-quality steel such as toughness, plasticity, forming, welding and cutting, abrasion, high temperature, fatigue and so on.

Purpose of Q355HNB weathering steel:
Mainly used in railways, vehicles, bridges, towers and other steel structures exposed to the atmosphere for a long time. Weathering steel is mainly used to manufacture structural parts such as containers, railway vehicles, oil derricks, seaport buildings, oil production platforms and containers containing hydrogen sulfide corrosive medium in chemical and petroleum equipment.