Home > News Center > Product News

What is the Q345NQR2 steel?

What is the Q345NQR2 steel?

Q345NQR2 steel grade is designed in new standard of TB/T 1979-2014. It is equivalent to 09CuPCrNi-A grade in old standard of TB/T 1979-2003. Hot rolled steel Q345NQR2 plate and sheet should be delivered in hot rolled or hot rolled annealing condition.
Property: Q345NQR2 steel has good atmoSPHEric corrosion resistance. This material is suitable for railway rolling stock. We can supply TB/T 1979 Q345NQR2 steel plate, sheets and steel sections.

Q345NQR2 steel chemical composition (melting analysis, %)

C max Si Mn P S max Cu Cr Ni
0.12 0.25-0.75 0.20-0.50 0.060-0.12 0.020 0.25–0.50 0.30-1.25 0.12-0.65
Q345NQR2 steel mechanical properties
Grade Yield Strength (MPa) min. Tensile Strength (MPa) min. Elongation min. %
Q345NQR2 345 480 24
The specifications of TB/T 1979 Q345NQR2 steel plates available are: thickness 1.5-100mm, width 1500-4200mm, length 4000-17000mm. We can also provide cutting, welding, drilling, grinding and turning services as required. For more information of Q345NQR2 steel price and stock, welcome to contact us.

Pre: What is application of A387Gr12CL2 alloy

Next: Q345C seamless tube China stock

Contact Us

Shanghai Katalor Enterprises Co., Ltd

[email protected]
Unit 6,lane 2500,xiupu Road,Kangqiao Industrial Area,Pudong New District,Shanghai
Live Chat