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1. Steel Grade: Q345
3. Product name: GB Q345 Hot Rolled Froged Low alloy Corten Steel Plate
4. Length: 3000-12000mm
5. Width: 1000-3000mm
6. Thickness: 4-200mm
Chemical Composition % of Grade Q345
C(%) | Mn(%) | P(%) | S(%) | V(%) | Nb(%) | Al(%) | Ti(%) |
0.18 | 0.55 | 0.025 | 0.025 | 0.02-0.15 | 0.015-0.060 | 0.015 | 0.02-0.20 |
Hardness and heat treatment specification of Grade Q345
Annealing hardness HBS | Cold pull hardness HBS | Preheating temperature ℃ | Quenching temperature ℃ | Holding time min | Hardening medium | Temper temperature ℃ | After tempering hardness ≥HRC | |
salt-bath furnace | controlled atmosphere furnace | |||||||
235 | 262 | 788 | 1191 | 1204 | 5~15 | air cooling | 522 | 60 |
Steel plate/Sheet thickness / mm | σb MPa | σs ≥/MPa | δ Samples from the standard for 50 mm (2 in) | 180 ° of cold bending test | |
longitudinal | horizontal | ||||
Hot-rolled/Cold rolling:5 - 150 | 520 | 415 | 16~18 | 2a | 3.5a |
Corten is a very popular steel due to the materials rustic and
aesthetically pleasing appearance. It is a weather resistant steel
which reacts to natural elements in the atmosphere and forms its
own protective layer of rust. This layer continues to replenish
itself over time and therefore the steel does not usually require
any form of external treatment.
The steel is used in a variety of applications, both structural and
cosmetic, including bridge construction, structural framework and
building facias.
1.Production Std: ASTM,ASME,JIS,DIN,BS,EN,
2. Delivery State: HR,TMCP, Q&T, N, T, N&T,Z15,Z25,Z35,
Ultrasonic test, Sharp V-notch impact test, HIC test ,etc
3. Dimension Thickness: 5mm~650mm; Width:1200~4200mm;
Length:3000~18800mm
4. Trade Terms: FOB, CFR, CIF
5. Payment Terms: T/T, Irrevocable at sight L/C
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