China Galvalume Steel Coil Gl Sheet with Zinc Aluminum Coating 100g Sqm, Find details about China Zincalu Steel Coil, Zincalu Steel Sheet in Roll from Galvalume Steel Coil Gl Sheet with Zinc Aluminum Coating 100g Sqm
Chemical Requiremetns for structure steel | ||||||||||||
Composition, %-Heat Analysis Element, maximum, unless otherwise Shown | ||||||||||||
Designation | C | Mn | P | S | Cu | Ni | Cr | Mo | V | Cb | TiA | NB |
G230 | 0.20 | 1.35 | 0.04 | 0.04 | 0.25 | 0.20 | 0.15 | 0.06 | 0.008 | 0.008 | 0.025 | ^ |
G255 | 0.20 | 1.35 | 0.10 | 0.04 | 0.25 | 0.20 | 0.15 | 0.06 | 0.008 | 0.008 | 0.025 | ^ |
G275 | 0.25 | 1.35 | 0.10 | 0.04 | 0.25 | 0.20 | 0.15 | 0.06 | 0.008 | 0.008 | 0.025 | ^ |
G340 | 0.25 | 1.35 | 0.20 | 0.04 | 0.25 | 0.20 | 0.15 | 0.06 | 0.008 | 0.008 | 0.025 | ^ |
G550 | 0.20 | 1.35 | 0.04 | 0.04 | 0.25 | 0.20 | 0.15 | 0.06 | 0.008 | 0.015 | 0.025 | ^ |