Specification:
Material: SPCC SPCD SPCCDT ST13 BLC BLD CR1 CR2 ST37-2 08AL 08YU DC01 DC02 DC03
Thickness: 0.2-4mm
Thickness tolerance: +/- 0.25%
Width: 600-2000mm
Surface treatment: Bright annealing, black annealing as your need
Surface structure: Zero spangle / minimized spangle / regular spangle/ big spangle
Type of coating: Hot dipped galvanized or electric galvanized
Zinc coating: Z60-275g/m2
ID coil: 508mm or 610mm
Coil weight: 3-8 MT per coil
Application: Industrial panels, roofing and siding for painting
Package of Cold Rolled Coil: Strapped with min three strapping strips, covered by anti-water paper and plastic film, fixed on the iron or wooden pallets by strapping strips and covered by plastic bag to prevent damage from transportation.
Process of Cold Rolled Coil:
Pickling: To clean the dust and rust points on the surface.
Cold Rolling: Digital rolling control system produces minimum thickness tolerance, helps to prevent twist and improve straightness.
Slitting: Precise slitting machinery helps control the best width tolerance and avoid camber or cracker.
Also we can make round or sharp edge with additional process and special machines.
Heat treatment: Advanced annealing, tempering and hardening techniques will help to produce proper mechanical property of the products to insure our client's usage with minimum harm to natural environment.
Surface finish | Pattern | Application |
Regular spangle | Standard spangles with flower pattern | General uses |
Minimized spanlge | Minimized spangles than regular | General painting applications |
Zero spangle | Extremely minimized spangles | Special painting applications |
Grades | Chemical composition | |||||||
C | Mn | S | P | Si | Als | Ti | Nb | |
HC340LA | ≤ 0.1 | ≤ 1.1 | ≤0.025 | ≤0.025 | ≤0.5 | ≥0.015 | ≤ 0.15 | ≤ 0.09 |
