The steel grades for cold forming can be preferred in bending and deep drawing processes where toughness and ductile properties are required. These steels are mainly used in automotive components such as body panels, metal furniture, appliances, radiators, some profiles and ventilation equipments. Non-ageing extra deep-drawing steels (IF) are the best material to fulfill the automotive and white goods sector’s special expectations, due to their superior formability and weldabilities. General Application Areas High strength low alloy steels (HSLA), with a good formability and improved weldability, having low content of carbon and produced by micro-alloying methods, are mainly used in automotive and its supplier industry. Steels which are enamelled by one/two layer or one/two firing, has deep drawing properties and is therefore mainly preferred in the manufacture of kitchenware, such as pans, pots etc
CR: Cold rolled, batch annealed coil
CRK: Cold rolled, batch annealed coil with trimmed edge
CRF: Cold rolled, not annealed (full-hard) coil, produced in cold rolling mill no.1
ICCR: Cold rolled, continuously annealed thin coil
CCR: Cold rolled, continuously annealed coil
CCRK: Cold rolled, continuously annealed coil with trimmed edge
CCRF: Cold rolled, not annealed (full hard) coil, produced in cold rolling mill no.2
Dimensions:
• Thickness, width and length values are nominal, unless otherwise specified.
• Coil inner diameter may be 508 or 610 mm (+/- 20 mm) depending on request
Surface Protection: Oiling (O):
Slight : 250 – 500 mg/m2 Light : 500 – 1000 mg/m2
Normal : 1000 – 2000 mg/m2
Abundant : 1500 – 3000 mg/m2 (Normal oiling values for export products)
Surface Quality:
A and B surface qualities are ensured to be in accordance with EN 10130 standards. Unless otherwise specified production is made according to ‘A’ surface quality
. • A surface: Imperfections that do not affect the forming or surface coating properties such as pores, shallow dips, small marks, minor scratches and vague colorations are permissible.
• B surface: While one side has to be at least of A surface quality level, the other side should not feature any defects which might disrupt the decent smooth surface appearance after painting or electrolytic coating.
