Hot Rolled Mild Steel Sheets for Severe Forming

Formability is comparable with cold rolled steel sheets.

This is the hot rolled steel sheets that enables severe forming parts to be formed. It has the same stamping performance as cold rolled steel sheets.

Characteristics

1.It has excellent elongation (El) and stretch frangeability (λ).
2.Its practical properties such as fatigue property and secondary work embrittlement resistance are the same as those of conventional hot rolled steel sheets.
3.Hot-dipped galvannealed steel sheets also have excellent formability.

Steel Sheet	Steel Sheet for Sever Forming	Conventional Steel Sheet
YS	○	△
TS-El Balance	○	△
TS-λ Balance	○	△
Aging Characteristics	○	△
Drawability	○	○
Secondary Work Embrittlement Resistance	○	○

Practical Properties

Example of Mechanical Properties (thickness 2.3 mm)

Steel Sheet		Steel Sheets for Sever Forming		Conventional Steel Sheets
Steel Sheet		Hot Rolled Steel Sheets	Hot-dipped Galvanized Steel Sheets	Hot Rolled Steel Sheets	Cold Rolled Steel Sheets
Mechanical Property	YS (N/mm²)	180	210	220	190
	TS (N/mm²)	290	290	340	320
	El (%)	50	49	44	50
	n value	0.24	0.23	0.19	0.25
	λ (%)	200	190	140	180

Usage

Oil Pans, and Arms of difficult-to-mold products etc.

Contacts

Sheet Products Request for Business or Catalog: Sheet Products Sales Department; TEL: +81-3-5739-6182 (Tokyo); TEL: +81-52-584-6161 (Nagoya); TEL: +81-6-6206-6248 (Osaka)

Technical Matters: Sheet Products Marketing & Technical Services
Iron & Steel Business Kobe Steel, Ltd.; TEL: +81-3-5739-6271 (Tokyo); TEL: +81-52-584-6155 (Nagoya); TEL: +81-6-6206-6314 (Osaka); TEL: +81-82-258-5303 (Hiroshima); TEL: +81-92-451-6011 (Fukuoka)