RELIANCE, INC. — Director's Dealing 2012

May 3, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: RELIANCE STEEL & ALUMINUM CO (RS)
CIK: 0000861884
Period of Report: 2012-05-01

Reporting Person: HANNAH DAVID H (Director, CEO and Chairman)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-01	Common Stock	M	50000	$33.70	Acquired	310000	Direct
2012-05-01	Common Stock	S	43782	$56.64	Disposed	266218	Direct
2012-05-01	Common Stock	S	6218	$57.21	Disposed	260000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-05-01	Options to Acquire Common Stock	$33.70	M	50000	Disposed	2016-04-27	Common Stock (50000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	27535	Indirect

Footnotes

F1: The price reported represents the weighted average sale price of the shares disposed of. The actual sale prices ranged from $56.16 to $57.13. The Reporting Person has provided to the Issuer and hereby undertakes to provide upon request by the U.S. Securities and Exchange Commission Staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1) and (2) to this Form 4.

F2: The price reported represents the weighted average sale price of the shares disposed of. The actual sale prices ranged from $57.18 to 57.27.

F3: In addition, the Reporting Person beneficially owns 350,000 options to acquire common stock (with various exercise prices and expiration dates) as of the date of this report. The Reporting Person also beneficially owns 40,000 restricted stock units subject to performance and service criteria.