FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * HANNAH DAVID H   2. Issuer Name and Ticker or Trading Symbol RELIANCE STEEL & ALUMINUM CO [RS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Executive Chairman (Last) (First) (Middle) 350 SOUTH GRAND AVENUE, SUITE 5100 3. Date of Earliest Transaction (Month/Day/Year) 03/02/2016 (Street) LOS ANGELES, CA 90071 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 03/02/2016   M   40,000 A $ 42.81 238,000 (1) I Held by Trustees of The David H. and Joan B. Hannah Family Trust, dated April 13, 2010 Common Stock 03/02/2016   S   23,400 D $ 64.43 (2) 214,600 (1) I Held by Trustees of The David H. and Joan B. Hannah Family Trust, dated April 13, 2010 Common Stock 03/02/2016   S   16,600 D $ 65.63 (3) 198,000 (1) I Held by Trustees of The David H. and Joan B. Hannah Family Trust, dated April 13, 2010 Common Stock 03/03/2016   M   40,000 A $ 55.73 238,000 (1) I Held by Trustees of The David H. and Joan B. Hannah Family Trust, dated April 13, 2010 Common Stock 03/03/2016   S   34,143 D $ 65.37 (4) 203,857 (1) I Held by Trustees of The David H. and Joan B. Hannah Family Trust, dated April 13, 2010 Common Stock 03/03/2016   S   5,857 D $ 66.13 (5) 198,000 (1) I Held by Trustees of The David H. and Joan B. Hannah Family Trust, dated April 13, 2010 Common Stock               27,896 I Held by Trustee of Reliance Steel & Aluminum Co. Employee Stock Ownership Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Option to Acquire Common Stock

$ 42.81

03/02/2016

M

40,000

(6)

02/23/2017

Common Stock

40,000

$ 0

0 (7)

D

Option to Acquire Common Stock

$ 55.73

03/03/2016

M

40,000

(8)

02/23/2018

Common Stock

40,000

$ 0

60,000 (9)

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
HANNAH DAVID H 350 SOUTH GRAND AVENUE SUITE 5100 LOS ANGELES, CA 90071	X		Executive Chairman

Signatures

/s/ David H. Hannah by William A. Smith II as his Attorney-in-Fact		03/04/2016
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Includes 8,000 restricted shares subject to vesting over time and 10,000 unvested restricted stock units subject to service criteria.
(2)	The price reported represents the weighted average sale price of the shares disposed of. The actual sale prices ranged from $64.06 to $65.00. 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.
(3)	The price reported represents the weighted average sale price of the shares disposed of. The actual sale prices ranged from $65.15 to $65.86. 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.
(4)	The price reported represents the weighted average sale price of the shares disposed of. The actual sale prices ranged from $64.96 to $65.94. 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.
(5)	The price reported represents the weighted average sale price of the shares disposed of. The actual sale prices ranged from $65.98 to $66.73. 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.
(6)	The options vested and became exercisable in four equal annual installments beginning on February 23, 2011.
(7)	In addition, the Reporting Person beneficially owns 140,000 restricted stock units that were collectively granted in 2013, 2014 and 2015 subject to performance criteria (with various vesting dates) and 60,000 options to acquire common stock, each with an expiration date of February 23, 2018 and an exercise price of $55.73, as of the date of this report.
(8)	The options vested and became exercisable in four equal annual installments beginning on February 23, 2012.
(9)	In addition, the Reporting Person beneficially owns 140,000 restricted stock units that were collectively granted in 2013, 2014 and 2015 subject to performance criteria (with various vesting dates) as of the date of this report.

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