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

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * Koch Stephen Paul   2. Issuer Name and Ticker or Trading Symbol RELIANCE STEEL & ALUMINUM CO [RS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Sr. VP, Operations (Last) (First) (Middle) 590 N. BETHLEHEM PIKE 3. Date of Earliest Transaction (Month/Day/Year) 09/03/2014 (Street) LOWER GWYNEDD, PA 19002 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 09/03/2014   M   6,250 A $ 42.81 16,934 (1) D   Common Stock 09/03/2014   M   6,250 A $ 55.73 23,184 (1) D   Common Stock 09/03/2014   S   11,684 D $ 71.14 (2) 11,500 (1) D   Common Stock               947 I Held by Trustee of Reliance Steel & Aluminum Co. 401(k) Plan Common Stock               156 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.
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.		SEC 1474 (9-02)

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

Options to Acquire Common Stock

$ 42.81

09/03/2014

M

6,250

(3)

02/23/2017

Common Stock

6,250

$ 0

0 (4)

D

Options to Acquire Common Stock

$ 55.73

09/03/2014

M

6,250

(5)

02/23/2018

Common Stock

6,250

$ 0

6,250 (4)

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Koch Stephen Paul 590 N. BETHLEHEM PIKE LOWER GWYNEDD, PA 19002			Sr. VP, Operations

Signatures

/s/ Stephen Koch by William A. Smith II as his Attorney-in-Fact		09/04/2014
**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 3,000 restricted shares subject to vesting over time.
(2)	The price reported represents the weighted average sale price of the shares disposed of. The actual sale prices ranged from $70.98 to $71.36. 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 options vested and became exercisable in four equal annual installments beginning on February 23, 2011, which was the first anniversary of the date on which the options were granted.
(4)	In the aggregate, the Reporting Person beneficially owns 6,250 options to acquire common stock (with an exercise price of $55.73 per share and an expiration date of February 23, 2018) as of the date of this report. In addition, the Reporting Person beneficially owns 30,000 restricted stock units subject to performance and service criteria.
(5)	The options vest and become exercisable in four equal annual installments beginning on February 23, 2012, which is the first anniversary of the date on which the options were granted.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.