<SEC-DOCUMENT>0001047469-20-004076-index.html : 20200710
<SEC-HEADER>0001047469-20-004076.hdr.sgml : 20200710
<ACCEPTANCE-DATETIME>20200710164505
ACCESSION NUMBER:		0001047469-20-004076
CONFORMED SUBMISSION TYPE:	S-1/A
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20200710
DATE AS OF CHANGE:		20200710

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			A. M. Castle & Co.
		CENTRAL INDEX KEY:			0000018172
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-METALS SERVICE CENTERS & OFFICES [5051]
		IRS NUMBER:				360879160
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-1/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-239513
		FILM NUMBER:		201023570

	BUSINESS ADDRESS:	
		STREET 1:		1420 KENSINGTON ROAD
		STREET 2:		SUITE 220
		CITY:			OAK BROOK
		STATE:			IL
		ZIP:			60523
		BUSINESS PHONE:		8474557111

	MAIL ADDRESS:	
		STREET 1:		1420 KENSINGTON ROAD
		STREET 2:		SUITE 220
		CITY:			OAK BROOK
		STATE:			IL
		ZIP:			60523

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CASTLE A M & CO
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-1/A
<SEQUENCE>1
<FILENAME>a2242046zs-1a.htm
<DESCRIPTION>S-1/A
<TEXT>
Document 1 - file: a2242046zs-1a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>a2242046zex-5_1.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: a2242046zex-5_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>a2241954zex-23_1.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 3 - file: a2241954zex-23_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g563023.jpg
<DESCRIPTION>G563023.JPG
<TEXT>
Document 4 - file: g563023.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g30505.jpg
<DESCRIPTION>G30505.JPG
<TEXT>
Document 5 - file: g30505.jpg

</DOCUMENT>
</SEC-DOCUMENT>