<SEC-DOCUMENT>0001104659-17-033985-index.html : 20170519
<SEC-HEADER>0001104659-17-033985.hdr.sgml : 20170519
<ACCEPTANCE-DATETIME>20170519140856
ACCESSION NUMBER:		0001104659-17-033985
CONFORMED SUBMISSION TYPE:	SD
PUBLIC DOCUMENT COUNT:		1
<RULE>
<RULE-NAME>13p-1
<ITEM>
<ITEM-NUMBER>1.01
<ITEM-PERIOD>20161231
</ITEM>
</RULE>
FILED AS OF DATE:		20170519
DATE AS OF CHANGE:		20170519

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CARPENTER TECHNOLOGY CORP
		CENTRAL INDEX KEY:			0000017843
		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL WORKS, BLAST FURNACES  ROLLING MILLS (COKE OVENS) [3312]
		IRS NUMBER:				230458500
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		SD
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-05828
		FILM NUMBER:		17857369

	BUSINESS ADDRESS:	
		STREET 1:		BNY MELLON BUILDING
		STREET 2:		1735 MARKET STREET, 15TH FL
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19103
		BUSINESS PHONE:		6102082000

	MAIL ADDRESS:	
		STREET 1:		BNY MELLON BUILDING
		STREET 2:		1735 MARKET STREET, 15TH FL
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19103
</SEC-HEADER>
<DOCUMENT>
<TYPE>SD
<SEQUENCE>1
<FILENAME>a17-13873_1sd.htm
<DESCRIPTION>SD
<TEXT>
Document 1 - file: a17-13873_1sd.htm

</DOCUMENT>
</SEC-DOCUMENT>