<SEC-DOCUMENT>0000315066-17-002774-index.html : 20170911
<SEC-HEADER>0000315066-17-002774.hdr.sgml : 20170911
<ACCEPTANCE-DATETIME>20170911112517
ACCESSION NUMBER:		0000315066-17-002774
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20170911
DATE AS OF CHANGE:		20170911

SUBJECT COMPANY:	

	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:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-34049
		FILM NUMBER:		171078378

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FMR LLC
		CENTRAL INDEX KEY:			0000315066
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				043532603
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		245 SUMMER STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210
		BUSINESS PHONE:		6175706339

	MAIL ADDRESS:	
		STREET 1:		245 SUMMER STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FMR CORP
		DATE OF NAME CHANGE:	19920717
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>filing.txt
<TEXT>
Document 1 - file: filing.txt

</DOCUMENT>
</SEC-DOCUMENT>