<SEC-DOCUMENT>0001104659-20-101448-index.html : 20200901
<SEC-HEADER>0001104659-20-101448.hdr.sgml : 20200901
<ACCEPTANCE-DATETIME>20200901170425
ACCESSION NUMBER:		0001104659-20-101448
CONFORMED SUBMISSION TYPE:	NT 10-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200630
FILED AS OF DATE:		20200901
DATE AS OF CHANGE:		20200901
EFFECTIVENESS DATE:		20200901

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:		NT 10-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-05828
		FILM NUMBER:		201154978

	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>NT 10-K
<SEQUENCE>1
<FILENAME>tm2030036d1_nt10k.htm
<DESCRIPTION>NT 10-K
<TEXT>
Document 1 - file: tm2030036d1_nt10k.htm

</DOCUMENT>
</SEC-DOCUMENT>