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Part Number WS 1.7139

Technical Data Sheet

Our EC-80 is Manufactured in Rod, Bar and coil (WS 1.7139 / AISI 5115 Case Hardening Steel).

Chemical Composition Limits
Weight %	C	Cr	Mn	Si	P	S	Fe
EC-80	0.14-0.19	0.80-1.15	1.00-1.30	0.15-0.40	0.035	0.020-0.035	Rem
Other Chemically similar Specifications
Weight %	C	Cr	Mn	Si	P	S	Fe
WS 1.7139	0.14-0.19	0.80-1.10	1.00-1.30	0.40 max	0.035 max	0.020-0.040	Rem
16MnCrS5	0.14-0.19	0.80-1.10	1.00-1.30	0.40 max	0.035 max	0.020-0.040	Rem
AISI 5115	0.14-0.19	0.80-1.15	1.00-1.30	0.15-0.40 max	0.035 max	0.020-0.035	Rem
16MC4	0.14-0.19	0.80-1.15	1.00-1.30	0.15- 0.40 max	0.035 max	0.020-0.035	Rem

Standard Stock size
From 1 to 20mm, in steps sometimes 0.1 to 0.5

Diameter
Ø < 2.99 mm : high precision cold drawn and polished
Ø > 3.00mm: cold drawn, ground and polished, roughness N5-N6

Delivery form
In bars for automatic lathes of 3m (2m) lengths or in coils for ESCOMATIC machines

Tolerances
Standard ISO) h8, other close tolerance sizes available on request.

Tensile strength (Rm)
Standard 490-680 N/mm2

Heat Treatment
Case hardening, superficial hardening and heart hardening possible.
Hardening Temperature (heart): 850-880 ºC
Hardening Temperature (superficial): 810-840 ºC
Tempering Temperature: 170-210 ºC

Obtainable Hardeness
Approx 45 HRC depending on method used.

Cutting Rate
30 to 50 m/min (approx value, depending on the lubrication oil, the cutting tools, the shape of parts etc)

For all stock and size availability contact Sales.

Return to Main Precision Ground Material

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Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.