Material 1.7147

Case hardening steel

Cold work and plastic mold steel from the group of
Case-hardening steels according to DIN 20MnCr5.
1.7147 can be machined very well.
This material is used with the aim components
with a wear-resistant surface and a tough core
to manufacture.

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Round and flat steel 1.7147?
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Standards

HDIN / EN	US-Standard	AFNOR	UNI	JIS	request
20MnCr5	AISI 4820 AISI 5120 SAE 5120UNSG48200 UNS SAE5120G48200			SMnC420H SMnC420RCH SMnC420WCH	request

Material Category: Case hardening steel

Applications

Gear and joint parts, gears, crown and bevel gears, shafts, bolts, pins of larger dimensions and similar parts for higher core strength

Heat Treatment

Soft annealing takes place at a temperature of 650 - 700 C°
Tempering takes place at a temperature of 170 - 210 C°
Case hardening takes place at a temperature of 900 - 950 C°
Single hardening takes place at a temperature of 850 - 880 C°

Weldability

1.7147 is usually weldable.

Chemical Composition

C %	Si %	Mn %	P %	S %	Cr %
0,17 - 0,22	max 0,40	1,10 - 1,40	max 0,025	max 0,035	1,00 - 1,30

Product Specifications

DIN EN 10084
DIN EN 10277
DIN EN ISO 683-3

Mechanical Properties

DIN EN 10084	Härte HBW
behandelt auf Härtespanne	170 - 217
behandelt auf Ferrit-Perlit Gefüge und Härtespanne	152 - 201
normalgeglüht	140 - 201
weichgeglüht	max 217

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