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Material Number	Material Name	Material Number (single)	Standard	Scope	Standard Status	Country	Successor	VDA 231-106 classification
1.8509 (DIN EN 10085 : 2001-07)	41CrAlMo7-10	1.8509	DIN EN 10085 : 2001-07	DIN EN 10085 : 2001-07 replaced by DIN EN ISO 683-5 : 2021-08	Replaced	Germany	41CrAlMo7-10	1.1.1	1)
1) Remark: The heat-treatable nitriding steel 41CrAlMo7-10 is applicated for hot steam fitting components of high fatigue limit. For application under highest surface loadings: dimension up to 100 mm

Al [%]	C [%]	Cr [%]	Mn [%]	Mo [%]	P [%]	S [%]	Si [%]	Remainder
blur	blur	blur	blur	blur	blur	blur	blur	blur	1)
1) Source: blur

REACh	RoHS
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Semi-finished Product	Condition	Nominal Size [mm]	Temperature [°C]	Tensile Strength [MPa]	Yield Strength [MPa]	Elongation A [%]	Hardness HB \| HBW	Hardness HV
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blur	blur	blur	blur	blur	blur	blur	blur	blur	1)
blur	blur	blur	blur	blur	blur	blur	blur	blur	1)2)
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1) Source: blur
2) Remark: blur

Semi-finished Product	Condition	Nominal Size [mm]	Temperature [°C]	Specimen Shape	Specimen Direction	Notch Impact Energy [J]
blur	blur	blur	blur	blur	blur	blur	1)
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1) Source: blur

Semi-finished Product	Condition	Nominal Size [mm]	Tensile Strength [MPa]	Yield Strength [MPa]	Fatigue Limit under rev. Tension-Compression Stresses [MPa]	Fatigue Strength under pulsating Tensile Stresses [MPa]	Bending Fatigue Strength [MPa]	Shear Fatigue Strength [MPa]	Torsion Fatigue Strength [MPa]	Constant a for size factor Kd for yield stress Rp	Constant a for size factor Kd for tensile strength Rm
blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	1)2)
1) Source: blur
2) Remark: blur

Heat Treatment	Step	Temperature [°C]	Holding Time [h]	Medium
blur	blur	blur	blur	blur	1)
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1) Source: blur
2) Remark: blur

Material Name	Country	Standard
38CrMoAl	China	GB/T 3077	1)
A33382	China	GB/T 3077	1)
38CrMoAlA	China	GB/T 3078	1)
A33383	China	GB/T 3078	1)
38CrMoAlA	China	GB/T 3079	1)
A33383	China	GB/T 3079	1)
41CrAlMo7-10	Europe	EN 10085
41CrAlMo7-4	International		1)
41CrAlMo7-10	International	ISO 683-5	1)
SACM645	Japan	JIS G 4053	1)
SACM645	South Korea	KS D 3756	1)
38Ch2MJuA	Russia	GOST 4543	1)
38Х2MЮA	Russia	ГОСТ 4543	1)
A355 Grade A	USA	ASTM A355	2)
Nit.135	USA	ASTM A646	2)
K24065	USA	UNS	2)
Nitriding steel 135	USA		2)
41CrAlMo7			1)
1) Source: Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach
2) Source: Metals & Alloys in the Unified Numbering System, SAE/ASTM, 11th Edition, 2008

Tradename	Supplier
1.8509	INOX SERVICE CENTER GmbH, Krefeld
1.8509	INTERSTAHL Service GmbH, Wetter
41 CrAIMo7	Schmiedewerke Gröditz GmbH, Gröditz
41CrAlMo7	Hoesch Hohenlimburg GmbH, Hagen
41CrAlMo7	Georgsmarienhütte GmbH, Georgsmarienhütte
41CrAlMo7	C.D. Wälzholz GmbH & Co. KG, Hagen
41CrAlMo7	Vallourec Deutschland GmbH, Düsseldorf
41CrAlMo7	HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach
41CrAlMo7	Tata Steel, IJmuiden
41CrAlMo7	Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten
41CrAlMo7	Sidenor Deutschland, Düsseldorf
41CrAlMo7	ASCOMETAL GmbH, Erkrath
BGH 8509	BGH Edelstahl Siegen GmbH
BÖHLER V800	voestalpine BÖHLER Edelstahl GmbH & Co.KG, Kapfenberg
DE 8509	Dörrenberg Edelstahl GmbH, Engelskirchen
Edel 1.8509	ET Edelstahl-Trading GmbH, Willich
Klöckner 41CrAlMO7	Klöckner & Co SE, Duisburg
LK 3	AUBERT & DUVAL Deutschland GmbH, München
NITRODUR 41CrAIMo7	Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten
Plate 41CrAlMo7	Platestahl Umformtechnik GmbH, Lüdenscheid

Material Standard Values