Products

44SMnPb28 - Nr.1.0763

Sulfur-Lead Free-Cutting Steel for High Hardness

Steel with the addition of sulfur and lead; the special carbon content allows excellent hardness to be obtained after tempering.

Standard Reference: EN ISO 683-4: 2018 (Hot-rolled products) | EN 10277: 2018 (Bright products)

EUROPE		ITALY	GERMANY		FRANCE	UK	USA
EN 10087: 1998 EN 10277-3: 2008		(UNI 4838-80)	(DIN 1651-88)		(NF A 35-561-92)	(BS 970 pt.3-91)	ASTM A 29
Grade	N°		Werkstoff	N°
44SMnPb28	1.0763	CF44SMnPb28	-	-	45MF6.3+Pb	226M44 Leaded	11L44

C	Si / max	Mn	P / max	S	Pb
0,40÷0,48	0,40	1,30÷1,70	0,060	0,24÷0,33	0,15÷0,35

Size (mm)	as Rolled and/or as Rolled + Turned (+SH)		as Rolled and/or as Rolled + Turned + Quenched + Tempered (+SH +QT)
Size (mm)	Hardness HB max	Rm (MPa)	Rp0,2 (MPa) min	Rm (MPa)	A5 (%) min
5≤d≤10	(266)*	630÷900*	520	700÷850*	16*
10<d≤16	(252)*	630÷850*	480	700÷850*	16*
16<d≤40	241	630÷820	420	700÷850	16
40<d≤63	231	620÷790	410	700÷850	16
63<d≤100	228	610÷780	400	700÷850	16
*Values valid only for hot rolled products. Note: For size <5 mm the mechanical properties may be agreed at the time of enquiry and order.

Size (mm)	Cold Drawn (+C)			Quenched + Tempered + Peeled (+QT +SH)*			Quenched + Tempered + Cold Drawn (+QT +C)
Size (mm)	Rp0,2 (MPa) min	Rm (MPa)	A5 (%) min	Rp0,2 (MPa) min	Rm (MPa)	A5 (%) min	Rp0,2 (MPa) min	Rm (MPa)	A5 (%) min
5≤d≤10	600	760÷1030	5	-	-	-	595	850÷1000	9
10<d≤16	530	710÷980	5	-	-	-	595	850÷1000	9
16<d≤40	460	660÷900	6	420	700÷850	16	490	700÷900	11
40<d≤63	430	650÷870	7	410	700÷850	16	490	700÷900	12
63<d≤100	390	630÷840	7	400	700÷850	16	490	700÷900	12
*This values are valid also for Cold Drawn - Quenched + Tempered Condition (+C +QT). Note: For size <5 mm the mechanical properties may be agreed at the time of enquiry and order.