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46S20 - Nr.1.0727

Steel with the addition of sulfur only; the higher carbon content gives this quenched and tempered steel greater mechanical characteristics.

References and Comparable Standards

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°      
46S20 1.0727 - 45S20 1.0727 - - -

Chemical Composition (Cast Analysis) (%)

C Si / max Mn P / max S
0,42÷0,50 0,40 0,70÷1,10 0,060 0,15÷0,25

Mechanical Properties - As Rolled Condition

Size
(mm)		 as Rolled and/or as Rolled + Turned (+SH) as Rolled and/or as Rolled + Turned + Quenched + Tempered (+SH +QT)
Hardness HB max Rm (MPa) Rp0,2 (MPa) min Rm (MPa) A5 (%) min
5≤d≤10 234* 590÷800* 490 700÷850* 12*
10<d≤16 228* 590÷780* 490 700÷850* 12*
16<d≤40 222 590÷760 430 650÷800 13
40<d≤63 213 580÷730 370 630÷780 14
63<d≤100 207 560÷710 370 630÷780 14

*Values valid only for hot rolled products
For size <5 mm the mechanical properties may be agreed at the time of enquiry and order

Mechanical Properties – Bright Steel

Size
(mm)		 Cold Drawn (+C) Quenched + Tempered + Peeled (+QT +SH)* Quenched + Tempered + Cold Drawn (+QT +C)
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≤10 570 740÷980 5 - - - 595 850÷1000 8
10<d≤16 470 690÷930 6 - - - 560 800÷950 9
16<d≤40 400 640÷880 7 430 650÷800 13 490 700÷850 10
40<d≤63 380 610÷850 8 370 630÷780 14 490 700÷850 11
63<d≤100 340 580÷820 8 370 630÷780 14 455 650÷850 11


*This values are valid also for Cold Drawn - Quenched + Tempered Condition (+C +QT)
For size <5 mm the mechanical properties may be agreed at the time of enquiry and order

Working Temperatures Recommended

Operation °C
Hot forgings deformation 950÷1200
Normalizing  850÷880
Soft annealing   650÷700
Quenching in oil or water 840÷870
Tempering 540÷680
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