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35S20 - Nr.1.0726

Steel with low carbon content and with the addition of sulfur for improved machinability.

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°      
35S20 1.0726 - 35S20 1.0726 - - -

Chemical Composition (Cast Analysis) (%)

C Si / max Mn P / max S
0,32÷0,39 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≤10 210* 550÷720* 430 630÷780* 15*
10<d≤16 204* 550÷700* 430 630÷780* 15*
16<d≤40 198 520÷680 380 600÷750 16
40<d≤63 196 520÷670 320 550÷700 17
63<d≤100 190 500÷650 320 550÷700 17

*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≤10 480 640÷880 6 450 560÷840 6 490 700÷900 9
10<d≤16 400 590÷830 7 430 500÷800 7 490 700÷900 11
16<d≤40 360 560÷800 8 390 470÷770 8 455 650÷850 12
40<d≤63 340 530÷760 9 350 460÷680 9 400 570÷770 13
63<d≤100 300 510÷680 9 265 440÷640 10 385 570÷750 14


* 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  870÷900
Soft annealing   670÷700
Quenching in oil or water 860÷890
Tempering 540÷680
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