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(11SMnPb37+Te+Bi) (Nr.1.0737)

Steel similar to the previous one, but with a higher sulfur content; reaches the maximum levels of machinability, combining all of the advantages tied to productivity in a single product.

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   Werkstoff      
(11SMnPb37+Te+Bi) (1.0737 (CF9SMnPb36+Te+Bi) (9SMnPb36+Te+Bi) (1.0737) S 300 Pb+Te+Bi - (12L14+Te+Bi)

Chemical Composition (Cast Analysis) (%)

C / max Si / max Mn P / max S Pb Te Bi
0,14 0,05 1,00÷1,50 0,11 0,34÷0,40 0,20÷0,35 0,01÷0,05 0,05÷0,09

Mechanical Properties – Bright Steel

Size (mm) as Rolled and/or as Rolled + Turned (+SH) Cold Drawn (+C)
Hardness HB max Rm (MPa) Rp0,2 (MPa) min Rm (MPa) A5 (%) min
5≤d≤10 - - 440 510÷810 6
10<d≤16 - - 410 490÷760 7
16<d≤40 169 380÷570 375 460÷710 8
40<d≤63 169 370÷570 305 400÷650 9
63<d≤100 154 360÷520 245 360÷630 9

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÷1250
Normalizing  870÷910
Soft annealing   650÷700
Relevant Products