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Cold-drawn hexagon steel bars
Trafilerie Assi, specializing for more than 40 years in the cold drawing industry, produces cold-drawn hexagon steel bars.
The product range is divided into: 11SMnPb30 and 11SMnPb37 steels not intended for heat treatment, and steels for 36SMnPb14 direct hardening.
Hexagon steel bars table according to UNI EN 10277-1-3:
| Symbolic designation | Diameter range |
| 11SMnPb37+C | 7 – 75mm |
| 11SMnPb30+C | 11 – 70mm |
| 36SMnPb14+C | 7 – 55mm |
| 11SMnPb37+Te+Bi+C | Upon customer request |
| 11SMnPb37CX+C | 5 – 50mm |
Mechanical characteristics:
| Mechanical characteristics of steels for high-speed machining and not intended for heat treatment (UNI EN 10277-3) | ||||||||
| Designation | Thickness (1) | Mechanical characteristics (2) | ||||||
| Cold-drawn (+C) | Rolled+peeled (+SH) | |||||||
| Symbolic | Numerical | mm | Rp0,2 N/mm² min. |
Rm N/mm² |
As % min |
Hardness (2) HB |
Rm N/mm² | |
| 11SMnPb30 | 1.0718 | ≥ 5 ≤ 10 | 440 | 510 – 810 | 6 | |||
| > 10 ≤ 16 | 410 | 490 – 760 | 7 | |||||
| 11SMnPb37 | 1.0737 | > 16 ≤ 40 | 375 | 460 – 710 | 8 | 112 – 169 | 380 – 570 | |
| > 40 ≤ 63 | 305 | 400 – 650 | 9 | 112 – 169 | 370 – 570 | |||
| > 63 ≤ 100 | 245 | 360 – 630 | 9 | 107 - 154 | 360 – 520 | |||
| (1) For <5 mm thicknesses. The mechanical properties can be agreed upon quotation request and order. (2) For information only. |
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| Mechanical properties of steels for high-speed machining and direct hardening | ||||||||
| Designation | Thickness (1) | Mechanical characteristics (2) | ||||||
| Cold-drawn (+C) | Rolled+peeled (+SH) | |||||||
| Symbolic |
Numerical |
mm | Rp0,2 N/mm² min. |
Rm N/mm² |
As % min |
Hardness | Rm N/mm² | |
| 36SMnPb14 | 1.0765 | ≥ 5 ≤ 10 | 500 | 600 – 960 | 6 | |||
| > 10 ≤ 16 | 440 | 620 – 900 | 6 | |||||
| > 16 ≤ 40 | 390 | 600 – 840 | 7 | 166 – 222 | 560 – 750 | |||
| > 40 ≤ 63 | 360 | 580 – 780 | 8 | 166 – 219 | 560 – 740 | |||
| > 63 ≤ 100 | 340 | 560 – 760 | 9 | 163 – 219 | 550 - 740 | |||
| (1) For <5 mm thicknesses. The mechanical properties can be agreed upon quotation request and order. (2) For information only. |
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| CASTING CHEMICAL ANALYSIS OF ACCORDING TO EN 10277-3 | ||||||||
| Designation | Type of steel according to the norm |
Chemical composition, in% by mass | ||||||
| Symbolic |
Numerical |
C | Si Max |
Mn | P max |
S | Pb | |
| Steels not intended for heat treatment | ||||||||
| 11SMnPb37 | 1.0737 | EN 10087.1998 | ≤ 0,14 | 0,05 | ||||
| 11SMnPb30 | 1.0718 | EN 10087.1998 | ≤ 0,14 | 0,05 | 0,90 – 1,30 | 0,11 | 0,27 – 0,33 | 0,20 – 0,35 |
| Steels for direct hardening | ||||||||
| 36SMnPb14 | 1.0765 | EN 10087.1998 | 0,32 – 0,30 | 0,40 | 1,30 – 1,70 | 0,06 | 0,10 – 0,18 | 0,15 – 0,35 |
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Items that are not included in this prospectus should not be intentionally added to steel without the consent of the customer, except for the purpose of refining the cast. The elements such as Te, Bi, etc., may, however, be added by the manufacturer to improve workability, if this has been agreed at the time of offer and order. |
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Formula to calculate the weight of the hexagonal bar
| Weight (Kg x linear meter) = | C2 | x 0,675Kg |
| 100 |
Hexagon bars are always available in stock.
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