Uncompromising quality
Uncompromising quality
Uncompromising quality
Uncompromising quality
Uncompromising quality
Uncompromising quality
16MnCr5 (UNI EN 10084)
PROPERTIES AND EMPLOYEMENTS
IT IS AN EXCELLENT CASE-HARDENING STEEL THAT COMBINES A GOOD TOUGHNESS IN THE NUCLEUS WITH AN ELEVATED HARDNESS OF THE CASE-HARDENED LAYER.
IT CAN SUBSTITUTE STEELS WITH NICKEL-CHROMIUM, IT HAS A MEDIUM-LOW HARDENABILITY, FOR THIS REASON IT CAN GUARANTEE A GOOD RESISTANCE FOR A THICKNESS UP TO MM 20.
MOREOVER, IT HAS A GOOD MACHINABILITY AT THE SOFT-ANNEALED CONDITION.
CORRESPONDENCE TO INTERNATIONAL DESIGNATIONS
| QUALITY | EUROPE | GERMANY | FRANCE | SPAIN | G.B. | USA | |
|---|---|---|---|---|---|---|---|
| EN | DIN | W.n. | AFNOR | UNE | B.S. | AISI/SAE | |
| 16MnCr5 | 16MnCr5 | 16MnCr5 | 1.7131 | 16MC5 | 5155 | ||
CHEMICAL COMPOSITION % (EN 10084)
| STEEL DESIGNATION | CHEMICAL COMPOSITION | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| SYMBOLIC | NUMERIC | C | Si max |
Mn | P max |
S | Cr | Mo | Ni | B |
| 16MnCr5 | 1.7131 | 0,14 ÷ 0,19 | 0,40 | 1,00 ÷ 1,30 | 0,025 | ≤ 0,035 | 0,80 ÷ 1,10 | - | - | - |
| 16MnCrS5 | 1.7139 | 0,020 ÷ 0,040 | ||||||||
CONCENTRATION LIMITS OF THE ELEMENTS THAT ARE NOT INDICATED IN THE TABLE CAN BE DEDUCED IN THE EN 10020 REGULATION.
MECHANICAL CHARACTERISTICS (UNI 7846)
| STEEL QUALITY | BAR'S DIAMETER | TENSILE TESTING | IMPACT STRENGTH KCU min |
||||
|---|---|---|---|---|---|---|---|
| UNIFIED TENSILE STRENGTH R |
DEVIATION FROM PROPORTIONALITY Rp 0,2 min |
ELONGATION A min |
|||||
| mm | N/mm2 | kgf/mm2 | N/mm2 | kgf/mm2 | % | J | |
| 16MnCr5 | 11 (30) (63) |
1030÷1370 (740÷1030) (640÷930) |
105÷140 (75÷105) (65÷95) |
735 (490) (440) |
75 (50) (45) |
8 (9) (10) |
25 (25) (25) |
JOMINY HARDENABILITY (EN 10084)
| STEEL DESIGNATION | RANGE LIMITS | HRC HARDNESS MEASURED FROM THE QUENCHED END OF THE TEST TUBE (MM) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SYMBOLIC | NUMERIC | 1,5 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 20 | 25 | 30 | 35 | 40 | |
|
16MnCr5+H 16MnCrS5+H |
1.7131+H 1.7139+H |
max | 47 | 46 | 44 | 41 | 39 | 37 | 35 | 33 | 31 | 30 | 29 | 28 | 27 |
| min | 39 | 36 | 31 | 28 | 24 | 21 | - | - | - | - | - | - | - | ||
|
16MnCr5+HH 16MnCrS5+HH |
1.7131+HH 1.7139+HH |
max | 47 | 46 | 44 | 41 | 39 | 37 | 35 | 33 | 31 | 30 | 29 | 28 | 27 |
| min | 42 | 39 | 35 | 32 | 29 | 26 | 24 | 22 | 20 | - | - | - | - | ||
|
16MnCr5+HL 16MnCrS5+HL |
1.7131+HL 1.7139+HL |
max | 44 | 43 | 40 | 37 | 34 | 32 | 30 | 28 | 26 | 25 | 24 | 23 | 22 |
| min | 39 | 36 | 31 | 28 | 24 | 21 | - | - | - | - | - | - | - | ||
USUALLY AVAILABLE EX STOCK
| M.T. COLORATION | QUALITY | HEAT TREATMENT | SURFACE | DIAMETER (mm) |
|---|---|---|---|---|
 |
16MnCr5 | Soft-annealed | rolled drawn / peeled h11 |
20-270 18-80 |
 |
16MnCr5 high machinability |
Soft-annealed | rolled peeled |
24-65 22-62 |
 |
Download technical sheet |
Steels
Our steel always comes from the same European steelworks, which guarantee a continuity for what concerns quality. The constant quality of the supplies allows to have repetitive parameters in mechanical processing and a greater control over deformations during heat treatment.
Machining
Precise cuttings of small and big series are guaranteed by the employement of latest generation automatic saws that were projected and realized in order to guarantee precision standards required by customers, reducing processing wastage.
Quality
The certification and introduction of the Quality System management allowed M.T.Acciai to improve not only its efficiency, but also the quality that is offered, in order to better meet our customers’ needs.