Home » Steels » Quenched and tempered steels (EN 10083-3) » 30CrNiMo8 euenched and tempered stress relieved
PROPERTIES AND EMPLOYEMENTS
IT IS A QUENCHED AND TEMPERED STEEL (IDENTICAL TO 30CrNiMo8 REF. UNI 7845 / UNI 7847) WITH HIGH HARDENABILITY AND TOUGHNESS.
IT HAS A GOOD COLD AND WARM MACHINABILITY. IT CAN BE QUENCHED AND TEMPERED WITH HIGH VALUES OF RESISTANCE AND TOUGHNESS ON BIG SECTIONS WHERE IT IS REQUIRED A REMARKABLE HARDNESS UNIFORMITY.
IT CAN BE NITRITED TO IMPROVE ITS RESISTANCE AND FATIGUE STRENGTH.
IT IS COMMONLY USED FOR THE REALIZATION OF PINIONS AND TURBINE SHAFTS.
CORRESPONDENCE TO INTERNATIONAL DESIGNATIONS
QUALITY | EUROPE | GERMANY | FRANCE | SPAIN | G.B. | USA | |
---|---|---|---|---|---|---|---|
EN | DIN | W.n. | AFNOR | UNE | B.S. | AISI/SAE | |
30CrNiMo8 | 30CrNiMo8 | 30CrNiMo8 | 1,6580 | 822M30 |
CHEMICAL COMPOSITION % (EN 10083-3)
STEEL DESIGNATION | CHEMICAL COMPOSITION | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
SYMBOLIC | NUMERIC | C |
Si max |
Mn |
P max |
S max |
Cr | Mo | Ni | V |
30CrNiMo8 | 1,6580 | 0,26 ÷ 0,34 | 0,40 | 0,50 ÷ 0,80 | 0,025 | 0,035 | 1,80 ÷ 2,20 | 0,30 ÷ 0,50 | 1,80 ÷ 2,20 | - |
CONCENTRATION LIMITS OF THE ELEMENTS THAT ARE NOT INDICATED IN THE TABLE CAN BE DEDUCED IN THE EN 10020 REGULATION.
MECHANICAL CHARACTERISTICS (EN 10083-3)
STEEL | MECHANICAL CHARACTERISTICS FOR THE REDUCED SECTION (EN 10083-1:2006, ATTACHMENT A) WITH A DIAMETER (D) OF | |||||||||||||||||||||||||
d ≤ 16mm | 16mm < d ≤ 40mm | 40mm < d ≤ 100mm | 100mm < d ≤ 160mm | 160mm < d ≤ 250mm | ||||||||||||||||||||||
SYMBOLIC | NUMERIC | Re min | Rm | A min | Z min | KVb min | Re min | Rm | A min | Z min | KVb min | Re min | Rm | A min | Z min | KVb min | Re min | Rm | A min | Z min | KVb min | Re min | Rm | A min | Z min | KVb min |
N/mm2 | % | % | J | N/mm2 | % | % | J | N/mm2 | % | % | J | N/mm2 | % | % | J | N/mm2 | % | % | J | |||||||
30CrNiMo8 | 1,6580 | 1050 |
1250 to 1450 |
9 | 40 | - | 1050 |
1250 to 1450 |
9 | 40 | 30 | 900 |
1000 to 1300 |
10 | 45 | 35 | 800 |
1000 to 1200 |
11 | 50 | 45 | 700 |
900 to 1100 |
12 | 50 | 45 |
JOMINY HARDENABILITY (EN 10083-3)
STEEL DESIGNATION | SYMBOL | 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 | 45 | 50 | ||
30CrNiMo8 | 1,6580 | +H | max | 56 | 56 | 56 | 56 | 55 | 55 | 55 | 55 | 55 | 54 | 54 | 54 | 54 | 54 | 54 |
min | 48 | 48 | 48 | 48 | 47 | 47 | 47 | 46 | 46 | 45 | 45 | 44 | 44 | 43 | 43 |
USUALLY AVAILABLE EX STOCK
M.T. COLORATION | QUALITY | HEAT TREATMENT | SURFACE | DIAMETER (mm) |
---|---|---|---|---|
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30CrNiMo8 |
Quenched and tempered Quenched and tempered stress relieved |
rolled reeled | 80-200 |
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Download technical sheet |