CORRESPONDENCE TO INTERNATIONAL DESIGNATIONS
QUALITY | EUROPE | GERMANY | FRANCE | SPAIN | G.B. | USA | |
---|---|---|---|---|---|---|---|
EN | DIN | W.n. | AFNOR | UNE | B.S. | AISI/SAE | |
4140 | 1,7225 | 708M40 | 4140 |
CHEMICAL ANALYSIS %
STEEL DESIGNATION | CHEMICAL ANALYSIS | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
SYMBOLIC | NUMERIC | C | Mn | Si |
P max |
S max |
Cr | Mo | Ni | V |
AISI 4140 | 1,7225 | 0,38 ÷ 0,43 | 0,75 ÷ 1,00 | 0,15 ÷ 0,35 | 0,035 | 0,040 | 0,80 ÷ 1,10 | 0,15 ÷ 0,25 | - | - |
CONCENTRATION LIMITS OF THE ELEMENTS THAT ARE NOT INDICATED IN THE TABLE CAN BE DEDUCED IN THE EN 10020 REGULATION.
MECHANICAL CHARACTERISTICS
STEEL | NORMALISATION TEMPERATURE 900°C MIN – TEMPERING TEMPERATURE 620°C MIN | ||||||
SYMBOLIC | NUMERICA | Re min | Rm min | A min | Z min | Durezza HB | KV a -46°C min |
N/mm2 | % | % | max | J | |||
AISI 4140 | 1,7225 | 520 | 677 | 20 | 45 | 237 | 27 |
USUALLY AVAILABLE EX STOCK
M.T. COLORATION | QUALITY | HEAT TREATMENT | SURFACE | DIAMETER (mm) |
---|---|---|---|---|
Aisi 4140 | Quenched and tempered | rolled | 30-300 |
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