36NiCrMo16

Normativa di riferimento UNI EN 10083-3:2006 – corrispondenza DIN W.1.6773
Reference standard UNI EN 10083-3:2006 – DIN number W.1.6773

Dati tecnici dell’acciaio

E’ un acciaio legato al nichel-cromo-molibdeno definito autotemprante, cioè assume una struttura di tempra (martensitica) per semplice raffreddamento all’aria, resistente e resiliente a fatica e torsione. Resiliente in ambiente criogenico. Viene utilizzato per la costruzione di particolari estremamente sollecitati, quali alberi, aste, bielle, steli per magli, colonne presse.

Normalmente fornito allo stato ricotto globulare (HB MAX 269).

Grade technical data

It is a nickel-chromium-molybdenum alloyed steel defined as self-hardening, i.e. it assumes a tempered structure (martensitic) by simply being cooled in air; it is both resistant and resilient to fatigue and torsion. Resilient in a cryogenic environment. It is used for the construction of extremely stressed parts, such as shafts, connecting rods, stems for hammers, press columns.

Normally supplied in the annealed globular state (HB MAX 269).

 

Composizione chimica

Chemical Composition

C% Si% Mn% P% S% Cr% Mo% Ni%
0,32 ÷ 0,39 ≤ 0,40 0,50 ÷ 0,80 ≤ 0,025 ≤ 0,025 1,60 ÷ 2,00 0,25 ÷ 0,45 3,60 ÷ 4,10
± 0,02 + 0,03 ± 0,04 + 0,005 + 0,005 ± 0,05 ± 0,04 ± 0,07

Scostamenti ammessi per analisi di prodotto. Deviations allowed for product analysis.

 

Caratteristiche meccaniche

Mechanical Properties

Laminati a caldo sec / Hot rolled acc. : UNI EN 10083 -3:2006

Caratteristiche meccaniche dopo bonifica QT

Mechanical properties after temper QT

Diametro
Diameter
Spessore

Thickness

Prova di trazione in longitudinale a 20°C

Longitudinal Traction test at 20°C

mm mm R

N/mm2

Rp 0.2

N/mm2

A%

min

C%

Min

Kv

J min

HB per informazione
HB only for info
≤ 16 ≤ 8 1250-1450 1050 9 40 370-415
> 16 ≤ 40 > 8 ≤ 20 1250-1450 1050 9 40 30 370-415
> 40 ≤ 100 > 20 ≤ 60 1100-1300 900 10 45 35 331-380
> 100 ≤ 160 > 60 ≤ 100 1000-1200 800 11 50 45 298-359
> 160 ≤ 250 > 100≤160 1000-1200 800 11 50 45 298-359

 

Temprabilità Jomini , grandezza grano 5 minimo H=normale

Jomini hardenability, grain dimension 5 min – H=normal

Distanza dall’estremità temprata

Distance from quenched end

Durezza Rockwell

Rockwell hardness

Distanza dall’estremità temprata

Distance from quenched end

Durezza Rockwell

Rockwell hardness

mm. HRC min HRC max mm. HRC min HRC max
1,5 50 57 20 47 55
3 49 56 25 47 55
5 48 56 30 47 55
7 48 56 35 47 55
9 48 56 40 47 55
11 48 56 45 47 55
13 47 55 50 47 55
15 47 55

 

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