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X5CrNiMo17-12-2 (316)

Standard Mo-bearing austenitic stainless 316. Better corrosion resistance than 304. For marine, chemical and pharmaceutical applications.

Nehrđajući čelici Austenitic Stainless Steel ENX5CrNiMo17-12-2 DIN1.4401 AISI/SAE316 ASTMA240 / A276 Type 316 +16
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Opis

X5CrNiMo17-12-2 (EN 1.4401 / AISI 316) per EN 10088. Standard Mo-bearing grade with C<=0.07% — slightly higher than 316L. Higher strength than 316L (Rp0.2 220 MPa vs 170 MPa) makes it preferred for machined components in bar and tube form where welding without PWHT is not required.

Ključna svojstva — Solution Annealed
Rm (Tensile Strength)
515 – 690
MPa
Re / Rp0.2 (Yield)
220 – 320
MPa
A₅ (Elongation)
≥ 40.0
%
Hardness
— – 215
HB
E (Young's Modulus)
193
GPa
Gustoća
7.98
g/cm³
Glavne oznake (20)
Standardno tijeloOznakaZemlja / RegionNapomena
EN X5CrNiMo17-12-2 European Union
DIN 1.4401 Germany
AISI/SAE 316 USA
ASTM A240 / A276 Type 316 USA
BS EN 316S31 UK
JIS SUS316 Japan
GOST 08H17N13M2 (08Kh17N13M2) Russia / CIS
UNI X5CrNiMo17-12-2 Italy
NF Z6CND17-11-02 France
SS 2347 Sweden
PN 0H17N12M2 Poland
CSN 17346 Czech Republic
UNS S31600 USA (UNS)
GB 06Cr17Ni12Mo2 China
JUS C.4584 Yugoslavia / Serbia Mo-bearing austenitic stainless steel; JUS C.B2.040
ISO X5CrNiMo17-12-2 International
EN X5CrNiMo17-12-2 / 1.4401 EU
DIN W.Nr 1.4401 Germany
GOST 10H17N13M2 Russia
JUS C.4571 Yugoslavia/BiH Cr-Ni-Mo nehrdjajuci 316; JUS C.B2.040
Standardi (20)
#Standardno tijeloOznakaZemlja / RegionNapomena
1 EN X5CrNiMo17-12-2 European Union —
2 DIN 1.4401 Germany —
3 AISI/SAE 316 USA —
4 ASTM A240 / A276 Type 316 USA —
5 BS EN 316S31 UK —
6 JIS SUS316 Japan —
7 GOST 08H17N13M2 (08Kh17N13M2) Russia / CIS —
8 UNI X5CrNiMo17-12-2 Italy —
9 NF Z6CND17-11-02 France —
10 SS 2347 Sweden —
11 PN 0H17N12M2 Poland —
12 CSN 17346 Czech Republic —
13 UNS S31600 USA (UNS) —
14 GB 06Cr17Ni12Mo2 China —
15 JUS C.4584 Yugoslavia / Serbia Mo-bearing austenitic stainless steel; JUS C.B2.040
16 ISO X5CrNiMo17-12-2 International —
17 EN X5CrNiMo17-12-2 / 1.4401 EU —
18 DIN W.Nr 1.4401 Germany —
19 GOST 10H17N13M2 Russia —
20 JUS C.4571 Yugoslavia/BiH Cr-Ni-Mo nehrdjajuci 316; JUS C.B2.040
Sve vrijednosti u masenim %
C
Carbon
≤ 0.0700
Si
Silicon
≤ 1.0000
Mn
Manganese
≤ 2.0000
Cr
Chromium
16.5000 – 18.5000
Ni
Nickel
10.0000 – 13.0000
Mo
Molybdenum
2.0000 – 2.5000
N
Nitrogen
≤ 0.1100
ElementSimbolMin %Max %Tipično %
Carbon C — 0.0700 0.0400
Silicon Si — 1.0000 0.5000
Manganese Mn — 2.0000 1.2000
Chromium Cr 16.5000 18.5000 17.2000
Nickel Ni 10.0000 13.0000 11.5000
Molybdenum Mo 2.0000 2.5000 2.2000
Nitrogen N — 0.1100 0.0500
Mehanička svojstva
StanjeŠifra Rm min
MPa		Rm max
MPa		 Re min
MPa		Re max
MPa		 A₅ min
%		 Z
%		 KV
J		 HB minHB max HRC minHRC max E
GPa
Solution Annealed +AT 515 690 220 320 40.0 — — — 215 — — 193.0
Fizikalna svojstva
Gustoća
7.980
g/cm³
Tačka topljenja
1370–1400
°C
Youngov modul
193.0
GPa
Poissonov koeficijent
0.290
—
Topl. provodljivost
16.3
W/m·K
Topl. rastezanje
16.50
×10⁻⁶ /K
Specifična toplota
500
J/kg·K
El. otpornost
0.7500
µΩ·m
Magnetno
Ne
 
Toplinska obrada
Solution Annealing
Temperatura:1010°C – 1120°C
Medium:Water quench
Trajanje:Sufficient
Hlađenje:Rapid quench
Tvrdoća nakon:<=HB 215
For machined bar and tube.
Obradivost
Indeks obradivosti
relativno prema AISI B1112 = 100%
42.0%
Teško
Brzina tokarenja (HSS)
17
m/min
Brzina tokarenja (karbid)
88
m/min
Posmak (tokarenje)
0.110
mm/rev
Brzina bušenja (HSS)
10
m/min
Brzina glodanja (karbid)
92
m/min
Rashladni fluidHigh-pressure flood coolant mandatory
Oblici strugotineLong stringy chips; work-hardening severe
Rezni alatTiAlN carbide; sharp positive rake
Površinska hrapavostRa 0.4-1.6 um
Identical to 316L machining. Slightly higher strength means slightly higher cutting forces.
Primjena
Chemical Process
Machined valve bodies, pump shafts, fittings and flanges for chemical service.
Marine
Machined shaft couplings, propeller shafts and marine hardware.
Medical
Non-implant surgical instruments and equipment housings.
Marine
General marine fittings and deck hardware.
Food & Pharma
Process tanks, piping and CIP systems.
Chemical
General chemical plant piping and vessels.
Architecture
Coastal architectural fixtures and outdoor fittings.
Tehničke napomene
✅
316 vs 316L
Specify 316 (not 316L) for machined bar and tube components NOT involving welding — slightly higher strength. For welded fabrications: ALWAYS use 316L.
💧
Pitting Resistance
PRE approx 25. Significantly better than 304 (PRE approx 18) in chloride environments.
✅
316 vs 304
316: Mo gives PRE~24 vs 304 PRE~18 -- roughly 2x better chloride resistance. Use 316 for any chloride exposure; 304 for dry indoor environments.
✅
316 vs 316L
316L: low C (<=0.03%), immune to weld sensitisation. For welded sections t>6 mm: specify 316L. For unwelded machined parts: 316 is fine and slightly stronger.