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Grade X4CrNi18-12
Germany W-Nr. 1.4303
Corresponding Standard DIN EN 10088-3-2014
Stainless steels – Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
Classification Austenitic Stainless Steel
Properties Corrosion Resistance
X4CrNi18-12 Chemical Element Composition Content (%)
Component C Si Mn P S ⓑ Cr Ni N
Minimum Value - - - - - 17 11 -
Maximum Value 0.06 1 2 0.045 0.03 19 13 0.1
① Elements not quoted in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All precautions are to be taken to avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.
X4CrNi18-12 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW 		Impact Energy Absorption
KV2
J
Bar, rod, wire, section, bright products; d≤160 +AT 500~700 ≥190 (long.)
≥45		 ≤215 (long.)
≥100
Bar, rod, wire, section, bright products; 160<d≤250 +AT 500~700 ≥190 (tr.)
≥35		 ≤215 (tr.)
≥60
Cold drawn wire; d≥0.05 +C500 500~700
Cold drawn wire; d≥0.05 +C600 600~800
Cold drawn wire; d≥0.05 +C700 700~900
Cold drawn wire; d≥0.05 +C800 800~1000
Cold drawn wire; d≥0.05 +C900 900~1100
Cold drawn wire; d≥0.05 +C1000 1000~1250
Cold drawn wire; d≥0.05 +C1100 1100~1350
Cold drawn wire; d≥0.05 +C1200 1200~1450
Cold drawn wire; d≥0.05 +C1400 1400~1700
Cold drawn wire; d≥0.05 +C1600 1600~1900
Cold drawn wire; d≥0.05 +C1800 1800~2100
Cold drawn wire; 0.05<d≤0.1 +AT ≤1100 (long.)
≥20
Cold drawn wire; 0.1<d≤0.2 +AT ≤1050 ≥20
Cold drawn wire; 0.2<d≤0.5 +AT ≤1000 ≥30
Cold drawn wire; 0.5<d≤1 +AT ≤950 ≥30
Cold drawn wire; 1<d≤3 +AT ≤900 ≥30
Cold drawn wire; 3<d≤5 +AT ≤850 ≥35
Cold-drawn wire; 5<d≤16 +AT ≤800 ≥35
+AT=solution annealed；+A=annealed；+QT = quenched and tempered；+P=precipitation hardening；+C=Cold worked，+Csuffix followed by a number represents the tensile strength grade, i.e., the minimum tensile strength value.
long.=longitudinal；tr.=transverse
d=diameter or thickness；Unit mm
New and Old Grade Replacement List
Corresponding Standard Grade
DIN 17440-1972
Grade
Germany W-Nr.
Other Name
Other Name
DIN EN 10088-3-2014
Grade
Germany W-Nr.
Approximate Comparison Table
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia United Kingdom
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST BS EN/BS
10Cr18Ni12 S30510 305 SUS 305 STS 305 305 S30500 X6CrNi 18-12 X5CrNi 18-12
(X5CrNi 19-11)
X4CrNi 18-12 		1.4303
1.4303 		Z8CN 18-12 X4CrNi 18-12 1.4303 12Х18Н12Т 305S19
X4CrNi18-12 Corresponding Standards(Same grade name, different standards)
1 EN 10088-1-2005
X4CrNi 18-12 1.4303
2 EN 10263-5-2001
X4CrNi18-12 1.4303
3 EN 10269-2006
X4CrNi18-12 1.4303
4 EN 10088-3-2005
X4CrNi18-12 1.4303
5 EN 10269-2013
X4CrNi 18-12 1.4303
6 EN 10088-3-2014
X4CrNi18-12 1.4303
7 NF EN 10269-1999
X4CrNi18-12 1.4303
8 VDI 2230-1-2015
X4CrNi 18-12 1.4303
9 DIN EN 10263-5-2018
X4CrNi18-12 1.4303
10 DIN EN 10269-2014
X4CrNi 18-12 1.4303
11 DIN EN 10088-3-2014
X4CrNi18-12 1.4303
12 NF EN 10088-2-2005
X4CrNi18-12 1.4303
13 NF EN 10088-1-2005
X4CrNi18-12 1.4303
14 EN 10263-5-2017
X4CrNi18-12 1.4303

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