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Grade X5CrNiCuNb 16-4
Germany W-Nr. 1.4542
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 Precipitation-Hardening Stainless Steel
Properties Corrosion Resistance
X5CrNiCuNb 16-4 Chemical Element Composition Content (%)
Component C Si Mn P S ⓑ Cr Ni Cu Mo More
Minimum Value - - - - - 15 3 3 - Nb:5C~0.45
Maximum Value 0.07 0.7 1.5 0.04 0.03 17 5 5 0.6
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.
X5CrNiCuNb 16-4 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
Bars, rods, wires, profiles, bright products; d≤100 +AT ≤1200 ≤360
Bars, rods, wires, profiles, bright products; d≤100 +P800 800~950 ≥520 (long.)
≥18		 (long.)
≥75
Bars, rods, wires, profiles, bright products; d≤100 +P930 930~1100 ≥720 ≥16 ≥40
Bars, rods, wires, profiles, bright products; d≤100 +P960 960~1160 ≥790 ≥12
Bars, rods, wires, profiles, bright products; d≤100 +P1070 1070~1270 ≥1000 ≥10
Cold drawn, precision bar; d≤10 +P800 900~1100 ≥600 ≥10
Cold drawn, precision bar; 10<d≤16 +P800 900~1100 ≥600 ≥10
Cold drawn, precision bar; 16<d≤40 +P800 800~1050 ≥520 ≥12 ≥75
Cold drawn, precision bar; 40<d≤63 +P800 800~1000 ≥520 ≥18 ≥75
Cold drawn, precision bar; 63<d≤160 +P800 800~950 ≥520 ≥18 ≥75
Cold drawn, precision-finished bar stock; d≤100 +P930 930~1100 ≥720 ≥12 ≥40
Cold drawn, precision-finished bar stock; d≤100 +P960 960~1160 ≥790 ≥10
Cold drawn, precision-finished bar stock; d≤100 +P1070 1070~1270 ≥1000 ≥10
Cold drawn, precision bar; d≤10 +A ≤1200 ≤360
Cold drawn, precision bar; 10<d≤16 +A ≤1200 ≤360
Cold drawn, precision bar; 16<d≤40 +A ≤1200 ≤360
Cold drawn, precision bar; 40<d≤63 +A ≤1200 ≤360
Cold drawn, precision bar; 63<d≤160 +A ≤1200 ≤360
+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
1 Approximate Comparison Table Precipitation Hardening Stainless Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard
GB ISC CNS JIS KS ASTM UNS ISO Numerical Grade DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade
05Cr17Ni4Cu4Nb
(0Cr17Ni4Cu4Nb) 		S51740 630 SUS 630 STS 630 630 S17400 X5CrNiCuNb 16-4
1
(ISO 683-13-1986) 		4542-174-00-I X5CrNiCuNb 17-4 1.4542 Z6CNU 17-04 X5CrNiCuNb 16-4 1.4542
2 Approximate Comparison Table Precipitation Hardening Heat-Resistant Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade
05Cr17Ni4Cu4Nb
(0Cr17Ni4Cu4Nb) 		S51740 630 SUS 630 STS 630 630 S17400 X5CrNiCuNb 16-4 X5CrNiCuNb 17-4 1.4542 Z6CNU 17-04 X5CrNiCuNb 16-4 1.4542
X5CrNiCuNb16-4 Corresponding Standards(Same grade name, different standards)
1 EN 10088-1-2005
X5CrNiCuNb 16-4 1.4542
2 EN 10250-4-1999
X5CrNiCuNb 16-4 1.4542
3 ISO TS 15510-2003
X5CrNiCuNb16-4
4 EN 10088-3-2005
X5CrNiCuNb 16-4 1.4542
5 EN 10088-3-2014
X5CrNiCuNb 16-4 1.4542
6 ISO 15510-2014
X5CrNiCuNb16-4 4542-174-00-I
7 DIN EN 10088-3-2014
X5CrNiCuNb 16-4 1.4542
8 ISO 683-18-2014
X5CrNiCuNb16-4 4542-174-00-1
9 NF EN 10088-2-2005
X5CrNiCuNb16-4 1.4542
10 NF EN 10088-1-2005
X5CrNiCuNb16-4 1.4542

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