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Grade X2CrNiMoCuN25-6-3
1.4507
Corresponding Standard NF EN 10028-7-2000
Flat products made of steels for pressure purposes Part 7: Stainless steels
Classification Duplex Stainless Steel
X2CrNiMoCuN25-6-3 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo N
Minimum Value - - - - - 24 5.5 1 2.7 0.15
Maximum Value 0.03 0.7 2 0.035 0.015 26 7.5 2.5 4 0.3
◎ 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.
X2CrNiMoCuN25-6-3 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Impact Energy Absorption
KV2
J
C：T ≤ 6 +AT 690~940 T＜300 mm：
（l: ≥495）
T ≥ 300 mm：
（t: ≥510）
①		 T ＜ 3mm: ≥20
T ≥ 3mm: ≥ 20
②③		 20℃：
(l: ≥100；t: ≥60)
-40℃：
(t: ≥40)
H：T ≤ 12 +AT 690~940 T＜300 mm：
（l: ≥475）
T ≥ 300 mm：
（t: ≥490）
①		 T ＜ 3mm: ≥20
T ≥ 3mm: ≥ 20
②③		 20℃：
(l: ≥100；t: ≥60)
-40℃：
(t: ≥40)
P：T ≤ 75 +AT 690~890 T＜300 mm：
（l: ≥475）
T ≥ 300 mm：
（t: ≥490）
①		 T ＜ 3mm: ≥25
T ≥ 3mm: ≥ 25
②③		 20℃：
(l: ≥100；t: ≥60)
-40℃：
(t: ≥40)
◎ C-Cold rolled strip；H-Hot rolled strip；P-Hot rolled plate；T-Thickness；t-transverse；l-Longitudinal
◎ +A=annealed；+AT=solution annealed；+QT = quenched and tempered；+RA=recrystallizing annealed condition
Approximate Comparison Table
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard
GB ISC CNS JIS KS ASTM/AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade
03Cr25Ni6Mo3Cu2N S25554 329J4L SUS 329J4L STS 329J4L 255 S32550 X2CrNiMoCuN 25-6-3 X2CrNiMoCuN 25-6-3 1.4507 X2CrNiMoCuN 25-6-3 X2CrNiMoCuN 25-6-3 1.4507
X2CrNiMoCuN25-6-3 Corresponding Standards(Same grade name, different standards)
1 EN 10088-1-2005
X2CrNiMoCuN 25-6-3 1.4507
2 EN 10253-4-2003
X2CrNiMoCuN25-6-3 1.4507
3 EN 10250-4-1999
X2CrNiMoCuN 25-6-3 1.4507
4 ISO TS 15510-2003
X2CrNiMoCuN25-6-3
5 EN 10088-3-2005
X2CrNiMoCuN25-6-3 1.4507
6 EN 10088-3-2014
X2CrNiMoCuN25-6-3 1.4507
7 ISO 15510-2014
X2CrNiMoCuN25-6-3 4507-325-20-I
8 ISO 9328-7-2018
X2CrNiMoCuN25-6-3
9 DIN EN 10088-3-2014
X2CrNiMoCuN25-6-3 1.4507
10 NF EN 10088-2-2005
X2CrNiMoCuN25-6-3 1.4507
11 NF EN 10088-1-2005
X2CrNiMoCuN25-6-3 1.4507
12 NF EN 10028-7-2008
X2CrNiMoCuN25-6-3 1.4507
13 NF EN 10028-7-2000
X2CrNiMoCuN25-6-3 1.4507
14 EN 10272-2016
X2CrNiMoCuN25-6-3 1.4507

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