X12Ni5 1.5680 - EN 10216-4-2013

Grade	X12Ni5
European Standard Steel Grade	1.5680
Corresponding Standard	EN 10216-4-2013 Seamless Steel Tubes For Pressure Purpose - Technical Delivery Condition - Part 4: Non-Alloy and Alloy Steel Tubes with Specified Low Temperature Properties
Classification	Carbon Steel

X12Ni5 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Ni	Cu	V
Minimum Value	-	-	0.3	-	-	4.5	-	-
Maximum Value	0.15	0.35	0.8	0.02	0.005	5.3	0.3	0.05

X12Ni5 Mechanical Properties

wall thickness T mm	Test Temperature	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
T≤40	Room Temperature	510~710	ReH or Rp0.2 ≥390	l: ≥21 t: ≥19	l: ≥70 t: ≥50
/					T≤25 l: ≥70 t: ≥50 25＜T≤40 l: ≥65 t: ≥45
/					T≤25 l: ≥65 t: ≥45 25＜T≤40 l: ≥65 t: ≥45
/					T≤25 l: ≥65 t: ≥45 25＜T≤40 l: ≥65 t: ≥45
/					T≤25 l: ≥65 t: ≥45 25＜T≤45 l: ≥60 t: ≥40
/					T≤25 l: ≥55 t: ≥35 25＜T≤45 l: ≥50 t: ≥30
/					T≤25 l: ≥50 t: ≥30 25＜T≤45 l: ≥45 t: ≥30
/					T≤25 l: ≥45 t: ≥30 25＜T≤45 l: ≥40 t: ≥27
/					T≤25 l: ≥40 t: ≥27

• l=longitudinal；t=transverse

Approximate Comparison Table Pressure-Bearing Flat Steel

China	Japan	International Organization for Standardization	European Standard
GB	JIS	ISO	EN
07Ni5DR GB/T 713.4-2023	SL5N590 JIS G 3127-2021	X12Ni5 ISO 9328-4-2018	X12Ni5 EN 10028-4-2017

X12Ni5 Corresponding Standards(Same grade name, different standards)

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