44LN S31200 - ISO 15156(3)-2003

Grade	44LN
ISO Numeric Designation	S31200
Corresponding Standard	ISO 15156(3)-2003 Petroleum and Natural Gas Industries — Materials for Use in H2S-Containing Environments in Oil and Gas Production — Part 3: Cracking-Resistant Cras (Corrosion-Resistant Alloys) and Other Alloys
Classification	Duplex Stainless Steel
Properties	Corrosion Resistance
Density	7.8 g/cm³

44LN Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	N	More
Minimum Value	-	-	-	-	-	24	5.5	1.2	0.14	FPREN:30~36
Maximum Value	0.03	1	2	0.045	0.03	26	6.5	2	0.2	FPREN:30~36

• F<sub>PREN</sub>=Pitting Resistance Equivalent Number

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