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725LN Special Stainless Steel Seamless Pipe 25-22-2 For Urea Chemical Industry
|Equal Grades||S31050, 1.4466, X1CrNiMoN25-22-2, 2RE69, 00Cr25Ni20Mo2N, 25-22-2||Spec||ASTM A213, A312, A959|
|Density||7.9g/cm3||Test Certificate||ASTM A 262, Method C, Method E|
|Forms Of Supply||Forging, Round Bar, Plate, Seamless Pipe||Product Name||Special Stainless Steel|
age hardening steel,
urea grade stainless steel
725LN 25-22-2 Special Stainless Steel Seamless Pipe for Urea Applications
A-ONE ALLOY has rich experience of supplying 725LN Urea Grade stainless steel in forms of forging, round bar, plate, seamless pipe and so on. We provide test certificate per ASTM A262 standard.
Stainless steel grade 725LN is a fully austenitic stainless steel that does not have intermetallic phases such as intergranular carbide precipitations. The 310MoLN steel grade has an optimized chemical composition designed specifically for applications in urea plants. The nitrogen in the chemical composition helps to stabilize and strengthen the austenitic phase. This material provides improved corrosion-resistance in urea carbamate environments such as high-pressure strippers.
Chemical composition of 725LN
|Weight(%)||0.030 max||2.0 max||0.030 max||0.015 max||0.40 max||24.0~26.0||21.0~23.0||2.0~3.0||0.10~0.16|
- UNS S31050
- EN 1.4466
Characters of 725LN
- Excellent resistance to corrosion in ammonium carbamate and nitric acid
- Excellent resistance to intergranular corrosion
- High resistance to pitting and crevice corrosion
- Good weldability
- Urea applications
- Pulp & Paper industry
- Flue gas cleaning
- Chemical industry
- Pharmaceutical industry
Forms of supply
- Round bar
- Hex bar
- Square bar
- Seamless pipe