SS 310MoLN Urea Grade Supplier in Chennai (UNS S31050)
Nobel Weld is an SS 310MoLN urea grade supplier for UNS S31050 / 1.4466 plate, bar, pipe and tube. 310MoLN is the austenitic stainless steel used in urea reactors, strippers, condensers and carbamate piping.
We also supply the matching EN ISO 14343 25 22 2 N L filler wire, and machine and weld 310MoLN parts for fertilizer plant shutdowns.
What is 310MoLN?
SS 310MoLN is a fully austenitic stainless steel with about 25% chromium, 22% nickel, 2% molybdenum, nitrogen and very low carbon. It resists the highly corrosive ammonium carbamate formed in urea synthesis, and is supplied in "urea grade" with extra controls on ferrite and corrosion testing (Huey test).
- Grades
- 310MoLN, UNS S31050, 1.4466
- Forms
- Plate, bar, pipe, tube
- Typical service
- Urea and carbamate service
- Certificates
- EN 10204 3.1; 3.2 and PMI on request
SS 310MoLN (urea grade) grades we supply
| Grade | UNS / designation | Typical use |
|---|---|---|
| SS 310MoLN | S31050 / 1.4466 / 725LN | Urea synthesis, strippers, carbamate condensers |
Forms and standards
- Plate and sheet (ASTM A240 S31050)
- Bar and forgings (ASTM A479, A182)
- Seamless pipe and tube (ASTM A312, A213)
- Filler wire EN ISO 14343 25 22 2 N L
Shutdown support from an SS 310MoLN urea grade supplier
Urea plants need replacement liners, ferrules, nozzles and piping quickly during turnarounds. We supply 310MoLN with the urea-grade test certificates, cut to size, and can machine ferrules and weld spools with the matching filler.
SS 310MoLN (urea grade) chemical composition
| Element | S31050 |
|---|---|
| Cr | 24.0–26.0 |
| Ni | 20.5–23.5 |
| Mo | 1.6–2.6 |
| N | 0.09–0.15 |
| C | 0.025 max |
| Mn | 2.0 max |
SS 310MoLN (urea grade) mechanical properties
| Property | S31050 |
|---|---|
| Tensile strength, MPa | 540 |
| Yield strength (0.2%), MPa | 255 |
| Elongation, % | 25 |
Welding filler wire for ss 310moln (urea grade)
| Alloy family | Standard | Classifications | For base metal |
|---|---|---|---|
| Urea grade | EN ISO 14343 | 25 22 2 N L | 310MoLN (UNS S31050) |
TIG rods and MIG spools with 3.1 certificates per heat. See the full filler wire range.
Where ss 310moln (urea grade) is used
- Urea reactors and HP strippers
- Carbamate condensers and piping
- Ammonia service and fertilizer plant spares
SS 310MoLN (urea grade) parts we machine
Where we deliver
SS 310MoLN (urea grade) for Chennai, Tamil Nadu and India
From Chennai, we serve plants, OEMs and EPC contractors across Tamil Nadu and the rest of India, with EN 10204 3.1 certificates, heat-number traceability and export packing where needed.
- Chennai
- From our shop in Gowrivakkam to plants in Manali, Ennore, Ambattur, Guindy, Sriperumbudur and Oragadam.
- Tamil Nadu
- Coimbatore, Hosur, Tiruchirappalli, Thoothukudi, Cuddalore, Ranipet, Madurai and Mettur.
- India
- Gujarat, Maharashtra, Karnataka, Telangana, Andhra Pradesh and Kerala; export on ex-works, FOB or CIF terms.
FAQ
SS 310MoLN (urea grade): common questions
What does your SS 310MoLN urea grade supply include?
Plate, bar, pipe and tube in UNS S31050 / 1.4466, with urea-grade corrosion test certificates on request, plus 25 22 2 N L filler wire.
Why is 310MoLN used in urea plants?
Its high chromium, nickel and nitrogen and very low carbon resist ammonium carbamate corrosion better than 316L urea grade.
Which filler wire welds SS 310MoLN?
EN ISO 14343 25 22 2 N L, which we supply per heat with certificates.
Send your ss 310moln (urea grade) enquiry
Share the grade, form, size and quantity, or your drawing. You get a technical and commercial reply within 48 hours.