Ninthore Overseas is one of the Leading Manufacturer And Exporter Of High Quality Stainless Steel 410 Buttweld Fittings, where a hardening heat treatment is necessary to bring out the maximum hardness and wear resistance. Since these materials absorb heat very slowly, Stainless Steel 410 Elbow Butt Weld Pipe Fittings should be heated gradually and allowed to remain at temperature long enough for to ensure uniform temperature in thick sections. For maximum strength, hardness, and corrosion resistance, slowly heat Stainless Steel 410 Tee Butt Weld Pipe Fittings to 1800 Degree F (982 Degree C) and quench to room temperature in oil.

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Stainless Steel 410 Buttweld Fittings

Stainless Steel 410 Buttweld Fittings

If retained austenite is known to be present after the austenitizing and quench to room temperature, additional hardening response in Stainless Steel 410 Reducer Butt Weld Pipe Fittings may be achieved by sub – zero cooling to about –100 Degree F (-73 Degree C). The as – quenched structure of Stainless Steel 410 Cross is quite brittle and should be stress – relieved or tempered at approximately 400 Degree F to 500 Degree F (204 Degree C to 260 Degree C) to restore some ductility.

During tempering between approximately 300 Degree F (149 Degree C) and 600 Degree F (316 Degree C), a relaxation of the martensitic structure of Stainless Steel 410 Bends occurs whereby the volumetric stresses associated with the formation of martensitic upon quenching are relieved.

Stainless Steel 410 Pipe Fittings Specifications
Specifications : ASTM A403 / ASME SA403
Size : 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated)
: ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Thickness : 5s, 10s, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS available with NACE MR 01-75
Type : Seamless / Welded / Fabricated
SS 410 Pipe Fittings Chemical Composition
Grade C Mn Si P S Cr Mo Ni N
410 min. 11.5
max. 0.15 1.0 1.00 0.040 0.030 13.5 0.75
Stainless Steel 410 Butt weld Fittings Mechanical Properties
Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
410 480 275 16 95 201
Equivalent Grades for 410 Stainless Steel Pipe Fitting
Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
410 S41000 410S21 56A 1.4006 X12Cr13 2302 SUS 410
SS WERKSTOFF NR.1.4006 Buttweld Pipe Fittings Application Industries
  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals
  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry
Stainless Steel 410 Buttweld Fitting Test Certificates

We at Ninthore Overseas provide Manufacturer TC (Test Certificate) in accordance to EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report. We also provide Standard certificates like EN 10204 3.1 and additional requirement like. NACE MR 01075. FERRIT CONTENT as per norms if requested by clients.

• EN 10204/3.1B,
• Raw Materials Certificate
• 100% Radiography Test Report
• Third Party Inspection Report, etc

Material Testing

We at Ninthore Overseas ensure that all our materials go through strict quality tests before dispatching them to our clients.

• Mechanical Testing Such as Tensile of Area
• Hardness Test
• Chemical Analysis – Spectro Analysis
• Positive Material Identification – PMI Testing
• Flattening Test
• Micro and Macro Test
• Pitting Resistance Test
• Flaring Test
• Intergranular Corrosion (IGC) Test


• Commercial Invoice which includes HS Code
• Packing List including net weight and gross weight, number of boxes, Marks and Numbers
• Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
• Fumigation Certificates
• Raw Material Test Reports
• Material Traceability Records
• Quality Assurance Plan (QAP)
• Heat Treatment Charts
• Test Certificates certifying NACE MR0103, NACE MR0175
• Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
• Guarantee Letter
• NABL approved Laboratory Test Reports
• Welding Procedure Specification/Procedure Qualification Record, WPS/PQR
• Form A for the purposes of the Generalized System of Preferences (GSP)



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