Ninthore Overseas Is One Of The Leading Manufacturer And Exporter Of High Quality Stainless Steel 347 Nipple, in which silver brazing compounds are known to cause stress cracking in nickel – based alloys. Rupture and creep properties of SS 347 Hexagon Reducing Nipple shown in this bulletin are typical of material receiving this low – temperature treatment. Slow response of Stainless Steel 347 Hexagon Nipple to age hardening enables parts to be welded and directly age – hardened without an intermediate stress relief. If Stainless Steel 347 One End Threaded Nipple is cold – worked and / or precipitation – hardened, silver brazing compounds should not be used.

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Stainless Steel 347 Nipple

Stainless Steel 347 Nipple

Also, SS 347 Both End Threaded Nipple containing cadmium are best avoided; while cadmium has not been shown to cause cracking by itself, it can aggravate cracking from other sources. Room – temperature properties of welds in Stainless Steel 347 Concentric Swaged Nipple receiving the low temperature anneal and / or age can be compared with results of the high – temperature anneals and / or age.

Additional properties of welds in Stainless Steel 347 Eccentric Swaged Nipple is annealed at 1950 Degree and aged at 1400 Degree F to 1200 Degree F, hold at 1200 Degree F for a total aging time of 20 hours. Welding was by the manual gas tungsten-arc process, using 347 Stainless Steel Nipple, where these welds were found satisfactory in bend tests and radiographic examination.

Stainless Steel 347 Nipple
Specifications : ASTM A182 & ASME SA182
Size : 1/4″ to 4″
Class : 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS
SS 347 Nipple Chemical Composition
Grade C Mn Si P S Cr Mo Ni N
347 min. 17.0 9.0
max. 0.08 2.0 1.0 0.040 0.030 20.0 13.0
Stainless Steel 347 Nipple 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
347 515 205 40 92 201
Equivalent Grades for 347 Stainless Steel Nipple


SS 347 1.4550 S34700 SUS 347 08Ch18N12B X6CrNiNb18-10
Stainless Steel 347 Nipple 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
SS 347 Nipple 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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