Ninthore Overseas is one of The Leading Manufacturer And Exporter Of High Quality Alloy Steel P22 Pipes, which is available in made – to – order sizes and shapes for our clients at best prices in market. Materials such as our Alloy Steel P22 Seamless Pipes that have high strength and contain martensitic or ferrite would generally be susceptible to cracking at lower temperatures and chloride levels than they would in the absence of hydrogen sulphide. These Alloy Steel P22 Welded Pipes may compare favorably with some lower – strength austenitic stainless steels, depending on the chloride concentrations and temperature.

Alloy Steel P22 Pipes

Alloy Steel P22 Pipes

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Our Alloy Steel P22 EFW Pipes is annealed at 1020 Degree C – 1070 Degree C (1868 Degree F – 1958 Degree F) and then water quenched. These Alloy Steel P22 ERW Pipes is also hot worked in the temperature range of 954 Degree C – 1149 Degree C (1750 Degree F – 2100 Degree F). Hot working of our Alloy Steel P22 Round Pipes under room temperature is recommended whenever possible. Welding methods recommended for these Alloy Steel P22 Square Pipes include SMAW, MIG, TIG and manual covered electrode methods.

During the welding process, our Alloy Steel P22 Rectangular Pipes should be cooled below 149 Degree C (300 Degree F) between passes and preheating of the weld piece should be avoided. These Alloy Steel P22 Electropolish Pipes can readily be used down to at least -50 Degree C, where tooling and work surfaces must be thoroughly cleaned before use.

Alloy Steel P22 Seamless Pipes Specifications
Specifications : ASTM A 335 ASME SA 335
Dimensions : ASTM, ASME and API
Size : 1/8″NB TO 30″NB IN
Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Length : Within 13500mm
Type : Seamless / Fabricated
Form : Round, Hydraulic Etc
Length : Single Random, Double Random & Cut Length.
End : Plain End, Beveled End, Treaded
Alloy Steel P22 Pipes Chemical Composition
Alloy Steel P22 C Cr Mn Mo P S Si
0.05 – 0.15 1.90 – 2.60 0.30 – 0.60 0.87 – 1.13 0.025 max 0.025 max 0.50 max
Alloy Steel P22 Pipe Mechanical Properties
Tensile Strength, MPa Yield Strength, MPa Elongation
415 min 205 min 30 min
Outside Diameter & Tolerance
ASTM A450 Hot rolled Outside Diameter, mm Tolerance, mm
OD≤101.6 +0.4/-0.8
101.6<OD≤190.5 +0.4/-1.2
190.5<OD≤228.6 +0.4/-1.6
Cold Drawn Outside Diameter, mm Tolerance, mm
OD<25.4 ±0.10
25.4≤OD≤38.1 ±0.15
38.1<OD<50.8 ±0.20
50.8≤OD<63.5 ±0.25
63.5≤OD<76.2 ±0.30
76.2≤OD≤101.6 ±0.38
101.6<OD≤190.5 +0.38/-0.64
190.5<OD≤228.6 +0.38/-1.14
ASTM A530 & ASTM A335 NPS Outside Diameter, inch Tolerance, mm
1/8≤OD≤1-1/2 ±0.40
1-1/2<OD≤4 ±0.79
4<OD≤8 +1.59/-0.79
8<OD≤12 +2.38/-0.79
OD>12 ±1%
Alloy Steel P22 Seamless / High Pressure Pipes 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
P22 Alloy Steel Pipes 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)