As a prominent supplier, Excellent Overseas is responsible for delivering unparalleled quality in ASTM A335 P22 Alloy Steel Seamless Pipe Suppliers from leading Manufacturers like Tubes, MSL, Seah, Hyundai, ArcelorMittal and NSSMC.

Table of Content

1. Supply Range & Dimensions

Seamless Pipe Size1/2" NB to 24" NB
Outside Diameter21.3 mm – 609.6 mm
Pipe Schedule (WT)SCH-10 to SCH-XXS Upto 80 MM
Pipe LengthSRL, DRL, 20 Ft, 40 Ft, Cut Length
Pipe TypesHot Finished Seamless, Cold Drawn Seamless
Pipe EndsPlain End (PE), Bevel End (BE)
Delivery ConditionsAnnealed, Normalized & Tempered
Specification LevelASTM A335 / ASME SA335
Equivalent GradesEN 10216-2 10CrMo9-10, JIS G 3458 STPA24, ASTM A213 T22, DIN 17175 10CrMo9-10
Surface FinishNatural, Bare, Oiled, Mill Varnish
FormRound Pipe Only
End Protection CapsPlastic Caps or Iron Protectors
CertificationsComplete Traceability EN 10204 3.1, 3.2, IBR Certified

2. Manufacturers in Stock

Hyundai Hysco
Hyundai Hysco
Valcovny Trub
Valcovny Trub
Benteler
Benteler Make
SEAH Korea
SEAH Korea
Butting
Butting Make
JFE
JFE Make
Arcelormittal
ArcelorMittal
Tenaris
Tenaris Steel
MSL
MSL Make
Nippon Steel
Nippon Steel
Tubular Canada
Tubular Canada
Tubos
Tubos API

3. Chemical Components

The main alloying elements of ASTM A335 P22 are chromium and molybdenum, with contents of 1.90-2.60% and 0.87-1.13%, respectively. The total content of the two elements does not exceed 5%, which is a type of low alloy steel.

Grade Carbon Manganese Phosphorus Sulfur Silicon Chromium Molybdenum
ASTM A335 P22 0.05 - 0.15 0.30 - 0.60 0.025 max 0.025 max 0.50 max 1.90 - 2.60 0.87 - 1.13

4. Mechanical Properties

Grade ASTM A335 P22
Tensile strength, min, ksi [MPa] 60 [415]
Yield strength, min, ksi [MPa] 30 [205]
Elongation in 2 in. or 50 mm, (or 4D), min, % Longitudinal Transverse
Basic minimum elongation for wall 5/16 in [8 mm] and over in thickness 30 20
Standard round 2 in or 50 mm specimen 22 14

In addition to the tensile test requirements listed above, P22's mechanical property test program also includes a flattening test and bending test.

5. Hardness Requirement

Grade Brinell Vickers Rockwell
P22 ≤ 250 HBW ≤ 265 HV ≤ 25 HRC

6. ASTM A335 P22 Equivalent

ASME ASTM EN DIN GB JIS
ASME SA335 P22 ASTM A213 T22 DIN 10216-2 10CrMo9-10 DIN 17175 10CrMo9-10 GB/T 5310 12Cr2MoG JIS G 3458 STPA24

When selecting an equivalent material, consideration should be given to the operating temperature, pressure, type of medium, and the required mechanical properties and corrosion resistance.

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7. Heat Treatment

All P22 piping must be heat-treated in accordance with the following requirements.

Grade Heat Treat Type Normalizing Temperature Tempering Temperature, min
P22 full or isothermal anneal — —
normalize and temper — 1250 °F [675 °C]

8. A335 GR P22 ALLOY STEEL SEAMLESS PIPES TOLERANCE

NPS OD Tolerance NPS WT Tolerance
1/8" ≤ NPS ≤ 1 1/2" +/- 0.4 1/8" ≤ NPS ≤ 2 1/2", All T/D ratios. +20%, -12.5%
1 1/2" < NPS ≤ 4" +/- 0.79 NPS ≥ 2 1/2", T/D ≤ 5% +22.5%, -12.5%
4" < NPS ≤ 8" +1.59, -0.79 NPS ≥ 2 1/2", T/D > 5% +15%, -12.5%
8" < NPS ≤ 12" +2.38, -0.79

(T = Specified Wall Thickness; D = Specified Outside Diameter)

9. Inspection Standards for ASTM A335 P22 Pipes

Test Standard
Visual InspectionASTM A530
Dimensional InspectionASTM A999
Chemical Composition AnalysisASTM E415
Tensile TestASTM A370
Hardness TestASTM E10
Ultrasonic TestingASTM E213
MPIASTM E709
Radiographic TestingASTM E94
Hydrostatic TestingASTM A999
Heat Treatment VerificationASTM A335

10. Delivery Conditions & More

Standard Delivery Condition Grade
ASTM A335 Full Anneal, Isothermal Anneal, or Normalized & Tempered P22
ASME SA335 Full Anneal, Isothermal Anneal, or Normalized & Tempered P22

11. Process of Manufacturing

Alloy Steel Seamless Pipe Manufacturing Process - Excellent Overseas

12. Countries We Export To