ASTM A335 Round Ferritic Alloy Steel Tubes / Pipe For Heat - Exchangers
ASTM A335 Steel Ferritic Alloy Tubes Pipe for High-Temperature and Boilers
ASTM A335 Seamless ferritic and alloy steel pipe for high temperature service
Applications: for Boilers,Superheaters,Heat-Exchangers
Size range: O.D.:6-420mm W.T.:1-50mm L: according to customer requirement
| Steel Grade and Chemical Compositions: | |||||||
| Steel Grade | C | Mn | P | S | Si | Cr | Mo |
| max | max | max | max | max | min | ||
| P5 | 0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 | 4.00-6.00 | 0.45-0.65 |
| P9 | 0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 |
| P11 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
| P12 | 0.05-0.15 | 0.30-0.61 | 0.025 | 0.025 | 0.50 | 0.80-1.25 | 0.44-0.65 |
| P21 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 | 2.65-3.35 | 0.80-1.06 |
| P22 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 | 1.90-2.60 | 0.87-1.13 |
| P91 | 0.08-0.12 | 0.30-0.60 | 0.020 | 0.010 | 0.20-0.50 | 8.00-9.50 | 0.85-1.05 |
| P92 | 0.07-0.13 | 0.30-0.60 | 0.020 | 0.010 | 0.50 | 8.50-9.50 | 0.30-0.60 |
| Steel Grade | Tensile Strength | Yield Strength | Elongation | Hardness.Max | ||
| min.ksi [Mpa] | min.ksi [Mpa] | % | Brinell/Vickers | Rockwell | ||
| P1, P2 | 55[380] | 30[205] | 20 | |||
| P12 | 60[415] | 32[220] | 20 | |||
| P23 | 74[510] | 58[400] | 20 | |||
| P91 | 85[585] | 60[415] | 30 | 250 HB/265 HV | 25 HRC | |
| P92, P911 | 90[620] | 64[440] | 30 | 250 HB/265 HV | 25 HRC | |
| P122 | 90[620] | 58[400] | 30 | 250 HB/265 HV | 25 HRC | |
Reference Docuemtents:
ASTM A450/A 450M Specification for General Requirements for Carbon, Ferritic Alloy, and Austentic
Alloy Steel Tubes
ASTM A999/A 999M Specification for General Requirements for Alloy and Stainless Steel Pipe
ASTM E213 Practice for Ultrasonic Examination of Metal Pipe and Tubing
ASTM E309 Practice for Eddy-Currend Examination of Steel Tubular Products Using
Magnetic Saturation
ASTM E381 Method of Maroetch Testing Steel Bars, Billets, Blooms, and Forings
ASTM E527 Practice for Numbering Metals and Alloys
ASTM E570 Practice for Flux Leakage Examination of Ferromagnetic Steel Tubular Products
SNT-TC-1A Recommended Practice for Nondestructive Personnel Qualification and Certification
SEA J 1086 Practice for Numbering Metals and Alloys
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