A335 P5 Seamless Alloy Pipes
GNEE is a major supplier of A335 P5 seamless pipes, we provide high quality steel pipes to customers around the world according to their needs.
A335 P5 high temperature seamless pipe has high levels of Cr and Mo, its minimum tensile strength is 415MPa, and its minimum yield strength is 205Mpa with appropriate hardness at room temperature.
A335 P5 chromium-molybdenum alloy pipe Due to the addition of elements chromium and molybdenum, molybdenum can improve strength, elastic limit, wear resistance, impact quality and hardenability. Chromium increases high-temperature strength, increases oxidation resistance, and increases tensile, yield, and hardness at room temperature. This gives A335 P5 seamless alloy pipe excellent high temperature creep resistance and corrosion resistance and inhibits the occurrence of pitting corrosion.
Therefore, A335 P5 high-temperature alloy steel pipes are mainly used in the production of high-temperature applications such as oil exploration, natural gas transmission, and thermal power generation.
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A335 P5 Seamless Ferritic Alloy Steel Pipe Specification Table
| Size in Inch | 1/8NB TO 24NB inch |
| ASTM Standards | ASTM A 335, and ASME SA 335 |
| Type | Seamless Pipe |
| Specialized in Size | Large Diameter Size |
| Outer Dimensions Chart | 19.05milimeter – 114.3milimeter |
| Wall Thickness Chart | 2.0milimeter – 14 milimeter |
| Length in milimeter | max 16000milimeter |
| Schedule Chart | Schedule 20 - XXS up to 250 milimeter thk. |
| Pipe Form | Round, Rectangular, Square, Hydraulic Etc. |
| Length | Single, Double Random & Cut to Length. |
| Pipe & Tube End | Plain, Beveled, Treaded. |
A335 P5 Boiler tubes Chemical Composition:
| Chemical Components (%) | ||||||||||||
| Grade | C | Mn | P | S | Si | Cr | Mo | V | Nb | N | Al | others |
| P5 | 0.15max | 0.30-0.60 | ≤0.025 | ≤0.025 | 0.50max | 4.0-6.0 | 0.45-0.65 | / | / | / | / | / |
A335 P5 High pressure tubes Tensile Requirements and Hardness:
| Mechanical Properties | ||||
| Grade | Tensile | Yield | Elongation | Hardness |
| Strength (Mpa) | Strength (Mpa) | (%) | ||
| P5 | ≥415 | ≥205 | ≥30 | ≤89HRB |
A335 P5 Hydraulic tubes Heat Treatment Requirements
| Grade Chet | Heat Treatment Type | Normalize Temp Range F [C] | Annealing and Tempering Temp Range F [C] |
| P5 (b,c) | Isothermal or Full Anneal | ||
| Temper and Normalize | ***** | 1250 [675] | |
| Subcritical Anneal (P5c only) | ***** | 1325 - 1375 [715 - 745] |
A335 P5 Seamless Pipes

Why choose us
gnee has 14 steel production lines, 10 processing equipment for processing, bending, painting, heat treatment, cutting, drilling, beveling, tempering, surface treatment, complete testing equipment and strong technical force. The annual production capacity is more than 60,000 tons.
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