A335 P5B Alloy Steel Pipe
These alloy steel seamless pipes are designed as per international and national standards and are available in customized lengths, sizes and shapes to our esteemed clients. gnee also provides the same services at the best prices in the market.
A 335 Class P5b specification covers nominal wall and minimum wall seamless ferritic alloy steel pipe for high temperature service. A 335 P5b high temperature alloy steel seamless pipe has a typical chemical composition with the addition of 4.00-6.00 chromium and 0.45-0.65 molybdenum. The minimum tensile strength of the bearing is 415 MPa and the minimum yield strength is 205 MPa.
A335 P5b grade pipe is a low alloy carbon steel that is self-quenching in air. Welding requires high hardness and residual stress. A335 P5b alloy pipe is directly used in services requiring critical conditions that require the application of post-weld heat treatment. A 335 P5b seamless alloy steel pipe is used in high temperature service applications such as oil and gas, power and chemical plants.
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A335 alloy steel P5 seamless pipe specifications
| Grade | Alloy Steel P5b/ UNS K51545 |
| Standard | ASTM A335 / ASME SA335 |
| Size | 1/2″ NB To 36″ NB |
| Outer Diameter | 19.05mm – 114.3mm |
| Length | Single Random, Double Random & Cut Length. |
| Wall Thickness | 2.0mm – 14 mm |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Form | Round, Square, Rectangular, Hydraulic Etc |
| Type | Seamless / ERW / Welded / Fabricated / EFW / Cold Drawn / Annealed & Pickled / Hot Finished / Extruded / LSAW Pipes / Structural |
| End | Plain End, Beveled End, Treaded |
| Packaging | Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
| Transportation | By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) |
A335 P5B High pressure boiler tube Chemical Composition
| Alloy Steel P5b | C | Cr | Mn | Mo | P | S | Si |
| 0.05 – 0.15 | 4.00 – 6.00 | 0.30 – 0.60 | 0.45 – 0.65 | 0.025 max | 0.025 max | 0.50 – 1.00 |
A335 P5B Alloy steel Tubes Mechanical Properties
| Tensile Strength, MPa | Yield Strength, MPa | Elongation, % |
| 415 min | 205 min | 30 min |
A335 P5B seamless Alloy steel pipe

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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FAQ
1.Q.What's your advantage?
A.Honest business with competitive price and professional service on export process.
2.Q.Can your products be customized?
A.Yes, we can produce and process according to your requirements.
3.Q. Do you have a quality control system?
A.Yes, we have our own quality control laboratory.
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