Our ISO 9001, 14001 and 45001 certified operations cover the full range of sizes from 1/8" NB to 24" NB, schedules from SCH 20 through XXS, and lengths up to 16,000 mm. ASTM A335 P5 pipe is available in full anneal, isothermal anneal, or normalised and tempered condition. Compatible fittings include ASTM A234 WP5, and compatible flanges include ASTM A182 F5.
Specifications of ASTM A335 P5 Pipe
The specifications of ASTM A335 P5 Pipe, including size range, length and surface finish is listed in the table given below.
| Parameter | Specification |
|---|---|
| Standards | ASTM A335 / ASME SA335 |
| Size Range | 1/8" NB to 24" NB |
| Wall Thickness | SCH 20 to XXS (approx. 2.0 mm to 14 mm, depending on size) |
| Length | Single Random, Double Random, or up to 16,000 mm |
| End Type | Plain End (PE), Bevelled End (BE), Threaded |
| Surface Finish | Black, Painted, Varnished, Anti-corrosion Oil, Shot Blasted |
| Form | Seamless Pipe |
ASTM A335 P5 Pipe Sizes and Dimensions
The sizes and dimensions available in ASTM A335 P5 Pipe are listed in the table given below
| Parameter | Specification |
|---|---|
| Nominal Bore (NB) | 1/8" NB to 24" NB |
| Pipe Schedules | SCH 20 to XXS |
| Wall Thickness | 2.0 mm to 14 mm |
| Length | Up to 16,000 mm |
| Outer Diameter (OD) | 10.3 mm to 609.6 mm (as per ASME B36.10) |
| Availability | Common sizes in stock; non-standard sizes available on request |
Dimension Tolerances
Outer diameter and wall thickness tolerances for ASTM A335 P5 pipe follow the limits set in the ASTM A335 standard. The table below summarises OD tolerance by size range.
| NPS Range | OD Tolerance (+) | OD Tolerance (-) |
|---|---|---|
| 1/8 to 1-1/2 | +/- 0.40 mm (1/64") | +/- 0.40 mm (1/64") |
| Over 1-1/2 to 4 | +/- 0.79 mm (1/32") | +/- 0.79 mm (1/32") |
| Over 4 to 8 | +1.59 mm (1/16") | -0.79 mm (1/32") |
| Over 8 to 12 | +2.38 mm (3/32") | -0.79 mm (1/32") |
| Over 12 | +/- 1% of specified OD | +/- 1% of specified OD |
ASTM A335 P5 Pipe Schedule Chart
The schedule chart below shows nominal pipe size, outer diameter, and wall thickness for commonly ordered ASTM A335 P5 pipe schedules.
| NPS (inches) | OD (mm) | SCH 40 WT (mm) | SCH 80 WT (mm) | SCH 160 WT (mm) |
|---|---|---|---|---|
| 1/2" | 21.3 | 2.77 | 3.73 | 4.75 |
| 1" | 33.4 | 3.38 | 4.55 | 6.35 |
| 2" | 60.3 | 3.91 | 5.54 | 8.74 |
| 4" | 114.3 | 6.02 | 8.56 | 13.49 |
| 6" | 168.3 | 7.11 | 10.97 | 18.26 |
| 8" | 219.1 | 8.18 | 12.70 | 23.01 |
| 10" | 273.1 | 9.27 | 15.09 | 28.58 |
| 12" | 323.8 | 10.31 | 17.48 | 33.32 |
| 16" | 406.4 | 12.70 | 21.44 | 36.53 |
| 24" | 610.0 | 17.48 | 30.96 | 59.54 |
ASTM A335 P5 Pipe Price
ASTM A335 P5 pipe prices range from ₹80 to ₹300 per kg in India, and $2.50 and $4.50 USD per kg. The final price can vary with size, schedule, quantity, and steel market conditions. Chromium and molybdenum surcharges impact per‑kg rates. Larger, heavier pipes cost more; bulk orders are affordable, and certifications, special surface finishes, end preparation, and urgent delivery add to overall pricing.
Contact Sachiya Steel International with your required sizes and quantities to get the best prices on ASTM A335 P5 seamless alloy steel pipe.
ASTM A335 P5 Pipe Chemical Composition
Chemical Composition
The chemical composition of ASTM A335 P5 Pipe, along with its proportion in percentage, is listed below.
ASTM A335 P5 Pipe Mechanical Properties
The mechanical properties of ASTM A335 P5 pipe, including hardness and elongation, are listed in the table below.
| Property | Value |
|---|---|
| Tensile Strength (min) | 415 MPa (60 ksi) |
| Yield Strength (min) | 205 MPa (30 ksi) |
| Elongation (min) | 20% |
| Hardness (max) | 207 HBW |
ASTM A335 P5 Equivalent Material Grades
International designations equivalent to ASTM A335 Grade P5, including EN and JIS, are listed in the table below.
| Standard | Designation |
|---|---|
| UNS | K41545 |
| EN 10216-2 | X12CrMo5 |
| Werkstoff Nr. | 1.7362 |
| DIN 17175 | 12CrMo195 |
| JIS G3458 | STPA 25 |
| GB 9948 | 1Cr5Mo |
| AFNOR | Z12CD5 |
P5, P5b, and P5c Sub-Grades
- ASTM A335 P5
- ASTM A335 P5b
- ASTM A335 P5c
Standard 5Cr–0.5Mo chromium-molybdenum steel grade as defined under ASTM A335, widely used for high-temperature service. It offers a balanced combination of strength, oxidation resistance, and weldability for general refinery and power applications.
It is a modified version of P5 with tighter control of trace elements to improve consistency and performance in critical environments. These limits increase reliability, especially where stricter quality and metallurgical control are needed.
Further refined composition with additional adjustments tailored for specific high-temperature or corrosive service conditions. It is usually chosen for tougher jobs where the material needs to stay stable and perform well over a long time.
ASTM A335 P5 Pipe Applications
ASTM A335 P5 pipe is used in high-temperature, high-pressure piping systems in various high-performing industry applications.
Oil and Gas Refineries
P5 pipe serves refinery heater coils, catalytic reformer lines, and hydrodesulfurization units handling high‑temperature, high‑pressure process streams.
Power Generation and Boiler Plants
A335 P5 pipe is used in boiler superheaters, main steam headers, and high-pressure feedwater lines in coal and gas power plants.
Petrochemical and Chemical Processing
Ammonia converter piping, methanol reactor transfer lines, and synthesis gas circuits in fertiliser plants specify 5Cr-0.5Mo pipe.
ASTM A335 P5 vs P9, P11, and P22 - Grade Comparison
The comparison table below highlights the key differences across P5, P9, P11 & P22 grades. P5 and P9 have equal strength, but P9’s higher chromium allows higher-temperature use. P11/P22 handle lower temperatures, so P5 bridges between them and P9.
| Property | P5 (5Cr-0.5Mo) | P9 (9Cr-1Mo) | P11 (1.25Cr-0.5Mo) | P22 (2.25Cr-1Mo) |
|---|---|---|---|---|
| Chromium Content | 4.00 to 6.00% | 8.00 to 10.00% | 1.00 to 1.50% | 1.90 to 2.60% |
| Molybdenum Content | 0.45 to 0.65% | 0.90 to 1.10% | 0.44 to 0.65% | 0.87 to 1.13% |
| Tensile Strength (min) | 415 MPa | 415 MPa | 415 MPa | 415 MPa |
| Yield Strength (min) | 205 MPa | 205 MPa | 205 MPa | 205 MPa |
| Hardness (max) | 207 HBW | 217 HBW | 163 HBW | 250 HBW |
| Max Service Temp (approx.) | 593°C | 650°C | 540°C | 590 to 600°C |
| PWHT Temperature | 720 to 760°C | 730 to 770°C | 675 to 730°C | 690 to 745°C |
ASTM A335 P5 Pipe Heat Treatment
ASTM A335 P5 pipe is heat treated by full annealing, isothermal annealing, or normalising and tempering to achieve the required strength and ductility for high temperatures. After welding, mandatory PWHT at 720–760°C for at least 1 hour per 25 mm wall thickness relieves stress and improves joint performance.
Shipping & Packaging
Heavy-duty wooden boxes Packing
We strictly follow seaworthy export handling standards to protect ASTM A335 P5 Pipe from transit damage, moisture ingress, and surface contamination during long-distance dispatch.
- Heavy-duty wooden boxes with moisture barrier lining
- HDPE stretch film wrapping on all bundles
- Plastic end caps on threaded and plain-end pipes
- Silica gel desiccants to minimize moisture exposure
- ISPM-15 fumigated wooden packaging for export
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Container End-Cap
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