ASTM A335 P91 Seamless Alloy Steel Pipe
These pipes are made from ferritic Alloy-Steel.
Classification :
Product
Product introduction
Product Description
The astm a335 P91 pipe is a seamless Pipe meant for high temperature applications. These pipes are made from ferritic Alloy-Steel.
Chemically the a335 P91 welded pipe contains elements like Molybdenum (Mo) and Chromium added to the alloy. When Molybdenum
and chromium are added to the alloy, there is an increase in the tensile strength of the sa335 grade P91 pipe. The tensile strength of
the a335 grade P91 pipe is 415 Mpa, while its yield strength is 205 Mpa. The elongation percentage of the pipe ranges between 20% to 30%.
Alloy Steel P91 Seamless Pipes is often referred to as excellent steel due to its increased resistance to chloride corrosion making it a very
suitable material for use in salt water environments.
| Specialized in | Large Diameter Size |
| Outer Dimensions | 19.05mm – 114.3mm |
| Wall Thickness | 2.0mm – 14 mm |
| Length | max 16000mm |
| Schedule | Schedule 20 - Schedule XXS (heavier on request) up to 250 mm thk. |
| Form | Round, Square, Rectangular, Hydraulic Etc. |
| Standard | ASTM A335 P91, SA335 P91 (with IBR Test Certificate) |
| Size | 1/2 NB to 36 NB |
| Thickness | 3-12mm |
| Schedule | SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules |
| Tolerance | Cold drawn pipe: +/-0.1mmCold rolled pipe: +/-0.05mm |
| Craft | Cold rolled and Cold drawn |
| Type | Seamless / ERW / Welded / Fabricated |
| Length | Single Random, Double Random & Cut Length. |
| End | Plain End, Beveled End, Treaded |
| Specialized in | Large Diameter SA335 P91 Material |
| Additional Testing | NACE MR 0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc. |
| Application | Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service |
| ASTM A335 P91 Pipe Types | Out diameter | Wall thickness | Length |
| ASTM A335 P91 Seamless Pipe (Custom Sizes) | 1/2" NB - 60" NB | SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160 | Custom |
| ASTM A335 P91 Welded Pipe (in Stock + Custom Sizes) | 1/2" NB - 24" NB | As per requirement | Custom |
| ASTM A335 P91 ERW Pipe (Custom Sizes) | 1/2" NB - 24" NB | As per requirement | Custom |
| ASTM A335 High Pressure P91 Boiler Pipe | 16" NB - 100" NB | As per requirement | Custom |
Technical data
ASTM A335 P91 Chemical Composition
| C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Mo, % | V, % | N, % | Ni, % | Al, % | Nb, % |
| 0.08-0.12 | 0.3-0.6 | 0.02 max | 0.01 max | 0.2-0.5 | 8.0-9.5 | 0.85-1.05 | 0.18-0.25 | 0.03-0.07 | 0.4 max | 0.04 max | 0.06-0.10 |
ASTM A335 P91 Properties
| Tensile Strength , MPa | Yield Strength, MPa | Elongation, % | Hardness, HB |
| 585 min | 415 min | 20 min | 250 max |
Physical Properties Of P91 Pipe
| Temperature T ° C / ° F (° C / F) |
Specific heat J / kgK (Btu / lb ° F) |
Thermal conductivity W / mK (Btu · in / ft 2 · h · ° F) |
Electrical resistance μΩ · cm (Ω circ / ft) |
Young's modulus kN / mm 2 (10 3 ksi) |
Expansion coefficient from 20 ° C to T 10 -6 / K (10 -6 / ° F) |
| 20/68 | 460 (-) | 26 (-) | 218 (-) | ||
| 200/392 | 207 (-) | 11.3 (-) | |||
| 400/752 | 190 (-) | 12.0 (-) | |||
| 500/932 | 30 (-) | 12.3 (-) | |||
| 600/1112 | 12.6 (-) | ||||
| 650/1202 | 162 (-) | 12.7 (-) |
| temperature | 0.2% proof stress at higher temperatures |
| ° C / ° F | Rp 0.2 |
| Mpa / ksi | |
| 100/212 | 410 / 59.4 |
| 200/392 | 380 / 55,1 |
| 300/572 | 360 / 52,2 |
| 400/752 | 340 / 49,3 |
| 500/932 | 300 / 43.5 |
| 600/1112 | 215 / 31,1 |
Storage video
Warehouse storage
The group company and factory cover an area of more than 800 mu, with more than 1,500 employees, and its business covers more than 20 countries and regions around the world. Xinghan Group is committed to developing new types of steel products and building a first-class coated sheet and steel manufacturing enterprise with international competitiveness. Xinghan Group hopes to grow into a widely respected and sustainable global resource-based enterprise through continuous pursuit of excellence, create better social, economic and environmental benefits, and bring more competitive value returns to employees and customers.

Packing and delivery
The company has major production lines such as pickling, cold rolling, hot dip galvanizing, hot dip galvanizing, thick plate galvanizing and color coating, forming an annual production capacity of 1 million tons of pickling coil, 1 million tons of cold rolled sheet and 900,000 tons of hot dip galvanized sheet. Galvanized and hot-dip galvanized aluminum zinc silicon steel sheet scale 450,000 tons thick galvanized steel plate scale 300,000 tons color coated steel plate scale is one of the largest steel and non-ferrous metal smelting and processing suppliers in Shandong Province.

Customer visit
The company adheres to the development strategy of "seeking development by science and technology, seeking efficiency by management", adheres to the core values of "people-oriented, integrity, responsibility and excellence", adheres to the development system of "green products and green industry", "promotes high-quality beyond development in an all-round way", and realizes the vision of "building a first-class aluminum processing service enterprise with international competitiveness".

Application field
The main supply fields are: aerospace, national defense equipment, military weapons, chemical industry, shipbuilding, nuclear energy, trains, containers, environmental protection, precision machining, auto parts, machinery, electronic products, molds, medical treatment Equipment, construction, decoration, etc.

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FAQ
Q:How long is your delivery time?
A:Within 5 days for stock size, 15-30 days for customized size.
Q:How can I get an accurate quote?
A:Please provide the information of prodcuts standard, material, size and quantity.
Q:When can I get your reply after the inquiry.
A:Within 15 minutes during working time, whthin 12 hours during non-working time.
Q:What product information do I need to provide?
A:You need to provide the grade, width, thickness,coating and the number of tons you need to purchase.
Q:Can you provide sample ?
A: We can provide the samll samples in stock for free, as long as you contact us. Customized samples will take about 5-7days.
Q:How many coutries you already exported ?
A: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Turkey, Jordan,India, etc.
Q: Can we visit your factory?
A: Sure, we welcome you to visit our factory , check our production lines and know more about our strength and quality.
Q:Can you send samples?
A:Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.
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