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ASTM A335 is a specification standard for seamless ferritic alloy-steel pipe intended for high-temperature service. This specification covers several grades of high-strength steel tubing commonly used in various industrial applications. In this article, we will explore the key features, chemical composition, mechanical properties, steel grades, applications, and possible alternative grades of ASTM A335 steel tubing.
ASTM A335 specifies the requirements for seamless ferritic alloy-steel pipe with specific chemical composition and mechanical properties. The material should be suitable for high-temperature service and exhibit excellent resistance to oxidation, scaling, and corrosion.
| Steel Grade | C (Carbon) | Mn (Manganese) | P (Phosphorus) | S (Sulfur) | Si (Silicon) | Cr (Chromium) | Mo (Molybdenum) | Others |
|---|---|---|---|---|---|---|---|---|
| Grade P1 | 0.10-0.20 | 0.30-0.80 | 0.025 | 0.025 | 0.10-0.50 | 0.44-0.65 | - | - |
| Grade P2 | 0.10-0.20 | 0.30-0.61 | 0.025 | 0.025 | 0.10-0.30 | 0.50-0.81 | 0.44-0.65 | - |
| Grade P5 | 0.15 max | 0.30-0.60 | 0.025 | 0.025 | 0.5 max | 4.00-6.00 | 0.45-0.65 | - |
| Grade P9 | 0.15 max | 0.30-0.60 | 0.030 | 0.030 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 | V: 0.15-0.25, Nb: 0.03-0.07, N: 0.03 max |
| Grade 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 | - |
| Grade P22 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 1.90-2.60 | 0.87-1.13 | - |
| Grade 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 | V: 0.18-0.25, Nb: 0.06-0.10, N: 0.03-0.07 |
Note: The chemical composition is subject to individual grade requirements outlined in the ASTM A335 specification.
| Steel Grade | Tensile Strength (Min.) | Yield Strength (Min.) | Elongation (Min.) | Hardness (Max.) |
|---|---|---|---|---|
| Grade P1 | 415 MPa | 205 MPa | 30% | 163 HB |
| Grade P2 | 415 MPa | 205 MPa | 30% | 163 HB |
| Grade P5 | 415 MPa | 205 MPa | 30% | 163 HB |
| Grade P9 | 585 MPa | 415 MPa | 20% | 241 HB |
| Grade P11 | 415 MPa | 205 MPa | 30% | 163 HB |
| Grade P22 | 415 MPa | 205 MPa | 30% | 163 HB |
| Grade P91 | 585 MPa | 415 MPa | 20% | 250 HB |
ASTM A335 steel tubing is available in various grades according to the specific requirements of different applications. Here are some commonly used steel grades with their respective applications:
While ASTM A335 steel tubing meets various requirements, there are alternative grades available for specific applications. Some possible alternatives include ASTM A213, ASTM A519, and API 5L. The suitability of these alternatives should be determined based on the specific needs of each application.
Haiyan Sanxin Steel Pipe Factory is a leading manufacturer of steel pipes in China. Located in a region with excellent geographical advantages, the factory is situated close to the Zhoushan Port and Ningbo Port.
Our factory covers an area of more than 25,000 square meters and has been in the steel pipe manufacturing business for 20 years. Over this period, we have accumulated a wealth of professional experience, which has helped us establish ourselves as a trusted name in the industry.
At our factory, we specialize in the production of various types of steel pipes, including stainless steel pipe, carbon steel pipe, copper pipe, steel pipe,seamless steel pipe and welded pipe. Our expertise in this field is evident from the 12 patents that we hold, which demonstrate our commitment to innovation and excellence.
A: manufacturer,also can do trading.
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
