| Type: | Stainless Steel Pipes |
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| Standard: | ASTM, AISI, GB, JIS, DIN, EN |
| Grade: | 300 Series |
| Certification: | ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS |
| Shape: | Round |
| Technique: | Welded |
| Samples: |
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| Customization: |
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The terms "A789" and "A790" refer to ASTM (American Society for Testing and Materials) standards, and when mentioned in connection with which translates to "Super Duplex Stainless Steel Pipe," they specify particular qualities and applications of stainless steel pipes. Here's a detailed analysis:
ASTM A789: This standard specifies the requirements for seamless and welded ferritic/austenitic (duplex) stainless steel tubing for general service. The main focus of A789 is on tubing used in environments where resistance to general corrosion and chloride stress corrosion cracking is important. It covers many duplex grades, including super duplex steels.
ASTM A790: This standard is very similar to A789 but is specifically for seamless and welded ferritic/austenitic (duplex) stainless steel pipe. ASTM A790 is generally used for large diameter piping for bulk handling of fluids and gases where high strength and high resistance to corrosive environments are necessary.
Super Duplex Stainless Steel: Super duplex stainless steel is a highly alloyed type of stainless steel that contains high levels of chromium, nickel, molybdenum, and nitrogen, which confer excellent resistance to chloride pitting and crevice corrosion attack. The duplex structure provides these steels with exceptional strength and toughness, while the high chromium and molybdenum content provides superior resistance to corrosive environments compared to standard duplex steels.
Characteristics and Applications of Super Duplex Stainless Steel Pipes:
Common Uses:
The combination of ASTM A789 and A790 for super duplex stainless steel pipes ensures that these materials meet strict standards for production and performance, making them suitable for critical and high-end applications in severe environments.
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1. |
Item |
A789 A790 Super Duplex Stainless Steel Pipe |
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2. |
Standard |
ASTM A213, A312, ASTM A269,ASTM A778, ASTM A789, DIN 17456, DIN 17457,DIN 17459, JIS G3459, JIS G3463, GOS T9941,EN 10216, BS3605, GB13296,etc. |
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3. |
Material |
201,202,301,304,304L,304N,XM21,304LN,309S,310S,316,316Ti, 316L,316N,316LN,317,317L,321,329,etc. |
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4. |
Specifications |
Wall thickness |
1.0-150mm(SCH10S-XXS) |
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Outside diameter |
3.0-2500mm(1/8"-100") |
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Length |
6m,5.8m,8m,11.8m,12m or as required. |
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5. |
Surface |
Pickling, annealing, polishing, bright, sand blast, hair line, etc. |
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6. |
Price Term |
Ex-work, FOB, CFR, CIF, or as required. |
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7. |
Payment Term |
T/T, L/C, Western Union. |
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8. |
Export to |
Singapore, Canada, Indonesia, Korea, USA, UK, Thailand,Saudi Arabia, Vietnam, , , India, Peru, Ukraine ,Brazil,South Africa, etc. |
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9. |
MOQ |
500kg |
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10. |
Delivery Time |
Prompt delivery or according to order's quantity. |
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11. |
Package |
Export standard package: bundled wooden box, suit for all kinds of transport, or be required. |
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12. |
Application |
widely used in petroleum, chemical, medical, food, light industry, machinery, instrument and other industrial pipeline and mechanical structure parts, etc. |
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13. |
Contact |
If you have any question, please feel free to contact me. |
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| Stee Grade |
Chemical Composition % | ||||||||||
| C | Cr | Ni | Mn | P | S | Mo | Si | Cu | N | Other | |
| 201 | ≤0.15 | 16.00-18.00 | 3.50-5.50 | 5.50-7.50 | ≤0.060 | ≤0.030 | ≤1 | ≤0.25 | |||
| 202 | ≤0.15 | 17.00-19.00 | 4.00-6.00 | 7.50-10.00 | ≤0.060 | ≤0.030 | ≤1 | ≤0.25 | |||
| 301 | ≤0.15 | 16.00-18.00 | 6.00-8.00 | ≤2.0 | ≤0.065 | ≤0.030 | ≤1.00 | ||||
| 302 | ≤0.15 | 17.00-19.00 | 8.00-10.00 | ≤2.00 | ≤0.035 | ≤0.030 | ≤1.00 | ||||
| 304 | ≤0.08 | 18.00-20.00 | 8.00-11.00 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1.00 | ||||
| 304L | ≤0.035 | 18.00-20.00 | 8.00-12.00 | ≤2 | ≤0.045 | ≤0.030 | ≤1.00 | ||||
| 305 | ≤0.12 | 17.00-19.00 | 11.00-13.00 | ≤2 | ≤0.045 | ≤0.03 | Om | ≤1.00 | |||
| 309S | ≤0.08 | 22.00-24.00 | 12.00-15.00 | ≤2 | ≤0.045 | ≤0.030 | ≤1 | ||||
| 310S | ≤0.08 | 24.00-26.00 | 19.00-22.00 | ≤2 | ≤0.045 | ≤0.030 | ≤1.00 | ||||
| 316 | ≤0.08 | 16.00-18.00 | 10.00-14.00 | ≤2 | ≤0.045 | ≤0.030 | 2.00-3.00 | ≤1.00 | |||
| 316L | ≤0.035 | 16.00-18.00 | 10.00-14.00 | ≤2.00 | ≤45 | ≤0.03 | 2.00-3.0 | ≤1.00 | |||
| 317 | ≤0.08 | 18.00-20.00 | 11.00-14.00 | 2.00 | ≤0.045 | ≤0.030 | 3.00-4.00 | ≤1 | |||
| 317L | ≤0.035 | 18.00-20.00 | 11.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | 3.00-4.00 | ≤1.00 | |||
| 321 | ≤0.08 | 17.00-19.00 | 9.00-12.00 | ≤2 | ≤0.045 | ≤0.030 | ≤1.00 | Ti5(C%-0.02 ~0.08 |
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| 347 | ≤0.08 | 17.00-19.00 | 9.00-13.00 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1.00 | Nb≥10*C% |
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Application of welded steel pipe,seamless steel pipe, cold hot rolled round pipe, and stainless steel pipe: construction material, buidlings, bridges, building decoration, chemical industry, car mainfold, water supply, petroleum pipeline, water pipe,boiler pipe, automobile pipe,hydraulic, building and equipment, pipeline
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