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| Brand Name: | Jinxi Pipe |
| Model Number: | Stainless steel pipe |
| MOQ: | 1 |
| Price: | 3000USD/TON |
| Payment Terms: | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability: | 10000000 |
ASTM A789 S31200 Stainless Steel Tube Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
Specifications
ASTM A789 S31200 tubing is specified for demanding service environments where standard 316L stainless steel is insufficient, particularly where chlorides, high strength, or stress corrosion cracking are primary concerns.
Grade S31200 is a lean duplex stainless steel,It offers a mixed microstructure of ferrite and austenite, providing a good combination of strength and corrosion resistance.
| American Standard | Standard Name |
| A 789 / SA 789 | Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service |
ASTM A789 S31200 Stainless Steel Tube Chemical Composition
(Sources American Standard A789 / A789M TABLE 2 Chemical Requirements)
| UNS Designation A | C | Mn | P | S | Si | Ni | Cr | Mo | N |
| S31200 | 0.03 | 2 | 0.045 | 0.03 | 1 | 5.5–6.5 | 24.0–26.0 | 1.20–2.00 | 0.14–0.20 |
ASTM A789 S31200 Stainless Steel Tube Mechanical Properties
(Sources American Standard A789 / A789M TABLE 1 Tensile and Hardness Requirements)
| UNS Designation | Tensile strength, | Yield strength, | Elongation | Hardness | |
| min, | min | in 2 in. or 50 | |||
| ksi[MPa] | ksi[MPa] | mm, min,% | Brinell | Rock-well C | |
| S31200 | 100 [690] | 65 [450] | 25 | 280 | ... |
ASTM A789 S31200 Stainless Steel Tube Application