|
[China]
Trade Verify
Address: Room 2117, Building C, Wanda Plaza, NO. 58 Xinhua West Street, Tongzhou District, Beijing, China 101100
Contact name:Yana Dong
Y & G International Trading Company Limited |
|
Verified Suppliers
|
|
|
Stainless Steel Round Tube , High Precision S32304 Stainless Tube
Super duplex stainless such as duplex is a mixed microstructure of
austenite and ferrite which has improved strength over ferritic and
austenitic steel grades. The main difference is super duplex has a
higher molybdenum and chromium content which gives the material
greater corrosion resistance.
Super duplex has the same benefits as its counterpart - it has
lower production costs when compared with similar ferritic and
austenitic grades and due to the materials increased tensile and
yield strength, in many cases this gives the purchaser the welcomed
option of purchasing smaller thicknesses without the need to
compromise on quality and performance.
Standards:
ASTM A789 Standard Specification for Seamless and Welded
Ferritic/Austenitic Stainless Steel Tubing for General Service
Features:
1.Superior resistance to general and local corrosion, especially to
stress corrosion, pitting corrosion, crevice corrosion, corrosion
fatigue and abrasion & corrosion.
2.Good weldability
3.Good mechanical properties
4.Excellent intergranular corrosion resistance
5.High cost-effectiveness, long life time
Application:
Chemical processing, transport and storage,
Oil and Gas exploration and processing equipment,
Marine and other high chloride environments,
Pulp and paper digesters, liquor tanks and paper machines.
Chemical Requirements:
| Chemical Composition | |||||||||||
| UNS Designation | C | Mn | P | S | Si | Ni | Cr | Mo | N | Cu | Others |
| S32304 | 0.03 | 2.5 | 0.04 | 0.04 | 1 | 3.0-5.5 | 21.5-24.5 | 0.05-0.60 | 0.05-0.20 | 0.05-0.60 | … |
Mechanical properties:
| Mechanical properties | |||||
| UNS Designation | Tensile Strength, min, (Mpa) | Yield Strength, min,(Mpa) | Elongation in 2 in. or 50mm, min, % | Hardness, max. | |
| S32304 | 690 | 450 | 25 | … | … |
| OD ≤1 in. (25mm) | |||||
| S32304 | 600 | 400 | 25 | 290 | 30 |
| OD > 1 in. (25mm) | |||||
Mark: As required.
Inspection and Test: chemical composition test, mechanical properties test(tensile, yield, elongation), process properties test(flatting, flaring, bending, hardness, impact, etc.), appearance and size test, non-destructive inspection test, hydrostastic test.
Delivery status: Annealed, normalized, normalized+Tempered, etc.
Surface treatment: oil impregnation, paint, passivation, phosphating, shot blasting etc.
Packing: Exporting package/wooden box /as requirement.
