441 Grade Stainless Steel Welded Pipe 38*1.5mm Used For Exhuat System Tubing SUS441
| Standard | ASTM A554,ASTM A312,ASTM A249,ASTM A790,ASTM A688, ASTM A269,ASTM A268, JIS G3463-2006,ASTM A651 |
| Grade | 201,202,304,316,316L, 409L,430,410, 444,445J2,44660,S31803,S32750 |
| Size Range | OD:6.35mm-160mm WT:0.15mm-3mm |
| Certification | ISO9001:2008,TUV |
Tolerance |
a) Outer Diameter: +/- 0.2mm |
| b) Thickness: +/- 0.02mm | |
| c) Length: +/- 5mm | |
| Surface | 180G, 320G, Satin,400G, 600G ,2B,BA |
| Application | Power station, cooling tower, underfloor heating ,heat recovery system, especially high Chloride seawater heat exchanger. |
| Test | Raw material checking, extended test, Hydraulic test, crystal rot test, Pneumatic test , Eddy Current test, TX-ray test. Tension test |
| Production equipment | W+O forming, welding seam tracking, multi-cathode TIG welding, molten pool electromagnetic stirring technology, endoscope welding with monitoring, online welding with inside and outside rolling, online annealing, micron grade laser calipering, encoder-based high-precision sizing, internal polishing. |
| Packing | Standard export, in bulk / bundles / nylon fabric bags with seaworthy packing; or according to customers' requestments. |
| Delivery Time | 1. 20-45 days after received deposit or confirmed L/C 2. Depends on your oder quantity |
| Payment Terms |
1. T/T: 30% advance, 70% balance before the shipment
|
441 Stainless Steel
Description:
Type 441 Stainless Steel is a ferritic stainless steel which provides good high-temperature strength (exceeding that of Types 409 and 439 Stainless Steels) plus good corrosion resistance in many exhaust gas environments (equivalent to Type 439 and 18 Cr-Cb Stainless Steels). . Ferritic steels are not inherently strong at elevated temperatures, but columbium additions coupled with appropriate solution annealing markedly improve long-time creep rupture strength. Type 441 is dual stabilized with niobium and titanium to provide good weld ductility and resistance to intergranular corrosion in the weld heat affected zone.
Product Forms:
Sheet, Strip
Specifications:
ASTM A240 (S43940) and EN 10088-2 (1.4509)
Typical Applications:
Automotive exhaust tube and components
Chemical Composition:
| Element | UNS 43940 | EN 1.4509 |
|---|---|---|
| Carbon | 0.030 max. | 0.030 max. |
| Manganese | 1.00 max. | 1.00 max. |
| Sulfur | 0.015 max. | 0.015 max. |
| Phosphorus | 0.040 max | 0.040 max. |
| Silicon | 1.00 max. | 1.00 max. |
| Chromium | 17.5 – 18.5 | 17.5 – 18.5 |
| Titanium | 0.10 – 0.60 | 0.10 – 0.60 |
| Nitrogen | - | 0.045 max. |
| Niobium | 0.30+(9xC) min. | 0.30+(9xC) min.– 1.00 max. |
Mechanical Properties:
| Type | Yield Strength 0.2% offset (KSI) | Tensile Strength (KSI) | % Elongation (2" Gauge length) | Hardness Rockwell |
|---|---|---|---|---|
| UNS S43940 | 36 min. | 62 min. | 18 min. | HRB 88 max. |
| EN 1.4509 | 36 min. | 62 - 91 | 18 min. |
Product picture:
Packing&shipping:
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A: Each piece of products is manufactured by certified workshops, inspected by Jurong company piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.
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