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Manufacture 409L stainless steel coil, 409/409L stainless steel welded pipe, 1.4512 stainless steel seamless tube

Short Description:

439 is an 18% chromium, titanium stabilized ferritic stainless steel with corrosion resistance similar to that of 304/304L stainless steel. This grade may be used in the annealed, cold formed or as-welded condition in applications where other stainless steels such as 304/304L and 430 are used. 439 has good weldability due to titanium stabilization and has excellent resistance to stress corrosion cracking. 439 outperforms 409 in both oxidation and corrosion resistance and typical applications include tubular manifolds and exhaust system components.

409 is a heat resisting ferritic stainless steel providing good oxidation and corrosion resistance compared to carbon steel. This titanium stabilized grade was developed for automotive exhaust systems but its good formability, weldability, and corrosion resistance has led to its use in other applications. The corrosion resistance of 409 is better than coated carbon steel, similar to that of 410 stainless steel, and less than that of 304/304L stainless steel. Type 409 is not suggested for cosmetic or surface critical applications as light surface rusting can form during exposure to atmospheric conditions.


Product Detail

Product Tags

Application

409/409L is designed principally for the automotive exhaust industry, it has been successfully used in other industrial applications as well. Some examples of applications that call for 409/409L include
▪ Automotive exhaust systems
▪ Catalytic converters
▪ Mufflers
▪ Tailpipes
▪ Farm equipment
▪ Structural support and hangers
▪ Transformer cases
▪ Furnace components
▪ Heat exchanger tubing

Chemical Composition

Element 409 409L
Carbon 0.08 0.03 max
Chromium 10.5-11.7 10.5-11.7
Nickel 0.50 max 0.5 max
Manganese 1.00 max 1.0 max
Silicon 1.00 max 1.0 max
Nitrogen 0.030 max 0.030 max
Phosphorus 0.040 max 0.040 max
Sulfur 0.020 max 0.020 max
Niobium 8 x (C+N) min / 0.15-0.50 6 x (C+N) min / 0.15-0.50

Mechanical Properties

Property 409 409L
Yield Strength, min. (ksi) 25 25
Tensile Strength, min. (ksi) 55 55
Elongation, min. (%) 20 20
Hardness, max. (Rb) 88 88

Weldability

1.Readily weldable
2.Pre-heat of 302 to 500oF (150 to 260oC) is recommended
3.Post-weld annealing at 1400 to 1499oF improved weld ductility
4.Post-weld annealing is not required when welding thin sections
5.Automotive exhaust tubing is typically welded without filler metal
6.CORROSION RESISTANCE:
7.Resists atmospheric and exhaust gas corrosion
8.In most atmospheres a light surface rust will form which inhibits further corrosion but makes the surface less appealing

Available Sizes And Specifications

409/409L stainless steel plate sizes and specifications
Grade 409/409L
Cold rolled stainless steel plate Thickness: 0.3mm- 16.0mm, Width: 1000mm - 2000mm,Length: as requirements, Surface: 2B/BA/SB/8K/HL/1D/2D etc
Hot rolled stainless steel sheet Thickness: 3.0mm - 300mm, Width: 1000mm - 3000mm
Length: as requirements, Surface: No.1/pickling
Standard ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303,
BS 1449, DN17441, G4305
Stainless steel plate Thickness: 8.0mm - 300mm, Width: 1000mm - 3000mm
Length: as requirements, Surface: No.1/pickling
409/409L stainless steel strip sizes and specifications
Grade 409/409L
Cold rolled stainless steel strip Thickness: 0.3mm- 3.0mm, Width: 5mm - 900mm,Surface: 2B/BA/SB/8K/HL/1D/2D etc
Hot rolled stainless steel strip Thickness: 3.0mm - 16mm, Width: 10mm - 900mm
Surface: No.1/pickling
Stainless steel foil Thickness: 0.02mm- 0.2mm, Width: Less than 600mm, Surface: 2B
Standard ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303,  BS 1449, DN17441, G4305
409/409L stainless steel coil sizes and specifications
Grade 409/409L
Cold rolled stainless steel coil Thickness: 0.3mm- 3.0mm, Width: 1000mm - 2000mm,Surface: 2B/BA/SB/8K/HL/1D/2D etc
Hot rolled stainless steel coil Thickness: 3.0mm - 16mm, Width: 1000mm - 2000mm,Surface: No.1/pickling
 Standard ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303,   BS 1449, DN17441, G4305
409/409L stainless steel pipe sizes and specifications
Grade 409/409L
Stainless steel seamless pipe Outside diameter: 4.0 - 1219mm, Thickness: 0.5 -100mm,
Length: 24000mm
Stainless steel welded pipe Outside diameter: 6.0 - 2800mm, Thickness: 0.3 -45mm,Length: 18000mm
Stainless steel capillary pipe Outside diameter: 0.4 - 16.0mm, Thickness: 0.1 -2.0mm,
Length: 18000mm
Stainless steel welded sanitary pipe Outside diameter:8.0- 850mm, Thickness: 1.0 -6.0mm
Stainless steel seamless sanitary pipe Outside diameter: 6.0- 219mm, Thickness: 1.0 -6.0mm
Stainless steel square pipe Side Length: 4*4 - 300*300mm, Thickness: 0.25 - 8.0mm, Length: 18000mm
Stainless steel rectangular pipe Side Length: 4*6 - 200*400mm, Thickness: 0.25 - 8.0mm, Length: 18000mm
Stainless steel coil pipe Outside diameter: 0.4 - 16mm, Thickness: 0.1 - 2.11mm
Standard American Standard: ASTM A312, ASME SA269, ASTM A269, ASME SA213, ASTM A213 ASTM A511 ASTM A789, ASTM A790, ASTM A376, ASME SA335, B161, SB163, SB338, SB667/668
Germany Standard: DIN2462.1-1981, DIN17456-85, DIN17458-85·
European Standard: EN10216-5, EN10216-2
Japanese Standard: JIS G3463-2006, JISG3459-2012
Russian Standard: GOST 9941-81
409/409L stainless steel profile sizes and specifications
Grade 409/409L
Specification EN, DIN, JIS, ASTM, BS, ASME, AISI, ISO
Standard ASTM A276/ASME SA276, ASTM A479/ASME SA479 & ASTM A164/ASME SA164 .
Stainless steel round Bar Diameter: 2mm - 600mm
Stainless steel bright Bar Diameter: 2mm - 600mm
Stainless steel hex Bar Dimension: 6mm - 80mm
Stainless steel square bar Dimension: 3.0 - 180mm
Stainless steel flat bar Thickness: 0.5mm - 200mm, Width: 1.5mm - 250 mm
Stainless steel angle bar as requirements
Length Normally 6m, or produce as requirements
Surface Black, Bright. Peeled and Polished, Solution annealed.
Delivery condition cold drawn, hot rolled, forged, grinding, centerless grinding
Tolerance H8, H9, H10, H11, H12, H13,K9, K10, K11, K12 or as per clients’ requirements

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