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439 Stainless Steel Tubing Sus 439 Stainless Seel Tube 439 Stainless Steel pipe For Exhaust Tubing
Type 439 (UNS S43035) in Coil Form
Description Type 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 Type 304/304L and Type 430 are used. Type 439 has good weldability due to titanium stabilization and has excellent resistance to stress corrosion cracking. Type 439 outperforms Type 409 in both oxidation and corrosion resistance and typical applications include tubular manifolds and exhaust system components.
Chemical Composition Chemical Composition (wt%) limits as specified in ASTM A240 and ASME SA240*
Element
439
Carbon
0.030
Chromium
17.0-19.0
Nickel
0.50
Manganese
1.00
Silicon
1.00
Nitrogen
0.030
Phosphorus
0.040
Sulfur
0.030
Aluminum
0.15
Titanium
0.20 +4(C+N) min 1.10 max
* Maximum, unless range is indicated
Mechanical Properties Mechanical property requirements for annealed product as specified in ASTM A240 and ASME SA240
Property
439
Yield Strength, min. (ksi)
30
Tensile Strength, min. (ksi)
60
Elongation, min. (%)
22
Hardness, max. (Rb)
89
Physical Properties Physical properties for Type 439 stainless steel
Jiangsu Mittel Steel Industrial Limited is located in Wuxi City, a beautiful city near Shanghai. Wuxi is close to Shanghai (BAO STEEL) ,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy excellent geographic location and convenient water, land and air transporta... Jiangsu Mittel Steel Industrial Limited is located in Wuxi City, a beautiful city near Shanghai. Wuxi is close to Shanghai (BAO STEEL) ,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy excellent geographic location and convenient water, land and air transporta...
