Alloy 430/ 30F/430F Se-SS Weldability

Stainless Steel Grade 430 has to be pre-heated at 150-200°C (302-392°F), to perform any welding process. The particular area can be post-weld annealed at 790-815°C (1454-1499°F), in case of embrittlement in the welded metal; however grain refinement will not happen. It is recommended that grade 430, 308L, 309 or 310 filler rod should be utilized based on the application. Alloy 430F / 430F SE is not recommended for welding because of its high sulfur content. If welding is necessary, for best results utilize low heat settings and filler metal of AWS E/ER 430.

Applications
For 430 grade:

• Automotive and architectural trim
• Vaults
• Heat exchangers
• Scientific apparatus
• Vending machine components

For 430F & 430F SE grade:

• Not to be used for containing high pressure gas or liquid due to its porosity.
• Successfully used in a variety of aircraft parts including fasteners, gears, shafts and pinions.

Chemical Composition %

Grade	C	Si	P	S	Cr	Mn	Se	Fe
430	0.12 max	1.0 max	0.40 max	0.3 max	16.0 - 18.0	1.0 max	-	Remainder
430F	0.12 max	1.0 max	0.06 max	0.15 min	16.0 - 18.0	1.25 max	-	Remainder
430F SE	0.12 max	1.0 max	0.06 max	0.06 max	16.0 - 18.0	1.25 max	0.15 min	Remainder