SS 304 / 304L REFRACTORY ANCHOR
Back To Alloys
Stainless Steel Grade 304 and 304L
is the standard 18/8 (18% chrome, 8% nickel) austenitic stainless steel. It is a non-magnetic alloy in the annealed condition, however, becomes magnetic as it is cold worked.
It is the most ordinarily utilized of all stainless grades. T304 can be effortlessly welded and is the preferred for many deep drawn, spun or formed parts due to its high ductility. 304L has oxidation resistance to a maximum temperature of 1650°F (899°C) continuous without considerable scaling. The maximum temperature for intermittent presentation is 1500°F (816°C). Since 304L is an additional low-carbon variety of 304 it can frequently be utilized in the “as-welded” condition (without annealing), even in severe corrosive conditions, except for applications indicating stress relief. 304L has good welding qualities and can be welded by all standard strategy; however, consideration should be paid to maintain a strategic distance from weld “hot cracking”. To relieve stress during severe forming or spinning welding may be followed by annealing.
Chemical Composition
Grade | C | N | Si | P | S | Cr | Mn | Ni | Fe |
304 | 0.08 max | 0.10 max | 0.75 max | 0.045 max | 0.030 max | 18.0 - 20.0 | 2.0 max | 8.0 - 10.5 | Remainder |
304L | 0.03 max | 0.10 max | 0.75 max | 0.045 max | 0.030 max | 18.0 - 20.0 | 2.0 max | 8.0 - 12.0 | Remainder |
Melting Range
Grade | Melting Range |
304 |
1399 - 1454°C |
304L |
1399 - 1454°C |