What is 304H stainless steel?
Alloy 304/304H (UNS S30400/ S30409) is a modification of the most widely utilized “18-8” chromium-nickel austenitic stainless steel. It is an economical and versatile corrosion resistant alloy suitable for a wide range of general purpose applications. It is common practice for 304H to be dual certified as 304 and 304H.
What is the difference between 304 and 304H?
Heat Resistance Grade 304L is resistant to carbide precipitation and can be heated into this temperature range. Grade 304H has higher strength at elevated temperatures so is often used for structural and pressure-containing applications at temperatures above about 500°C and up to about 800°C.
What does the H stand for in 304H?
The “H” in 304H stands for “High” carbon content. 304H must contain not less than 0.04 percent carbon, nor more than 0.10 percent. The higher carbon content of 304H increases its strength, so the ASTM tensile and yield strength of 304H is greater than 304L.
Is 302 stainless the same as 304?
The chemistry of the alloys i.e. austenitic stainless steel grade 302 and grade 304 are almost similar. The only difference in their chemistry is the higher content of carbon, which gives grade 304 better hardness.
What is the L in 304L stainless steel?
extra-low carbon
The “L” in 304L can be interpreted as meaning extra-low carbon. This difference of 0.05% carbon content produces a slight, but marked, difference in the performances of the two alloys.
What does the L mean in stainless steel?
carbon
316/316L Stainless Steel: The ‘L’ Designation The L denotes the low content of carbon in the steel. The low carbon content of 316L provides an effective solution to this widespread engineering problem of 316 stainless steel.
What is the L in stainless steel?
316L
A. The “L” at the end of Type 300 series stainless steel grades (i.e. Type 316L) signifies “low carbon.”
Is 304 or 302 steel better?
Both the materials are austenitic stainless steels with non-magnetic properties. The 302 material has higher carbon content compared to the 304 which makes it tougher than 304. While the 302 is more tough and stronger, the 304 material is more ductile.
Can grade 304 stainless steel be used outside?
Marine grade stainless steel is the recommended outdoor cabinetry material for all coastal areas. However, in other environments, such as the desert, the mountains, a city rooftop or simply – your home, 304 works just fine.
Which is better 304L or 316L?
Because of the presence of molybdenum, type 316L steel provides superior resistance to corrosion as compared to type 304L, especially in briny, salty seawater. Type 316L shows better resistance to corrosion caused by de-icing salts as compared to type 304L steel.
Is 304 better than 304L?
Type 304 and 304L have very similar chemical and mechanical properties. The only difference between them is the carbon content; the 304 stainless steel has a maximum range of carbon of 0.08% whereas the 304L has a maximum range of 0.03%. As a result, it significantly reduces corrosion resistance of steel in this zone.