304 304L stainless steel pipe seamless Bright large diameter
Product Description:
Standard: ASTM A249, ASTM A268, ASTM A269, ASTM A312, etc.
Material: 304,304L.
Specification:
Outer diameter: 1.0-1220mm (1/8”-48”)
Wall thickness: 0.1-150mm (SCH 5S- XXS)
Length: 3m, 5.8m, 6m, 11.8m, or as request.
Surface: Pickled, annealed, polished, bright, sand blast, hair
line, etc.
Chemical Composition Compared:
| Composition Table | Grade 304 SS Chemical Content by % | Grade 304L SS Chemical Content by % |
| Carbon | 0.08 Max | 0.03 Max |
| Chromium | 18.00-20.00 | 18.00-20.00 |
| Iron | Makes up the Balance | Makes up the Balance |
| Manganese | 2.00 Max | 2.00 Max |
| Nickel | 8.00-12.00 | 8.00-12.00 |
| Nitrogen | 0.10 Max | 0.10 Max |
| Phosphorus | 0.045 Max | 0.045 Max |
| Silicon | 0.75 Max | 0.75 Max |
| Sulfur | 0.030 Max | 0.030 Max |
Why Would You Want to Use 304L, Then?
So, if 304L is weaker than standard 304 stainless steel, why would
anyone want to use it?
The answer is that the 304L alloy’s lower carbon content helps
minimize/eliminate carbide precipitation during the welding
process. This allows 304L stainless steel to be used in the
“as-welded” state, even in severe corrosive environments.
If you were to use standard 304 stainless in the same way, it would
degrade much faster at the weld joints.
Basically, using 304L eliminates the need to anneal weld joints
prior to using the completed metal form—saving time and effort.
In practice, both 304 and 304L can be used for many of the same
applications. The differences are often minor enough that one isn’t
considered massively more useful over the other. When stronger
corrosion resistance is needed, other alloys, such as grade 316
stainless steel, are usually considered as an alternative.
Product Photos:
