304L is a variant of 304 stainless steel with a lower carbon content and is used where welding is required. The lower carbon content minimizes the precipitation of carbides in the heat-affected zone near the weld, which can lead to intergranular corrosion of stainless steels in some environments (weld attack)
Equivalent Grades
| Grade |
Euronorm |
China GB |
Japanese JIS |
| No. |
| 304L |
1.4307 |
00Cr19Ni10 |
SUS304L |
Standard Specification
| Diameter |
0.1mm-8.0mm |
| Length |
Customized as you wished |
| Cross-sectional shape |
Since the custom |
| Surface |
Polished, 2B, Mirror, Brush,etc |
| Finish |
Drawing, welding, drilling, forging, surface treatment, slitting |
| Application |
For automobiles, solar energy, metal products, household appliances, precision electronics, sanitary ware |
Composition content
| Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
| 304L |
Min.
Max. |
≤0.03 |
≤2.00 |
≤1.00 |
≤0.045 |
≤0.03 |
18.0～20.0 |
/ |
9.0-12.0 |
≤0.25 |
Tensile strength :520MPa
Yield strength :205MPa
Elongation :40%
Elastic modulus :29,000,000 psi is equivalent to: 203000MPa
Hardness requirement (Brinell hardness)
187 n/was (MPa).
Density :.280 LBS /cubic inch(density 7.93g/cm3)
Characteristic machining technology
1D -- The surface has discontinuous granular shape, also known as fog surface.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling.
2D - A slightly silvery white colour.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling.
2B -- Silver white with better gloss and flatness than a 2D surface.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + quenching and tempering rolling.
Ba - Excellent surface gloss, high reflectivity, like a mirror surface.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + surface polishing + quenching and tempering rolling.
No.3 -- Good gloss, coarse grain surface.
Processing technology: polishing and tempering rolling for 2D or 2B with 100~120 abrasive materials (JIS R6002).
No.4 -- Good gloss, fine lines on the surface.
Processing process: polishing and tempering rolling for 2D or 2B with 150~180 abrasive materials (JIS R6002).
HL -- Silver grey with hair streaks.
Processing technology: 2D products or 2B products with appropriate granularity of abrasive materials for polishing the surface is a continuous abrasive grain.
MIRRO -- Specular.
Processing technology: 2D products or 2B products with appropriate granularity of the grinding material grinding and polishing to the mirror effect.
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