304L is a variant of 304 stainless steel with lower carbon content and is used for welding applications. The lower carbon content minimizes carbides precipitation in the heat-affected zone near the weld, which can lead to interproduct corrosion (welding erosion) in stainless steel in some environments.
As a low C 304L steel, its corrosion resistance is similar to 304 steel under general conditions, but after welding or stress elimination, its resistance to grain boundary corrosion is excellent: without heat treatment, it can also maintain good corrosion resistance, using temperature -196℃~800℃. It is used for outdoor open-air machines in chemical, coal and petroleum industries with high requirements of grain boundary corrosion resistance, heat-resistant parts of building materials and parts with difficulty in heat treatment
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Thickness |
0.3-200mm |
Length: |
2000mm, 2438mm, 3000mm, 5800mm, 6000mm,12000mm, etc |
Width |
40mm-600mm, 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
Standard: |
ASTM,AISI,JIS,GB, DIN,EN |
Surface: |
BA,2B,NO.1,NO.4,4K,HL,8K |
Application: |
It is widely used in high-temperature and electric industry, medical devices, construction, chemistry, food industry, agriculture, and ship components. It also applies to food and beverage packaging, kitchen supplies, trains, aircraft, conveyor belts, vehicles, bolts, nuts, springs, and screen mesh etc. |
Certification: |
ISO, SGS,BV |
Technique: |
Cold Rolled Hot Rolled |
Edge: |
Mill Edge \ Slit Edge |
Grade (ASTM UNS) |
201,304,304L,321,316,316L,317L,347H,309S,310S,904L, S32205,2507,254SMOS,32760,253MA,N08926,etc |
序号 |
EN |
ASTM/UNS |
C |
N |
Cr |
Ni |
Mo |
成分 |
1 |
1.4301 |
304 |
0.04 |
|
18.1 |
8.3 |
|
|
2 |
1.4307 |
304L |
0.02 |
|
18.1 |
8.3 |
|
|
3 |
1.4541 |
321 |
0.04 |
|
17.3 |
9.1 |
|
Ti0.24 |
4 |
1.4550 |
347 |
0.05 |
|
17.5 |
9.5 |
|
Nb0.012 |
5 |
1.4401 |
316 S31608 |
0.04 |
|
17.2 |
10.2 |
2.1 |
|
6 |
1.4404 |
316L S31603 |
0.02 |
|
17.2 |
10.2 |
2.1 |
|
7 |
1.4406 |
316LN |
0.02 |
0.14 |
17.2 |
10.3 |
2.1 |
|
8 |
1.4429 |
S31653 |
0.02 |
0.14 |
17.3 |
12.5 |
2.6 |
|
9 |
1.4571 |
316Ti S31635 |
0.04 |
|
17 |
10.6 |
2.1 |
Ti0.30
|
10 |
1.4438 |
317L S31703 |
0.02 |
|
18.2 |
13.5 |
3.1 |
|