Equivalent Grade
|
US |
European Union |
ISO |
Japan |
China |
|||||
|
Standards |
Type |
Standards |
Grade (Steel Number) |
Standard |
Grade (ISO Number) |
Standard |
Grade |
Standards |
Grade |
|
AISI SAE; |
316L |
EN 10088-1; EN 10088-2; EN 10088-3 |
X2CrNiMo17-12-2 (1.4404) |
ISO 15510 |
X5CrNiMo17-12-2 (4404-316-03-I) |
JIS G4303 |
SUS316L |
GB/T 20878; |
00Cr17Ni14Mo2; |
The main difference between S31603 and SS316 stainless steel pipes is the carbon content and corrosion resistance.
Carbon content
S31603:The carbon content of S31603 stainless steel does not exceed 0.03%, which is an ultra-low carbon stainless steel.
SS316: The carbon content of SS316 (UNS S31600) is 0.08%.
Difference Between SS316 And SS316L - Chemical Composition
|
SS316 and SS316L Chemical Composition (%) |
|||||||||
|
UNS |
Grade |
C, ≤ |
Si, ≤ |
Mn, ≤ |
P, ≤ |
S, ≤ |
Ni |
Cr |
Mo |
|
UNS S31600 |
316 |
0.08 |
1.00 |
2.00 |
0.045 |
0.030 |
10.0-14.0 |
16.0-18.0 |
2.0-3.0 |
|
UNS S31603 |
316L |
0.03 |
1.00 |
2.00 |
0.045 |
0.030 |
10.0-14.0 |
16.0-18.0 |
2.0-3.0 |
|
AISI 316L (UNS S31603) Physical Properties |
|
|
Density, g/cm3 (lb/in.3) |
8.03 (0.29) |
|
Melting point, °C (°F) |
1375-1400 (2500-2550) |
|
Magnetic permeability |
1.02 (Approximate) |
Corrosion resistance
S31603: Due to its ultra-low carbon content, S31603 performs well in various corrosive environments, especially with strong resistance to chloride pitting. It is suitable for corrosive environments such as chemical, petroleum and marine fields.
SS316: Although SS316 also has good corrosion resistance, S31603 has better corrosion resistance in highly corrosive environments, especially in welds and heat-affected zones, where S31603 can better resist intergranular corrosion.
Application areas
S31603: Widely used in chemical, petroleum, marine and other fields due to its excellent corrosion resistance and good processing performance.
SS316: Also commonly used in these fields, but may require more frequent maintenance and replacement in highly corrosive environments.
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