Stainless Steel 317/317L

Stainless Steel 317/317L

Grade 317 stainless steel is a modified version of 316 stainless steel. It has high strength and corrosion resistance.They consist about 4-30% of chromium. They are classified into martensitic, austenitic, and ferritic steels based on their crystalline structure.

Application Industries

These materials are not a single material but the name for a family of corrosion resistant steels. Like many scientific breakthroughs, the origins of stainless steel lies in a lucky accident. From the smallest part of the zipper to the largest building skyscraper.
Metal fabrication is widely used across various industrial sectors such as mining, construction, manufacturing, shipbuilding, automotive, aerospace, and energy.

Chemical Composition

Grade


C
Mn
Si

P

S
Cr
Mo

Ni

N
317

min.

-
-

-

-
18.0
3.0-4.0

11.0
-

max.

0.08

2.0

1.0

0.040

0.030

20.0

14.0

-

317L

min.

-
-
-

-

-
16.0
3.0-4.0
11.0
-
max.

0.08

2.0

1.0

0.040

0.030

18.0

15.0

-

Equivalent Grade

Standard
WERKSTOFF NR.
UNS
JIS

BS

GOST

AFNOR 
EN

SS 317
1.4449
S31700
SUS 317

-

-
-
-

SS 317L

1.4438
S31703
SUS 317l
-
-
-
-
-
-
×