| Type |
Cr |
Ni |
Cmax |
Other Element |
Major Characteristics |
| 303 |
17.00 - 19.00 |
8.00 - 10.00 |
0.15 |
S 0.15 min |
† Free-machining modification of Type 302
|
| 303SE |
17.00 - 19.00 |
8.00 - 10.00 |
0.15 |
S 0.15 min |
† Free-machining version of Type 302. Produces better surface finish than Type 303.
|
| 304 |
18.00 - 20.00 |
8.00 - 10.00 |
0.08 |
-- |
† Low carbon variation of Type 302. Minimizes carbide precipitation during welding |
| 304L |
18.00 - 20.00 |
8.00 - 10.00 |
0.03 |
-- |
† Extra-low carbon content eliminates harmful carbide precipitation due to welding
|
| 309 |
22.00 - 24.00 |
12.00 - 15.00 |
0.20 |
-- |
†High strength and resistance to scaling at high temperatures
|
| 310 |
24.00 - 26.00 |
19.00 - 22.00 |
0.20 |
-- |
†Higher alloy content improves basic characteristics of Type 309
|
| 316 |
16.00 - 18.00 |
16.00 - 18.00 |
0.08 |
Mo 2.00 - 3.00 |
† Mo improves general corrosion and pitting resistance and high-temperature strength over that of Type 302 |
| 316L |
16.00 - 18.00 |
10.00 - 14.00 |
0.20 |
Mo 2.00 - 3.00 |
† Extra-low carbon version of Type 316. Eliminates harmful carbide precipitation due to welding
|
| 317 |
18.00 - 20.00 |
11.00 ' 15.00 |
0.08 |
Mo 3.00 - 4.00 |
† Higher alloy content improves basic advantages of Type 316
|
| 321 |
17.00 - 19.00 |
9.00 - 13.00 |
0.08 |
Ti 5 x C. min |
† Stabilized to permit use in 800-1500°F temperature range without harmful carbide precipitation |
| 347 |
17.00 - 19.00 |
9.00 - 13.00 |
0.08 |
Cb + Ta 10 xC. min |
† Characteristics similar to Type 321. Stabilized by Cb and Ta.
|
| 348 |
17.00 - 19.00 |
9.00 - 13.00 |
0.08 |
Ta 0.10 max CB 020 max CB+Ta 10 xC min
|
† Similar to Type 347 but Ta reduced for atomic energy applications
|
| 410 |
11.50 - 23.50 |
-- |
0.15 |
-- |
¥ Lowest cost general purpose stainless steel. Wide use where corrosion is not severe.
|
| 416 |
12.00 - 14.00 |
-- |
0.15 |
S 0.15 min |
¥ Free-machining version of Type 410.
|
| 420 |
12.00 - 14.00 |
-- |
0.15 min |
-- |
¥ Similar variation of Type 410 but higher carbon produces higher strength and hardness.
|
| 430 |
14.00 - 18.00 |
-- |
0.12 |
-- |
* Most popular of the chromium types. Combines good corrosion and heat resistance and mechanical properties. |
| 430F |
14.00 - 18.00 |
-- |
0.12 |
S 0.15 min
|
* Free-machining version of Type 430.
|
| 440A |
16.00 - 18.00 |
-- |
0.60 - 0.75 |
-- |
¥ Series of high carbon types. Some basic compositions with varying carbon content. Higher carbon produces higher strength and hardness but lower toughness. All Type 440 versions are corrosion-resistant only in hardened condition.
|
| 440B |
16.00 - 18.00 |
-- |
0.75 - 0.95 |
-- |
¥ Series of high carbon types. Some basic compositions with varying carbon content. Higher carbon produces higher strength and hardness but lower toughness. All Type 440 versions are corrosion-resistant only in hardened condition.
|
| 440C |
16.00 - 18.00 |
-- |
0.95 - 1.20 |
-- |
¥ Series of high carbon types. Some basic compositions with varying carbon content. Higher carbon produces higher strength and hardness but lower toughness. All Type 440 versions are corrosion-resistant only in hardened condition.
|
| 446 |
23.00 - 27.00 |
-- |
0.20 |
-- |
* Similar to Type 442 but Cr increased to provide maximum resistance to scaling.
|
| 15-5 PH |
14.00 - 15.50 |
3.50 - 5.50 |
0.07 |
Cu 2.50 - 4.50 |
• Similar in properties and characteristics to 17-4 PH but has superior transverse ductility and toughness.
|
PH 15-7 Mo
|
14.00 - 16.00 |
6.50 - 7.75 |
0.09 |
Mo 2.00 - 3.00 AI 0.75 - 1.50 |
•• Special type similar to 17-7 PH but with higher strength.
|
| 17-4 PH |
15.50 - 17.50 |
3.00 - 5.00 |
0.07 |
Cu 3.00 - 5.00 |
• Special type that combines excellent corrosion resistance…high strength and hardness… low-temperature hardening and good fabrication characteristics.
|
| 17-7 PH |
16.00 - 18.00 |
6.50 - 7.75 |
0.09 |
AL 0.75 - 1.25 |
•• Special ultra-high strength type with good formability and excellent fabricating characteristics.
|
