304, 304L, 304H, 316, 316L, 316H, 321, 321H, 347, 347H, 317L
Our Chrome Alloy inventory is unsurpassed and is considered one of the most extensive chrome inventories in the world!
Turnarounds or outages, planned retrofits or emergency situations, grassroots projects worldwide; U.S. Metals has the experienced staff to assist you on all of your specialty alloy requirements, no matter how detailed the specification, no matter how difficult the situation.
New industry requirements, not an issue. We work closely with agencies like EPRI along with our utility and refining clients to be on the cutting edge of new industry requirements that affect your high energy/high temperature piping systems.
Our inventory is evolving to meet the new specifications that prevent current issues as creep cracking and hardness problems.
| Trade Name |
304
|
304L
|
304H
|
316
|
316L
|
316H
|
321
|
321H
|
347
|
347H
|
317L
|
| UNS # |
S30400
|
S30403
|
S30409
|
S31600
|
S31603
|
S31609
|
S32100
|
S32109
|
S34700
|
S34709
|
S31703
|
| Trade Name |
1 1/4 Chrome
|
2 1/4 Chrome
|
5 Chrome
|
9 Chrome
|
91
|
92
|
|
A182
|
A182
|
A182
|
A182
|
A182
|
A182
|
|
| Ident Symbol |
F11
|
F22
|
F5
|
F9
|
F91
|
F92
|
| Class 1 / UNS # |
K11597
|
K21590
|
K41545
|
K90941
|
K90901
|
K92460
|
| Class 2 / UNS # |
K11572
|
----
|
----
|
----
|
----
|
----
|
| Class 3 / UNS # |
K11572
|
K21590
|
----
|
----
|
----
|
----
|
| Trade Name |
1 1/4 Chrome
|
2 1/4 Chrome
|
5 Chrome
|
9 Chrome
|
91
|
92
|
|
A217
|
A217
|
A217
|
A217
|
A217
|
----
|
|
| Grade |
WC6
|
WC9
|
C5
|
C12
|
C12A
|
----
|
| UNS # |
J12072
|
J21890
|
J42045
|
J82090
|
J84090
|
----
|
| Trade Name |
1 1/4 Chrome
|
2 1/4 Chrome
|
5 Chrome
|
9 Chrome
|
91
|
92
|
| Chrome Alloy Plate |
A387
|
A387
|
A387
|
A387
|
A387
|
A387
|
| Grade |
11
|
22
|
5
|
9
|
91
|
----
|
| Class 1 / UNS # |
K11789
|
K21590
|
S50200
|
K90941
|
----
|
----
|
| Class 2 / UNS # |
K11789
|
K21590
|
S50200
|
K90941
|
K90901
|
----
|
| Trade Name |
1 1/4 Chrome
|
2 1/4 Chrome
|
5 Chrome
|
9 Chrome
|
91
|
92
|
| Chrome Alloy Bar |
A182
|
A182
|
A182
|
A182
|
A182
|
A182
|
| Grade |
F11
|
F22
|
F5
|
F9
|
F91
|
----
|
| UNS # |
----
|
----
|
----
|
----
|
----
|
----
|
Information provided in this page is in accordance with the 2013 Edition of the ANNUAL BOOK OF ASTM STANDARDS.
Refer to ASME B & PV Section II for non-identical A/SA requirements
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