STAINLESS STEEL
SPECIALTY ALLOYS

C

Cr

Ni

OTHER (max)

MAGNETIC
YES - NO

AVAILABLE FORMS

GREEK
ASCOLOY TYPE 418

SIMILAR TO TYPE 410 SS BUT MODIFIED WITH NICKEL & TUNGSTEN TO IMPROVE HIGH TEMPERATURE PROPERTIES.

.15
.20

12.0-14.0

1.8-2.2

Mo .5 P .06
Cu .5 Sn .05
w 2.5-3.5

YES

SHEET
BAR
FORGINGS

ALLOY
20
(20Cb3)

A HIGHLY CORROSION RESISTANT SS USED IN THE CHEMICAL INDUSTRY WHERE CORROSION RESISTANCE IS CRITICAL. SUPERIOR TO GENERAL 300 SERIES SS.

.07

19.0-21.0

32.0-38.0

Mo 2.0-3.0
Cu 3.0-4.0
(Cb+Ta) 1.MX
Fe BAL

NO

SHEET STRIP PLATE
BAR WIRE
FORGINGS

253MA

AN ADVANCED HEAT RESISTING ALLOY PROVIDING OUTSTANDING OXIDATION RE- SISTANCE AND HI-TEMPERATURE STRENGTH

08

21.0

11.0

Fe 66.3
Mn .3 N .17
Ce .04

NO

SHEET PLATE
STRIP BAR

DUPLEX
255
FERRALIUM

EXCELLENT COMBINATION OF STRENGTH AND CORROSION RESISTANCE. TWICE THE STRENGTH OF T 316 SS. THIS ALLOY IS BOTH FERRITIC & AUSTENITIC.

.025

21.5-22.5

5.2-5.9

Mo 2.8-3.2
N .08-.20

YES

ROUND BAR

DUPLEX
2205

SIMILAR TO 255. MAINTAINS GOOD TOUGHNESS & CORROSION RESISTANCE AFTER WELDING. IT IS 50% FERRETIC AND 50% AUSTENITIC.

.04

24.0-27.0

4.5-6.5

Mo 2.9-3.9
Mn 2. Su.045
Cu 1.5-2.5
N .08-.20

YES

SHEET BAR
PLATE FORGINGS

CUSTOM
455

GOOD CORROSION RESISTANCE TO ATMOS- PHERIC ENVIRON. SOFT AND FORMABLE. A SINGLE STEP AGING TREATMENT GIVES EXCEPTIONALLY HIGH YIELD STRENGTH. MARTENSITIC.

.05

11.0-12.5

7.9-9.5

Co+Ta
.10-.50
Ti .80-1.40
Cu 1.5-2.5
Mo .5 Mn .05

YES

BAR
FORGINGS

904L

HAS CORROSION RESISTANT PROPERTIES THAT ARE SUPERIOR TO CONVENTIONAL ACID-RESISTANT SS. GOOD FORMING, WELDING & STRENGTH. AUSTENITIC.

.02

20.0

25.0

MO 4.5
Mn 1.7
Cu 1.5
Si .4

NO

SHEET PLATE
BAR WIRE
FORGING CASTINGS

501HT

HEAT TREATED. GOOD STRENGTH. USED FOR BOLTS. GOOD AT HI-TEMPERATURES BOTH FERRITIC & AUSTENITIC.

0.1
MIN

4.0-6.0

Mo .40-.50
Mn 1.0 S .30
Si 1.00

NO

ROUND BAR