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Chemical Composition


Austenitic Stainless Steels
GRADE TP 304/304L TP 316/316L TP 317/317L TP 321 TP 310S
UNS No. S30403 S31603 S31703 S32100 S31008
Carbon 0.03 max. 0.03 max. 0.03 max. 0.08 max. 0.08 max.
Manganese 2.00 max. 2.00 max. 2.00 max. 2.00 max. 2.00 max.
Phosphorus 0.040 max. .040 max. .040 max. .040 max. .040 max.
Sulfur 0.030 max. .030 max. .030 max. .030 max. .030 max.
Silicon 0.75 max. 0.75 max. 0.75 max. 0.75 max. 1.50 max.
Chromium 18.00 min. / 20.00 max. 16.00 min. / 18.00 max. 18.00 min. / 20.00 max. 17.00 min. / 19.00 max. 24.00 min. / 26.00 max.
Nickel 8.00 min. / 12.00 max. 10.00 min. / 14.00 max. 11.00 min. / 15.00 max. 9.00 min. / 12.00 max. 19.00 min. / 22.00 max.
Molybdenum *** 2.00 min. / 3.00 max. 3.00 min. / 4.00 max. *** ***
Nitrogen 0.10 max. .10 max. .10 max. .10 max. ***
Copper *** *** *** *** ***
Others *** *** *** *** ***



Other Alloys
GRADE 29Cr - 4Mo Steel 6-Moly* Alloy 400 Alloy 625 Alloy 825
UNS No. S44735 N08367 N04400 N06625 N08825
Carbon 0.03 max. 0.03 max. 2.00 max. 0.10 max. 0.05 max.
Manganese 1.00 max. 2.00 max. 0.30 max. 0.50 max. 1.00 max.
Phosphorus
0.040 max. 0.040 max. *** 0.015 max. ***
Sulfur 0.030 max. 0.030 max. 0.024 max. 0.015 max. 0.030 max.
Silicon 1.00 max. 1.00 max. 0.50 max. 0.50 max. 0.50 max.
Chromium 28.00 min. / 30.00 max. 20.00 min. / 22.00 max. *** 20.00 min. / 23.00 max. 19.50 min. / 23.50 max.
Nickel 1.00 max. 23.50 min / 25.50 max. 63.0 min. 58.0 min. 38.00 min. / 46.00 max.
Molybdenum 3.60 min / 4.20 max. 6.00 min / 7.00 max. *** 8.0 min 2.50 min / 3.50 max.
Nitrogen 0.045 max. 0.18 min /0.25 max. *** *** ***
Copper *** 0.75 max. 28.0 min / 34.0 max. *** 1.50 min / 3.00 max.
Others Ti+Cb = 0.20 min. / 1.00 max. and 6(C+N) min. Fe remainder Fe 2.50 max. (Cb+Ta)= 3.15 min. / 4.15 max. , Co 1.0 max., Fe 5.0 max. AI 0.40 max. Ti 0.40 max. AI 0.2 max., Fe 22.0 min.
           
    * Other 6-Moly Chemistries Available      



Other Alloys
GRADE Duplex Alloy 19D Duplex Alloy 2205 Super Duplex Alloy 2507
UNS No. S32001 S31803 S32750
Carbon 0.030 max. 0.03 max. 0.030 max.
Manganese 4.0 min. / 6.0 max. 2.00 max. 1.20 max.
Phosphorus 0.040 max. 0.030 max. 0.035 max.
Sulfur 0.030 max. 0.020 max. 0.020 max.
Silicon 1.00 max. 1.00 max. 0.80 max.
Chromium 19.50 min. / 21.50 max. 21.00 min. / 23.00 max. 24.00 min. / 26.00 max.
Nickel 1.00 min. / 3.00 max. 4.50 min. / 6.50 max. 6.00 min / 8.00 max.
Molybdenum 0.600 max. 2.50 min. / 3.50 max. 3.50 min / 5.00 max.
Nitrogen 0.050 min. / 0.170 max. .08 min. / .20 max. 0.24 min / 0.32 max.
Copper 1.00 max. *** 0.50 max.
Others *** *** ***