Alloy Iron
				AUSTENITIC GRAY IRON ASTM A-436 Type 1 AMS 5392K ASTM A-436 Type 1B ASTM A-436 Type 2 ASTM A-436 Type 2B ASTM A-436 Type 3 ASTM A-436 Type 4 ASTM A-436 Type 5 ASTM A-436 Type 6 AUSTENITIC DUCTILE IRON ASTM A-439 Type D2 AMS 5394B ASTM A-439 Type D-2B ASTM A-439 Type D-2C AMS 5395B ASTM A-439 Type D3 ASTM A-439 Type D-3A ASTM A-439 Type D4 ASTM A-439 Type D5 ASTM A-439 Type D-5B ASTM A-439 Type D-5S ABRASION RESISTANT IRONS (NI HARD) ASTM A-532 1-A ASTM A-532 1-B ASTM A-532 1-C ASTM A-532 1-D ASTM A-532 2-A ASTM A-532 2-B ASTM A-532 2-C ASTM A-532 2-D ASTM A-532 3-A