ALLOY /

SAMPLES OF COMMON CASTING GRADE MATERIAL USED BY HARBOR CASTINGS

Cobalt & Nickel Base

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CARBON STEEL ALLOY / SPECIFICATION	ANNEALED	HARDENED	CHARACTERISTICS
1010 / IC 1010	50-55 Rb	N/A	Electrical applications
1018 / IC 1018	65-80 Rb	N/A	Carburizing steel for general applications
IC1020 /ASTM A732 GR. 1A	80 Rb	N/A	Inexpensive with wide range of applications
IC1030 /ASTM A732 GR. 2A,2Q	75 Rb	20-50Rc	Hardenable / Medium strength
IC1040 /ASTM A732 GR. 3A,3Q	85 Rb	22-51 Rc	Hardenable / Medium strength
1045 / IC 1045	100 Rb	25-57 Rc	Hardenable / Medium strength
IC1050 /ASTM A732 GR. 4A,4Q	100 Rb	30-60 Rc	Hardenable / Medium strength
1060 / IC 1060	100 Rb	33-60 Rc	Hardenable / Medium strength

ALLOY STEEL ALLOY / SPECIFICATION	ANNEALED	HARDENED	CHARACTERISTICS
IC4130 /ASTM A732 GR. 7Q	100 Rb	23-49 Rc	Stuctural applications / Good weldability
IC4140 /ASTM A732 GR. 8Q	100 Rb	29-57 Rc	Good toughness / Fatigue resistance
IC4340 /ASTM A732 GR. 10Q	20 Rc	20-55 Rc	High strength / Fatigue resistance
IC4620 /ASTM A732 GR. 11Q	100 Rb	20-32 Rc	General application / carburizing
IC6150 /ASTM A732 GR. 12Q	100 Rb	30-60 Rc	High abrasion & shock resistance
IC8620 /ASTM A732 GR. 13Q	100 Rb	20-45 Rc	Carburizing used for gears, crankshafts etc..
IC8630 /ASTM A732 GR. 14Q	100 Rb	25-50 Rc	Often used for machine parts
IC52100 /ASTM A732 GR. 15A	25 Rc	30-65 Rc	High carbon / Good abrasion resistance
9310 / SAE 9310	100 Rb	24-43 Rc	Similar to 8620 / Good core hardness

AUSTENITIC STAINLESS ALLOY / SPECIFICATION	ANNEALED	HARDENED	CHARACTERISTICS
303 / CF16	90 Rb	N/A	Corrosion resistant / Good machinability
304 / CF8	90 Rb	N/A	Better corrosion resistance
310 / HK	90 Rb	N/A	Good heat resistance
316 / AMS 5360 CF8M	90 Rb	N/A	Very good corrosion resistance
330 / HT	90 Rb	N/A	Very good heat resistance /Resists thermal shock
347 / CF8C	90 Rb	N/A	Good corrosion resistance

HARDENABLE STAINLESS ALLOY / SPECIFICATION	ANNEALED	HARDENED	CHARACTERISTICS
17-4 / AMS 5355	36 Rc	34-44 Rc	Corrosion resistant / Machinable
410 / CA15	100 Rb	94 Rb-45 Rc	Good hardness and corrosion resistance
416 / AMS 5349 IC 416	100 Rb	94 Rb-45 Rc	Better machinability than 410
420 / ASTM A743 IC 420	25 Rc	30-52 Rc	Higher hardness
440C / AMS 5352 IC 440C	35 Rc	40-60 Rc	Good toughness / Higher hardness

COBALT & NICKEL BASE ALLOY / SPECIFICATION	ANNEALED	HARDENED	CHARACTERISTICS
Cobalt-6 / AMS 5387 - 5373	37-45 Rc (as cast)	N/A	Heat and corrosion resistant
Ni Alloy C / ASTM A494	90 Rb (as cast)	N/A	Heat and corrosion resistant

TOOL STEEL ALLOY / SPECIFICATION	ANNEALED	HARDENED	CHARACTERISTICS
A-2 / CA-2	20 Rc	47-60 Rc	Medium machinability,toughness & wear resistance
D-2 / CD-2	35 Rc	50-59 Rc	Very good wear resistance / Lower machinability & toughness
H-13 / CH-13	100 Rb	45-53 Rc	Medium machinability & wear resistance Very good toughness
O-1 / CO-1	100 Rb	45-61 Rc	Medium toughness & wear resistance Good machinability
O-2 / CO-2	100 Rb	38-60 Rc	Medium toughness & wear resistance Good machinability
S-5 / CS-5	100 Rb	37-59 Rc	Medium machinability / Low wear resistance Very good toughness
S-7 / CS-7	100 Rb	35-57 Rc	Medium machinability / Low wear resistance Very good toughness

NON-FERROUS ALLOY / SPECIFICATION	TENSILE STRENGTH (psi)	YIELD STRENGTH (psi)	CHARACTERISTICS
Aluminum Alloy / A356 ASTM B26	38-48,000	28-36,000	Good castability, weldability and corrosion resistance
Tenzaloy / 713 ASTM B26	35,000 as cast Typical	26,000 as cast Typical	Good strength without heat treat / Excellent machinability / ages in 21 days
Aluminum Bronze / 954 ASTM B148	75-85,000 as cast 90-105,000 H.T.	30-40,000 as cast 45-55,000 H.T.	Good corrosion resistance / Heat Treatable
Silicon Bronze / 872 ASTM B763	55-65,000	22-30,000	Good corrosion resistance / Fair castability

The values listed are for informational purposes only.
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