C93700 SAE 64 Bearing Bronze / C937 Bronze

C93700 SAE 64 Bearing Bronze is a good general bearing material. Alloy C937 is known for it's corrosion resistance to mildly acidic mine waters and paper mill sulfite. The addition of lead to this alloy makes it easy to machine. C93700 has a machinability rating of 80. C93700 is a non stocking alloy for National Bronze Mfg. and may be substituted by C93200 SAE660. National Bronze Mfg. can supply C93700 SAE 64 in larger lot sizes and where additional lead time is not a critical factor.

Shapes

Applications

• Crankshafts
• Bearing Plates
• Bushings
• Applications Requiring Corrosion Resistance
• Impellers
• Washers
• Slide Guides
• General Bearings

Specifications

.Chemical Composition

	Cu	Al	Sb	Fe(1)	Pb	Ni(2)	P(3)	Si	S	Sn	Zn
Min./Max.	78.0-82.0	.005	.50	.7	8.0-11.0	.50	.10	.005	.08	9.0-11.0	.8
Nominal	80.0	-	-	-	9.5	-	-	-	-	10.0	-

Mechanical Properties

Temper	Section Size	Cold Work	Typ/ Min	Temp	Tensile Strength	Yield Strength (0.5% ext. under load)			El	Rockwell Hardness					Brinell Hard.		Shear Strength	Fatigue Strength*
	in.	%		F	ksi	ksi			%	B	C	F	30T		500	3000	ksi	ksi
	mm.			C	MPa	MPa											MPa	MPa
As Sand Cast
M01	0.0	0	TYP	68	35	18			20	-	-	-	-		60	-	18	13
	0.0			20	241	124			20	-	-	-	-		60	-	124	90
As Centrifugal Cast
M02	0.0	0	SMIN	68	30	12			15	-	-	-	-		-	-	-	-
	0.0			20	207	83			15	-	-	-	-		-	-	-	-
As Continuous Cast
M07	0.0	0	SMIN	68	35	20			6	-	-	-	-		-	-	-	-
	0.0			20	241	138			6	-	-	-	-		-	-	-	-
As Sand Cast
M01	0.0	0	SMIN	68	30	12			15	-	-	-	-		-	-	-	-
	0.0			20	207	83			15	-	-	-	-		-	-	-	-