C90700 Tin Bronze, SAE 65 (CDA 907)

C90700 (CDA 907) is a high-strength bronze casting alloy from India, ideal for heavy-duty components in marine and industrial environments. Conex Metals is your trusted source for C90700 Tin Bronze, SAE 65, offering solids and made-to-order castings in both centrifugal (ASTM B271) and sand (ASTM B584) casting methods. We provide both off-the-shelf and special casting options to meet your specific needs. Our expert team will determine the optimal casting method based on your size, specification, and desired quantity.

C90700 Tin Bronze is a versatile alloy used in various demanding applications, including:

• Gears: Due to its high strength and wear resistance, C90700 is suitable for manufacturing gears that need to withstand significant mechanical stress and friction.
• Worm Gears: The alloy’s high strength and excellent wear resistance make it ideal for worm gears, which are used in applications requiring high torque and smooth motion.
• Bearing Bushings: The alloy’s good lubricity and resistance to galling make it ideal for bearing bushings, which require low friction and durability to function efficiently over time.
• Valve Components: C90700’s corrosion resistance and durability are beneficial for valve components, which must withstand various fluid environments and pressures without degrading.

Trust Conex Metals to deliver high-quality C90700 Tin Bronze products that meet your exact specifications.

C90700 Tin Bronze Chemical Composition:
(%max., unless shown as range or min.)

Bronze Chemical Composition
	Cu(1)	Si	S	Sn	Zn	Sb	Al	Fe	Pb	Ni(2)	P(3)
Min./Max.	88.0-90.0	0.005	0.05	10.0-12.0	0.5	0.2	0.005	0.15	0.5	0.5	0.3
Nominal	89	-	-	11	-	-	-	-	-	-	-

(1) In determining Cu min., Cu may be calculated as Cu + Ni.
(2) Ni value includes Co.
(3) For continuous castings, P shall be 1.5%, max.
Note: Cu + Sum of Named Elements, 99.4% min.

C90700 Mechanical Properties
(measured at room temperature, 68 F (20 C)

C90700 Mechanical Properties
Temper	Section Size	Cold Work	Rockwell Hardness				Vickens Hard.	Brinell Hard.		Shear Strength	Fatigue Strength*	Izod Impact Strength	Yield Strength (0.5% ext. under load)	Yield Strength (0.2% offset)	Yield Strength (0.05% offset)	Typ/ Min	Temp	Tensile Strength	El
	in.	%	B	C	F	30T	500	500	3000	ksi	ksi	ft-lb	ksi	ksi	ksi		F	ksi	%
	mm.									MPa	MPa	J	MPa	MPa	MPa		C	MPa
As Sand Cast
M01	0	0	-	-	-	-	-	80	-	-	25	0	22	-	-	TYP	68	44	20
	0		-	-	-	-	-	80	-	-	172	0	152	-	-		20	303	20
M01	0	0	-	-	-	-	-	65	-	-	-	0	17	-	-	SMIN	68	35	10
	0		-	-	-	-	-	65	-	-	-	0	117	-	-		20	241	10
As Centrifugal Cast
M02	0	0	-	-	-	-	-	102	-	-	-	0	30	-	-	TYP	68	55	16
	0		-	-	-	-	-	102	-	-	-	0	207	-	-		20	379	16
As Continuous Cast
M07	0	0	-	-	-	-	-	-	-	-	-	0	25	-	-	SMIN	68	40	10
	0		-	-	-	-	-	-	-	-	-	0	172	-	-		20	276	10
As Permanent Mold Cast
M05	0	0	-	-	-	-	-	102	-	-	-	0	30	-	-	TYP	68	55	16
	0		-	-	-	-	-	102	-	-	-	0	207	-	-		20	379	16
As Centrifugal Cast
M02	0	0	-	-	-	-	-	95	-	-	-	0	28	-	-	SMIN	68	50	12

*Fatigue Strength: 100 x 10 ⁶cycles,
unless indicated as [N]X 10⁶.

C90700 Applicable Specifications

C90700 Applicable Specifications
Product	Specification
Ingot	ASTM B30
Sand	ASTM B427
	SAE J461, J462
Centrifugal	ASTM B427
	SAE J462, J461
Continuous	ASTM B505
	SAE J461, J462