High Leaded Tin Bronze

KP Bronze – Cast Raw Materials

C93200/SAE 660 - Typical Uses

Characteristics:
Good hardness, strength and wear resistance; excellent antifriction qualities; good casting and excellent machining properties; can be readily broached or reamed.

Uses:
Currently the standard coast-bronze bearing material; general utility applications for medium loads and speeds; electric-motor bushings; spring-shackle bushings; torque-tube bushings; bushings for automotive generators, distributors and starters; motorcycle-engine bearings; sleeve bushings for cranes and draglines; track-roller bushings for crawler tractors; guide bushings for valves, rams and piston rods; camshaft bushings for tractor engines; roller bushings for conveyors; main bearings for presses; mechanical linkage bushings for farm and material-handling equipment; spindle bushings for farm equipment and trucks.

Mechanical Properties
M07 - AS CONTINUOUS CAST		US Customary	Metric
Tensile Strength	Minimum	35 ksi	241 MPa
Yield Strength
0.5% Ext. under load	Minimum	20 ksi	138 MPa
Elongation	Minimum	10 %, in 2 in.	10 %, in 51 mm

C93400 - Typical Uses

Bearings and Bushings
Washers

Mechanical Properties
M07 - AS CONTINUOUS CAST		US Customary	Metric
Tensile Strength	Minimum	34 ksi	234 MPa
Yield Strength
0.5% Ext. under load	Minimum	20 ksi	138 MPa
Elongation	Minimum	8 %, in 2 in.	8 %, in 51 mm

C93500/SAE 66 - Typical Uses

Backing for Babbitt Lined Automotive Bearings
Bearings and Bushings, Small
Mildly Acidic Applicables

Mechanical Properties
M07 - AS CONTINUOUS CAST		US Customary	Metric
Tensile Strength	Minimum	30 ksi	207 MPa
Yield Strength
0.5% Ext. under load	Minimum	16 ksi	110 MPa
Elongation	Minimum	12 %, in 2 in.	12 %, in 51 mm

C93600 - Typical Uses

Bearings and Bushings

Mechanical Properties
M07 - AS CONTINUOUS CAST		US Customary	Metric
Tensile Strength	Minimum	33 ksi	227 MPa
Yield Strength
0.5% Ext. under load	Minimum	20 ksi	138 MPa
Elongation	Minimum	10 %, in 2 in.	10 %, in 51 mm

C93700/SAE 64 - Typical Uses

Characteristics:
Good strength; low thermal conductivity compared to high-tin bronzes; generally high physical properties combined with fairly good bearings qualities; corrosion resistant to mild acids as found in mine water, good resistance to mineral waters or paper-mill sulfite liquor; excellent wear resistance under conditions of high speed, heavy pressure, shock and vibration; low friction; good machining and fair casting properties; can be used where lubrication is doubtful; requires hardened shaft, maximum shaft surface speed can be 800-1000 fpm.

Uses:
Heavy loads and high speeds; backings for Babbitt-lined bearings; wrist-pin and valve rocker arm bushings; fuel and water-pump bushings, aircraft control bushings, electic-motor bushings, steering knuckle bushings; track-roller bushings; crankshaft bearings for outboard motors, power lawn mowers and garden tractors; gear bushings for farm equipment, reducers and motorcycles; cam bushings for mechanical devices; farm equipment and diesel engines; piston pins for packaging equipment and diesel engines; linkage bushings for presses; roll-neck bearings, lathe bearings; Babbitt-lined armature bearings for electrical locomotives; railroad-car bearings; rolling-mill bearings; trunion bearings, impellers; pumps.

Mechanical Properties
M07 - AS CONTINUOUS CAST		US Customary	Metric
Tensile Strength	Minimum	35 ksi	241 MPa
Yield Strength
0.5% Ext. under load	Minimum	20 ksi	138 MPa
Elongation	Minimum	6 %, in 2 in.	6 %, in 51 mm

C93800/SAE 67 - Typical Uses

Characteristics:
Fair strength, corrosion resistant to sea water and brine, resistant to certain concentrations of sulfuric acid and acids in mine waters; fair wear resistance; excellent antifriction qualities, nonseizing; good machining and casting properties; can be used where lubrication is doubtful.

Uses:
General service material for moderate pressures and high speeds; general-purpose wearing material for rob bushings, freight and streetcar bearings, backs for lined bearings; bushings for gasoline pumps; hyraulic glands; seats; deep well pump-bowl bushings; general bearings for locomotive tenders and passenger and freight cars; rolling-mill bearings; diesel engine bearings; kingpin bushings for earth-moving pumps, pump bodies and impellers for acidic water.

Mechanical Properties
M07 - AS CONTINUOUS CAST		US Customary	Metric
Tensile Strength	Minimum	25 ksi	172 MPa
Yield Strength
0.5% Ext. under load	Minimum	16 ksi	110 MPa
Elongation	Minimum	5 %, in 2 in.	5 %, in 51 mm

C93900 - Typical Uses

Bearings
Pump Bodies
Pump Impellers for Mine Water

Mechanical Properties
M07 - AS CONTINUOUS CAST		US Customary	Metric
Tensile Strength	Minimum	25 ksi	172 MPa
Yield Strength
0.5% Ext. under load	Minimum	16 ksi	110 MPa
Elongation	Minimum	5 %, in 2 in.	5 %, in 51 mm

C94000, C94100/520 - Typical Uses

Bearings
Pump Bodies
Pump Impellers for Mine Water

Mechanical Properties
M07 - AS CONTINUOUS CAST		US Customary	Metric
Tensile Strength	Minimum	25 ksi	172 MPa
Yield Strength
0.5% Ext. under load	Minimum	17 ksi	117 MPa
Elongation	Minimum	7 %, in 2 in.	7 %, in 51 mm

C94300 - Typical Uses

Characteristics:
Fair strength; fair wear resistance; low pounding resistance; excellent antifriction qualities; good conformability - will not score soft shafts; good machining and fair casting properties requires care in broaching; can operate at high speeds under adverse lubrication conditions.

Uses:
Light to moderate loads and high speeds; unsuitable for extremely heavy compressive and shock loads; suitable for bearing liners required to deform locally to conform to irregularities of motion or bad fit; under-water service; water-lubricated bushings; aircraft-carburetor bearings for locomotive bearing parts; rod bushings and main bearings for refrigeration compressors; hydraulic pump bushings.

Mechanical Properties
M07 - AS CONTINUOUS CAST		US Customary	Metric
Tensile Strength	Minimum	21 ksi	145 MPa
Yield Strength
0.5% Ext. under load	Minimum	15 ksi	103 MPa
Elongation	Minimum	7 %, in 2 in.	7 %, in 51 mm

C94400 - Typical Uses

Characteristics:
Fair strength; fair wear resistance; low pounding resistance; excellent antifriction qualities; good conformability - will not score soft shafts; good machining and fair casting properties requires care in broaching; can operate at high speeds under adverse lubrication conditions.

Uses:
Light to moderate loads and high speeds; unsuitable for extremely heavy compressive and shock loads; suitable for bearing liners required to deform locally to conform to irregularities of motion or bad fit; under-water service; water-lubricated bushings; aircraft-carburetor bearings for locomotive bearing parts; rod bushings and main bearings for refrigeration compressors; hydraulic pump bushings.

Mechanical Properties
*M01 - AS SAND CAST		US Customary	Metric
Tensile Strength	Typical	32 ksi	221 MPa
Yield Strength
0.5% Ext. under load	Typical	16 ksi	110 MPa
Elongation	Typical	18 %, in 2 in.	18 %, in 51 mm

C95400/720 - Typical Uses

Bushings
Worm Gears
High Strength Clamps
Valves
Landing Gear Parts
Machine Parts
Valve Guides
Wear Plates

Mechanical Properties
*M01 - AS SAND CAST		US Customary	Metric
Tensile Strength	Typical	85 ksi	586 MPa
Yield Strength
0.5% Ext. under load	Typical	32 ksi	221 MPa
Elongation	Typical	12 %, in 2 in.	12 %, in 51 mm

* In determining copper minimum, copper may be calculated as copper plus nickel.
Chemical Composition according to ASTM B505-08.
B Cu + Sum of Named Elements, 99.0 % min. Fe shall be .35% max., when used for steel-backed.

	C93200 SAE 660	C93400	C93500 SAE 66	C93600	C93700B SAE 64	C93800 SAE 67	C93900	C94000	C94100 520	C94300	C94400	C95400 720
Cu%	81.0-85.0	82.0-85.0	83.0-86.0	79.0-83.0	78.0-82.0	75.0-79.0	76.50- 79.50	69.00- 72.00	72.0-79.0	67.0-72.0		83.0 Min
Sn%	6.3-7.5	7.0-9.0	4.30-6.00	6.0-8.0	9.0-11.0	6.30-7.50	5.00-7.00	12.00- 14.00	4.50-6.50	4.50-6.00		NA
Pb%	6.0-8.0	7.0-9.0	8.0-10.0	11.0-13.0	8.0-11.0	13.0-16.0	14.0-18.0	14.0-16.0	18.0-22.0	23.0-27.0		NA
Zn%	1.0-4.0	0.80	2.0	1.0	0.8	0.80	1.5	0.50	1.00	0.80		NA
Fe%	0.2	0.2	0.20	0.20	0.7	0.15	0.40	0.25	0.25	0.15		3.0-5.0
Ni%	1.08*	1.0*	1.0*	1.0	0.5	1.00	0.80*	0.50-1.00*	1.00	1.00		1.5
Sb%	0.35	0.5	0.30	0.55	0.5	0.80	0.50	0.50	0.80	0.80		NA
P%	0.15	0.5	1.5	0.15	0.1	1.5	1.5	1.5	1.50	1.5		NA
S%	0.08	0.08	0.08	0.80	0.08	0.08	0.08	0.08	0.08	0.08		NA
Al%	0.005	0.005	0.005	0.005	0.005	0.005	0.005	0.005	0.005	0.005		10.0-11.5
Mn%	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA		0.50
Si%	0.005	0.005	0.005	0.005	0.005	0.005	0.005	0.005	0.005	0.005		NA
Bi%	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA		NA