Little Falls Alloys
                   171-191 Caldwell Avenue   Paterson, NJ 07501
             (973)-278-1666     fax (973)-278-7345
       Toll Free (888) LFA-WIRE
       info@lfa-wire.com

70-30 BRASS,  C26000

COMPOSITION
70-30 BRASS,  C26000
ELEMENT PERCENT
NOMINAL MINIMUM MAXIMUM
Copper 70 68.5 71.5
Lead -- -- .07
Iron -- -- .06
Zinc 30 Remainder
Total other elements -- -- --

 

PHYSICAL PROPERTIES
70-30 BRASS,  C26000
HEAT TREATED CONDITION ENGLISH UNITS METRIC UNITS
Melting Range 1680-1750°F 915-955°C
Density .308 lb/cu in. @ 68°F 8.53 gm/cm@ 20°C
Specific Gravity 8.53 8.53
Coefficient of Thermal
   Expansion		 .0000111 per °F (68-392°F) .0000199 per °C (20-200°C)
Thermal Conductivity 70 BTU/sq ft/ft/hr/°F @ 68°F .29 cal/sq cm/cm/sec/°C @ 20°C
Electrical Resistivity
  (Annealed)		 37.0 Ohms/circ mil ft @ 68°F 6.16 microhm - cm @ 20°C
Electrical Conductivity
  (Annealed) 		28% Copper IACS @ 68°F .162 megohm cm @ 20°C
Specific Heat .09 BTU/lb/°F @ 68°F .09 cal/gm/°C @ 20°C
Modulus of Elasticity
  (tension)		 16,000 KSI* 11,200 kg/sq mm
Modulus of Rigidity  (torsion) 6000 KSI 4200 kg/sq mm
Annealing Temperature 800-1400°F 425-750°C
Stress Relief Temperature
  (1 hr)		 500°F 260°C

 

MECHANICAL PROPERTIES
70-30 BRASS,  C26000
For Round, Half Round and Square Wire
DESIGNATION TENSILE STRENGTH YIELD STRENGTH †
.5% EXTENSION
NOMINAL
STD FORMER KSI* MPa** KSI* MPa**
-- Annealed (A) 48-54 †† 330-372 †† 16-23 110-158
H00 Eighth Hard 50-55 345-450 46 317
H01 Quarter Hard (1/4H) 62-77 425-530 57 393
HO2 Half Hard (1/2H) 79-94 545-650 65 448
HO3 Three Quarters Hard (3/4H) 92-107 635-740 70 482
HO4 Hard 102-117 700-810 70 482
H06 Extra Hard (XH) 115-129 790-890 70 482
H08 Spring 120 min 830 min 70 482

MECHANICAL PROPERTIES
70-30 BRASS,  C26000
For Rolled Flat Wire other than Square
DESIGNATION TENSILE STRENGTH YIELD STRENGTH †
.5% EXTENSION
NOMINAL		 PERCENT
ELONGATION †
IN 2 in., IN 50 mm
NOMINAL
STD FORMER KSI* MPa** KSI* MPa**
-- Annealed (A) 44-53†† 303-365†† 11-22 75-151 54-66

H01

 Quarter Hard (1/4H) 49-59 340-405 40 275 43
H02 Half Hard (1/2H) 57-67 395-460 52 358 23
H03 Three Quarters Hard 64-74 440-510 57 393 10
H04 Hard (H) 71-81 490-560 63 434 8
H06 Extra Hard (XH) 83-92 570-635 65 448 5
H08 Spring 91-100 625-690 65 448 3
H10 Extra Spring 95-104 655-720 65 448 3

* 1 KSI equals 1,000 PSI
   1 KSI equals 6.894,757 MPa (Megapascal)
†   Values for reference only.   Not part of specification.
††    Annealed specification is on grain size only (.015-.050 mm)

70-30 BRASS,   C26000
ASTM Material Specifications

Home     Product Directory     Quotes & Information     Contact LFA     

Return to Brass Directory