Brass Grade

FREE CUTTING BRASS RODS - GRADE I

IS 319 / 89 NR. EQUIVALENT SPEC. BS 2874 / 86, CZ121PB3,JIS3250H C-3604, ASTMBC38500

Chemical Requirements (%) Grade I
Copper
 56.0 – 59.0 %
Lead
 2.0 – 3.50 %
Iron
 0.35% max.
Total Imp. Excl. Iron
 0.70% max.
Zinc Remainder
Physical Properties
Condition Size T. S. MPA EL % Min

Annealed (O)

 6-25 345 12
25-50 315 17
50 above 285 22
Half-Hard (HB) 6-12 405 4
12-25 395 6
25-50 355 12
Hard (HD) 50 above 325 17
6-12 550 –
12-25 490 4
Fabrication Properties  
Capacity for being
  
Cold worked
 Poor
Hot formed
 Fair
Machinability Rating
 100%
Suitability for Soldering
 Excellent
Suitability for Brazing Good

FREE CUTTING BRASS RODS - GRADE Il & lll

IS 319 / 89 NR. EQUIVALENT SPEC. BS 2874 / 86 CZ124, JIS3250 H C-3602, ASTMBC36000

Chemical Requirements (%)Grade IIGrade III
Copper60.0 – 63.0 %60.0 – 63.0 %
Lead2.50 – 3.70 %0.50 – 1.50 %
Iron0.35 % max.0.20 % max.
Total Imp. Excl. Iron0.50 % max.0.50 % max.
ZincRemainderRemainder
Physical Properties Grade II Grade III
Condition Size T. S. MPA EL % Min T. S. MPA EL % Min

Annealed (O)

 6-25 355 15 315 22
25-50 305 20 285 27
50 above 275 25 255 32
Half-Hard (HB) 6-12 395 7 355 8
12-25 385 10 345 12
25-50 345 15 305 22
Hard (HD) 50 above 315 20 285 27
6-12 550 – 460 –
12-25 485 4 400 4
Physical Properties Grade II Grade III
Capacity for being  
Cold workedPoorFair
Hot formedFairExcellent
Machinability Rating90%80%
Suitability for SolderingExcellentExcellent
Suitability for BrazingGoodExcellent

FREE CUTTING BRASS RODS WITH IMPROVED DUCTILITY

BS 2874 – CZ 131 NR, EQUIVALENT SPEC. DTD 627, EN CW606N – 12164
DIN CuZn36Pb2 – 17900, UNS – C35300

Chemical Requirements(%)
Copper 61.00 – 63.00 %
Lead 1.50 – 2.50 %
Iron – 0.20 % max
Total Imp Excl. Iron – 0.50 % max
Zinc Remainder
Physical Properties : (1/2 Hard)
Condition Size T. S. MPa EL % Min.
Half-Hard (AB) 6 – 18 350 22
  18 – 40 350 25
  40 – 80 350 28
  Above 80 mm 330 28
Fabrication Properties
Capacity for being  
Cold Worked Poor
Machinability Rating (IS 319-I 100) 70
Bending Excellent
Cold Heading Excellent
Rivetting Excellent

FREE CUTTING & FORGING BRASS RODS

EN 12164 : 1998

  A B
Chemical
Requirement(%)
 CuZn39Pb3 CuZn40Pb2
CW614N CW617N
Copper 57 – 59 % 57-59 %
Lead 2.5 – 3.5 % 1.6 – 2.5 %
Aluminum 0.05 % max 0.05 % max
Iron 0.30 % max 0.30 % max
Nickle 0.30 % max 0.30 % max
Tin 0.30 % max 0.30 % max
Total Imp. 0.20 % max 0.20 % max
Zinc Remainder Remainder
Physical Properties : (1/2 Hard)
Condition Size T. S. MPa EL % Min. Size T. S. MPa EL % Min.
Half-Hard (AB) 6 -14 400 15 6 -14 550  
  14 – 40 380 18 14 – 40 500 8
  40 – 80 360 20 40 – 80 430 10
Fabrication Properties
Capacity for being 
Cold WorkedPoor
Hot FormedExcellent
Suitability for SolderingExcellent
Suitability for BrazingGood

FORGING BRASS RODS

BS 218

Chemical Requirement (%)
Copper56.50 – 60.00 %
Lead1.00 – 2.50 %
Iron0.30 % max
Total Imp.0.70 % max
ZincRemainder
Physical Properties
Rm – Tensile strength in Kg / mm2 32 min.
Elongation on 5.65 A% 25 min.
Fabrication Properties
Capacity for being
  
Cold Worked Poor
Hot Formed Excellent
Hot Forgebility Rating (Forging Brass – 100 ) 100
Machinability Rating (IS 319-I 100) 80
Suitability for Soldering Excellent
Suitability for Brazing Good

FORGING BRASS RODS

IS – 6912 / 2005 FLB

Chemical Requirement (%)
Copper 56.50 – 60.00 %
Lead 0.60 – 2.00 %
Iron 0.30 % max.
Total Imp excl Fe 0.75 % max
Zinc Remainder
Physical Properties
Rm – Tensile strength in Mpa 310 min.
Elongation on 5.65 A% 25 min.
Fabrication Properties
Capacity for being
  
Cold Worked Poor
Hot Formed Excellent
Hot Forgebility Rating (Forging Brass – 100 ) 100
Machinability Rating (IS 319-I 100) 80
Suitability for Soldering Excellent
Suitability for Brazing Good

FORGING BRASS RODS

IS 3488 / 80 NR. EQUIVALENT SPEC. BS 2874 / 86 CZ122,ASTMBC37700

Chemical Requirements (%) CuZn42Pb2 CuZn40Pb2
Copper 56.5 – 60.0 % 57.0 – 59.0 %
Lead 0.60 – 2.0 % 1.50 – 2.50 %
Iron 0.30 % max. 0.40 % max.
Total Imp. Excl. Iron 0.20% max 0.70 % max
Zinc Remainder Remainder
Physical Properties
Tensile Strength 380 Mpa Min 40 kg/mm2 min
Elongation % 25% Min 18% Min.
Izod Value – 2.0 KJ Min.
Fabrication Properties
Capacity for being    
Cold worked Poor Poor
Hot formed Excellent Excellent
Hot forgeability Rating 100% 100%
Machinability Rating 80% 80%
Suitability for Soldering Excellent Excellent
Suitability for Brazing Good Good

SPECIAL FORGING BRASS RODS FOR VALVES

IS 8737 / AMD – 2

Chemical Requirements %
Copper 56.5 – 60.0 %
Lead 1.0 – 2.0 %
Manganese 0.50 % max.
Iron 0.30 % max.
Total Imp. 0.75% max.
Zinc Remainder
Physical Properties
Tensile Strength 40 kg/mm2 Min
Elongation % 18% Min.
Izod Value 2.2 Kgf Min.
Fabrication Properties
Capacity for being  
Cold worked Poor
Hot formed Excellent
Hot forgeability Rating 100%
Machinability Rating 80%
Suitability for Soldering Excellent
Suitability for Brazing Good

RIVETING QUALITY BRASS RODS & WIRES

IS 4170 / 67 NR. EQUIVALENT SPEC. BS 2874 / 86 CZ 109,
JIS3250H C-2800, ASTMBC36500

Chemical Requirements % CuZn40
Copper 59.0 – 62.0 %
Lead 0.75 % max.
Iron 0.10% max.
Total Imp. Excl. Iron 0.30 % max.
Zinc Remainder
Physical Properties
Tensile Strength 40 kg/mm2 Min
Elongation % 18% Min.
Izod Value 2.2 Kgf Min.
Fabrication Properties
Capacity for being  
Machinability Rating 55 %
Bending Excellent
Riveting Excellent
Forging Excellent

RIVETING QUALITY BRASS RODS (LEAD FREE)

IS 4413 / 81 NR. EQUIVALENT SPEC. BS 2872 / 86 CZ 108

Chemical Requirements % CuZn37 CuZn30
Copper 62.0 – 65.0 % 60.5 – 71.50 %
Lead 0.30 % max. 0.05 % max.
Iron 0.10 % max. 0.05 % max.
Total Imp. 0.60 % max. 0.30 % max.
Zinc Remainder Remainder
Physical Properties
Condition T. S. MPa EL % Min T. S. MPa EL % Min
Annealed (O) 325 min 35 % 315 min 45 %
Half-Hard (HB) 460-620 – 460-620 –
Hard (HD) 660-775 – 620 min –
Fabrication Properties
Capacity for being  
Machinability Rating 40 %
Bending Excellent
Riveting Excellent
Forging Excellent

RIVETING BRASS RODS (LEADED)

IS 2704 / 83 NR. EQUIVALENT SPEC. BS 2874 CZ 119
JIS3250 H C-2700, ASTMBC34000

Chemical Requirements % CuZn35Pb1 CuZn35
Copper 62.0 – 65.0 % 63.0 – 68.0 %
Lead 0.75 – 1.50 % 0.02 % max.
Iron 0.10 % max. 0.05 % max.
Total Imp. 0.50 % max. 0.30 % max.
Zinc Remainder Remainder
Physical Properties
Condition T. S. MPa EL % Min T. S. MPa EL % Min
Quarter Hard (HA) 325-390 30% 340-345 30%
Half-Hard (HB) 400-490 20% 420-510 15%
Hard (HD) 500-685 15% – –
Extra Hard (HE) 695-885 5% – –
Fabrication Properties
Capacity for being  
Cold Forming Excellent
Machinability Rating 70 %
Bending Excellent
Riveting Excellent

HIGH TENSILE BRASS RODS

IS 320 / 80 NR. EQUIVALENT SPEC. BS 2874 CZ 114 & CZ 115,
JIS3250H C6782 & C6783

Chemical Requirements % HT1 HT2
Copper 56.0 – 60.0 % 56.0 – 61.0 %
Lead 0.20 – 1.50 % 0.50 – 1.50 %
Iron 0.20 – 1.25 % 0.20 – 1.50 %
Tin 0.20 – 1.0 % 1.0 % max
Aluminum 0.20 % max. 0.30 – 2.0 %
Manganese 0.25 % – 2.0 % 0.50 – 2.0 %
Total Imp. 0.50 % max. 0.50 % max.
Zinc Remainder Remainder
Physical Properties
Condition Size T. S. Mpa EL % Min T. S. Mpa EL % Min
As manufactured All Size 430 min 20 % 460 min 20 %
Cold worked & Stress 10-40 480 min 12 % 520 min 12 %
Relieved 40 above     500 min 15 %
Fabrication Properties
Capacity for being    
Cold Formed Poor Fair
Hot Worked Good Good
Machinability Rating 30 % 30%
Resistance to Corrosion Excellent Excellent
Suitability for Soldering Excellent Fair

NAVAL BRASS RODS - GRADE I & II

IS 291 / 89 NR. EQUIVALENT SPEC. BS 2874 CZ 112, CZ 113,
JIS3250 H C4622 / 41, ASTMBC482 / 8500

Chemical Requirements % Grade I Grade II
Copper 61.0 – 64.0 % 59.0 – 62.0 %
Lead 0.20% max. 0.50 – 1.0 %
Tin 1.0 – 1.50 % 0.50 – 1.0 %
Iron 0.10 max. –
Total Imp. 0.20 max. 0.20 % max.
Zinc Remainder Remainder
Physical Properties
Condition Size T. S. kg/mm2 EL % Min T. S. kg/mm2 EL % Min
Half-Hard (HB) Upto 12.5 40 min 18 % 40 min 15%
  12.5 to 50 38.5 min 18 % 40 min 15%
  50 to 100 35 min 18 % 40 min 15%
Fabrication Properties
Capacity for being    
Cold Worked Fair Poor
Hot Worked Excellent Good
Machinability Rating 30% 50%
Forgeability Rating 90% 90%
Silver Alloy Brazing Excellent Good
Soft Soldering Excellent Excellent
Oxyacetylene Welding Good Not Suitable

DEZINCIFICATION RESISTANCE BRASS (DZR)

Standard Specification CW602N
(A) Chemical Requirements % Europe
Copper 61.0 – 63.0 %
Lead 1.70 – 2.8 %
Aluminum 0.05 % max.
Nickel 0.30 % max.
Iron 0.10 % max.
Tin 0.10 % max.
Zinc Remainder
Total Impurities 0.20 % max.
Arsenic 0.02 – 0.15 %
Remarks : Mn <=0.1
(B) Mechanical Properties  
Ultimate Tensile Strength MPa 430 min.
Elongation MPa 200 min.
Hardness HB 110 min.

LEADED COPPER

IS 8328 / 77

Chemical Requirements %
Copper + Ag 99.90 % min
Lead 0.8 – 1.5 %
Physical Properties
Condition T. S. MPa EL % Min
Half-Hard (HB) 260 12 %
Fabrication Properties
Capacity for being Cold Worked Good
Hot Worked Poor
Machiniability Rating 80%
Suitability for Soldering Excellent
Suitability for Brazing Good
Electrical Conductivity 85% IACS

LEADED BRASS FOR SECTION

BS 2874 CZ 130, EN 12167, CW 624 N

Chemical Requirement (%)
Copper 55.50 – 57.50 %
Lead 2.50 – 3.50 %
Aluminum 0.50 % max.
Total Imp. 0.70 % max.
Zinc Remainder
Physical Properties :
Rm – Tensile strength in Mpa 370 min.
Elongation on 5.65 A% 25 min.
Proof strees (0.20%) in Kg/mm2 160 min.
Hardness (HV) 90-120
Fabrication Properties :
Machinability Rating (IS 319-l 100) 100

ARSENICAL COPPER

IS 288 / 81

Chemical Requirements %
Copper + Silver 99.20 % min
Arsenic 0.20 – 16.50 %
Antimony 0.05 % max.
Bismuth 0.002 % max.
Oxygen 0.10 % max
Lead 0.01 % max
Physical Properties
Condition Size T. S. MPa EL % Min
Annealed 10 to 25 215 35%
25 to 50 205 40%
50 & above 195 40%
As Manufactured 10 to 25 255 15%
25 to 50 245 18%
50 & above 235 20%
Fabrication Properties
Capacity for being  
Cold Worked Excellent
Hot Formed Excellent
Suitability for Soldering Good
Suitability for Brazing Good
Suitability for Riveting Excellent

ALUMINUM SILICON BRONZE RODS

IS 10569 / 05 NR. EQUIVALENT SPEC. ASTMBC64200

Chemical Requirements % CuAl7Si2
Copper Remainder
Aluminum 6.3 – 7.60 %
Iron 0.30 % max.
Nickel 0.25 % max.
Manganese 0.10 % max.
Tin 0.20 % max.
Lead 0.05 % max.
Zinc 0.50 % max.
Silicon 1.5 – 2.2 %
Total Imp. Excl. Fe, Ni & Mn 0.50 % max.
Physical Properties
Condition Size T. S. Kg/mm2 EL % Min
Annealed / As Manufactured 6 to 15 620 9%
  15 to 50 575 12%
  50 to 80 515 12%
  80 & above 485 15%
Fabrication Properties
Capacity for being
Cold Worked Not Suitable
Hot Formed Excellent
Machiniability Rating 80%
Suitability for Soldering Excellent
Suitability for Brazing Good

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