CuZn37 is the major brass alloy for the cold forming process. Even though brasses with lower Zinc content have better cold forming properties, CuZn37 is the most used alloy. Reasons for this are on the one hand economical due to lower price of Zinc compared to Copper, on the other hand the forming properties of this alloy meet the demand of many applications.
Typical Applications:
Fasteners: Fasteners, Fasteners
Industrial: Cold Headed Parts, Heat Exchanger Shells, Pump Cylinder Liners
Equivalent Specifications
| SPECIFICATIONS | DESIGNATION |
|---|---|
| Europen | CuZn36 |
Chemical Composition
| Cu | Fe | Pb | Zn | |
|---|---|---|---|---|
| Min/Max | 62.0 - 65.0 | .07 | .07 | Rem |
| Nominals | 63.5 | - | - | 36.5 |
Physical Properties
| Melting Point - Liquidus | 1680 F |
| Density | 0.305 lb/in3 at 68 F |
| Specific Gravity | 8.44 |
| Electrical Conductivity | 27.60 %IACS @ 68 F |
| Thermal Conductivity | 67 BTU in/hr.ft2.°F @ 68 F |
| Coefficient of Thermal Expansion | 11.40 10−6Per °F (68-572 F) |
| Specific Heat Capacity | 0.090 Btu/lb/°F at 68 F |
| Modulas of Elasticity in Tension | 15000 ksi |
| Modulus of Rigidity | 5600 ksi |
| Modulus of Rigidityksi | 5600 |
Sizes Available
| WIRE | 1mm To 8 mm |
| HOLLOW RODS | Min Bore Size 20 mm and Max OD 100 mm |
| ROUND RODS/RODS | 6mm To 130 mm |
| HEX | 5mm To 60mm |
| SQUARE | 4mm To 60mm |
| FLAT | 5mm Min Thickness and max Width 120mm |
| PROFILES / SECTIONS | AS per Customer Drawing |
| BILLETS | Up to 200 mm |
| INGOTS | AS per Specification |




Copper products that GNEE can provide
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Product name
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Copper Pipe / Tube
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Round copper pipe
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Wall thickness: 0.2-120mm
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Outside Diameter: 2mm~910mm
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Rectangular copper pipe
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Wall thickness: 0.2mm~910mm
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Size: 2mm*4mm~1016mm*1219mm
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Hardness
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1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc
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Standard
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GB/T5231-2001.GB/T1527-2006.JISH3100-2006, JISH3250-2006, JISH3300-2006, ASTM-B152M-06, ASTM-B187, ASTM-B75M-02, ASTM-B42-02, ASTM-B370 /ASTM-B152 etc
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Material
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T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800,
C10910,C10920,TP1,TP2,C10930,C11000,C11300,C11400,C11500,
C11600,C12000,C12200,C12300,TU1,TU2,C12500,C14200,C14420,
C14500,C14510,C14520,C14530,C17200,C19200,C21000,C23000,
C26000,C27000,C27400,C28000,C33000,C33200,C37000,C44300,
C44400,C44500,C60800,C63020,C65500,C68700,C70400,C70600,
C70620,C71000,C71500,C71520,C71640,C72200,etc.
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Usage
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Pressure vessels, Heat exchangers, Cotter, pins, Rivets, Radiators, Gaskets, Roofing, Gutters
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Package
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Standard export package,suit for all kind of transport,or as required.
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Material |
Copper, Brass, Bronze and special copper alloy |
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Grade |
ASTM |
C10100,C11000,C12200,C21000,C22000,C23000,C24000,C26000, |
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G/B |
TU1,T2,TP2,H96,H90,H85,H80,H70,H65,H63,H62,H59,HPb63-3, |
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JIS |
C 1011,C 1100,C 1220,C3604,C 2100,C 2200,C 2300,C 2400, C 2600, |
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BS |
Cu-OFE,C 101,Cu-DHP,CZ 125,CZ 101,CZ 102,CZ 103,CZ 106,CZ 107, CZ 108,CZ 109, CZ 123,CZ 124,CZ 121,CZ 111,CZ 133, Pb 104, |
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DIN/ISO |
CuZn5,CuZn10,CuZn15,CuZn20,CuZn30,CuZn35,CuZn33,CuZn36, |
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Shape |
Round, Square, Flat, Hexagon, Oval, Half-round or Customized |
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Dimension |
Bar/Rod |
Standard(Diameter 5-160 mm) or Customized |
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Wire |
Standard(Diameter 0.02-6 mm) or Customized |
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Plate/Sheet |
Standard(T 0.2-50 mm/W 200-3000 mm/L 6000 mm) or Customized |
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Strip |
Standard(T 0.05-1.5 mm/W 20-600 mm/L 20000 mm) or Customized |
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Tube/Pipe |
Standard(OD 3-360mm/Wall thickness 0.5-50 mm) or Customized |
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Standard |
GB/T,JIS,ASTM, ISO, DIN, BS, NF etc. |
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Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard. |
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Package |
Plastic film + Wooden case or as per customer requirement |
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Surface |
Polished,bright,oiled,hair line,brush,mirror,or as required |
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Deliver time |
According to order's quantity. |
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Shipment |
By sea, by air, DHL, UPS, FedEx etc. or as required |
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Application |
Electric light industry, machinery manufacturing, Building industry ,defense industry, and other fields Manufacturing industrial |
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Product name |
Copper plate |
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Width |
500-2000mm or as customer request |
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Thickness |
0.2-120mm or as customer request |
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Length |
1000-6000mm or as customer request |
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Processing service |
Welding, stamping, cutting, bending, unwinding |
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Application |
Widely used in electrical industry, medical equipment, construction, chemical, |
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Export packing |
Standard Marine packaging or custom packaging |
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Price Terms |
FOB CIF CFR,or We can also go into detail |
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Product Name |
Copper Wire |
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Standard |
AISI, ASTM, BS, DIN, EN, GB, JIS |
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Diameter |
0.6mm / 0.8mm / 0.9mm / 1.0mm / 1.2mm / 1.6mm |
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Thinckness |
0.12mm-3.0mm |
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Cu Content (%) |
99.998% |
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Alu-Zinc coating |
30-180g/m2 |
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Material |
C21000,C22000,C22600,C23000,C24000,C26000,C26130,C26800,C27000,C27200,C27400, etc. |
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Package |
Standard seaworthy export packing:
3 layers of packing, inside is kraft paper, water plastic film is in the middle and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve |
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Certification |
ISO, SGS, CE |
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Delivery |
8-20 days |
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Payment Terms |
T/T, LC, Western Union, Paypal, etc. |
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MOQ |
1 Ton |
copper CNC machined parts
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Processing |
CNC Turning,CNC Milling,Laser Cutting,Bending,Spining,Wire Cutting,Stamping, Electric Discharge Machining(EDM),Injection Molding,3D Printing,Rapid Prototype,Moulds etc. |
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Materials |
Aluminum:2000 series,6000 series,7075,5052,etc. |
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Stainlesss steel:SUS303,SUS304,SS316,SS316L,17-4PH,etc. |
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Steel:1214L/1215/1045/4140/SCM440/40CrMo,etc. |
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Brass:260,C360,H59,H60,H62,H63,H65,H68,H70,Bronze,Copper |
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Titanium:Grade F1-F5 |
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Plastic:Acetal/POM/PA/Nylon/PC/PMMA/PVC/PU/Acrylic/ABS/PTFE/PEEK etc. |
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Anodized,Bead Blasted,Silk Screen,PVD Plating,Zinc/NickI/Chrome/Titanium Plating, |
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Tolerance |
+ / - 0 . 0 1 m m |
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Surface |
Min Ra 0.1~3.2 |
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CERTIFICATE |
ISO9001:2015,IOS14001:2015,ROSH. |

Why choose us?
Since our establishment in 2008, our company has specialized in the production and export of copper products. We utilize advanced production lines and a comprehensive quality control system. From raw materials to finished products, every step is rigorously inspected using precision instruments (such as spectrometers, metallographic microscopes, and conductivity testers) to ensure that our products meet international standards for composition, dimensions, and performance. We are committed to providing high-quality, high-precision copper products and reliable service to our global customers.
Email:sales@gneesteel.com
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years experience
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