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C22000 brass tubes are available in seamless and welded forms, adhering to standardized dimensional ranges under international specifications:
Round Tube Dimensions (Primary Focus):
- Outer Diameter (OD):
- Imperial: Ranges from 1/8" (3.18 mm) to 12" (304.8 mm) nominal, with common sizes including 2.5 mm, 6.35 mm (1/4"), 12.7 mm (1/2"), and 22 mm .
- Metric: 6 mm to 54 mm (standard) or up to 120 mm for specialized applications .
- Wall Thickness:
- Seamless Tubes: 0.020" (0.508 mm) to 0.250" (6.35 mm) .
- Welded Tubes: Customizable based on engineering requirements, typically 0.25 mm to 3 mm .
- Seamless Tubes: 0.020" (0.508 mm) to 0.250" (6.35 mm) .
Tolerances and Mechanical Properties (ASTM Standards):
- Tensile Strength: 40–52 ksi (276–359 MPa) in drawn (H) temper .
- Hardness (Rockwell): 30T 30–55 .
Grain Size: ≤0.060 mm for annealed (O60) temper
International Standards
C22000 tubes comply with the following key standards:
Detailed Chemical Composition of C22000 Copper Alloy
C22000, also known as Commercial Bronze or H90 brass, is a copper-zinc alloy with minor trace elements. Its chemical composition is standardized as follows (by weight percentage):
- Copper (Cu): 89.0–91.0%
- Zinc (Zn): Balance (approximately 9.0–11.0%)
- Iron (Fe): ≤0.05%
- Lead (Pb): ≤0.05%
- Other impurities (total): ≤0.3%
This composition ensures a balance of ductility, corrosion resistance, and workability. Notably, the low iron and lead content minimizes brittleness and enhances cold-working properties
Mechanical Properties of C22000 Copper Alloy
The mechanical properties of C22000 vary significantly depending on its processing state (e.g., annealed, cold-worked). Below is a comprehensive breakdown:
1. Basic Mechanical Properties (Annealed State):
- Tensile Strength (Ultimate): 200–260 MPa
- Yield Strength (0.2% Offset): 69–150 MPa
- Elongation (at Break): 15–45%
- Shear Strength: 200–300 MPa
- Hardness:
- Brinell Hardness (HB): 70–200 HB
- Rockwell B Hardness: 42–81 HRB
- Brinell Hardness (HB): 70–200 HB
- Elastic Modulus: 110–115 GPa
- Poisson’s Ratio: 0.33
2. Enhanced Properties After Cold Working:
Cold deformation significantly improves strength and hardness:
- Tensile Strength: Up to 520 MPa
- Yield Strength: Up to 500 MPa
- Elongation: Reduced to 1.9–10% (depending on strain)
- Hardness (Rockwell 30T): 47–73 HR30T
3. Compressive Strength:
- Compressive Strength: >600 MPa (noted in specialized reports for high-load applications) .
Q1:Do you provide samples? Is it free or extra?
A1:Yes, we can provide samples free of charge and the customer will pay the freight.
Q2:What if I don't have export experience ?
A2:We have reliable forwarder agent which can ship items to you by sea/air/Express to your doorstep. Any way, we will help you choose the most suitable shipping service.
Q3:How long is your lead time?
A3:If it is in stock, it is usually 5-10 days. Or, if there is no inventory, 15 days, depending on the quantity.
Q4:What are your terms of payment?
A4:30% T/T deposit in advance, 70% T/T balance within 5 days after B/L copy, 100%.Irrevocable L/C at sight, 100% Irrevocable L/C after receive B/L 30-120 days, O/A.
Q5:How is your technical support?
A5:We provide lifetime online support through Whatsapp/ Skype/ Wechat/ Email. Any problem after delivery, we will offer you call anytime.
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