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Detailed size range:
Outer diameter range:
General connectors: φ10.19mm~φ168.27mm (such as threaded pipe joints).
Condenser/heat exchanger: 6mm~150mm (ASTM B43 standard).
Pipeline system: Sch 40 (standard wall thickness) covers 1/8" to 6", Sch 80 (extra thick wall) covers 1/8" to 4".
Wall thickness range:
General use: 0.7mm~5mm (ASTM B43).
Specific needs: Some applications can reach 42.5mm (such as air conditioning/refrigeration thick wall pipes), but need to be combined with specific standards.
International standards:
Material standards:
ASTM B43: specifies the chemical composition, mechanical properties and dimensional requirements of C23000 red brass tubes.
ASME Boiler and Pressure Vessel Code: Covers the annealed (O61) and stretched (H58) state standards for seamless red copper tubes.
Size and thread standards:
ASTM B687: Specification for pipe dimensions and tolerances.
ASME B1.20.1, ISO 7/1: Thread standards for external threaded connections.
Main components:
Copper (Cu): The content ranges from 84.0% to 86.0%.
Zinc (Zn): As a residual component, it usually accounts for about 14%-16%.
Trace elements:
Lead (Pb): The maximum content does not exceed 0.05%.
Iron (Fe): The maximum content does not exceed 0.05% (some standards such as GB/T 5231-2012 stipulate that Fe≤0.03%)
Mechanical properties vary depending on processing status, hardness level and product size:
Tensile strength:
H01 (semi-hard): Minimum tensile strength for bars with diameters less than 1/2 inch is 305 MPa (44 ksi), and for bars with diameters greater than 1 inch is 275 MPa (40 ksi).
H02 (semi-hard): 345 MPa (50 ksi) for bars with diameters less than 1/2 inch, and 275 MPa (40 ksi) for bars with diameters greater than 1 inch.
H04 (hard): 435 MPa (63 ksi) for bars with diameters less than 1/2 inch, and 400 MPa (58 ksi) for bars with diameters greater than 1 inch.
Combined with other standards, the tensile strength range can reach 269-724 MPa (39-105 ksi).
Yield Strength:
Wide range, from 69 MPa (10 ksi) to 480 MPa (70 ksi), depending on processing
Elongation:
Up to 55% (2-inch gauge length), elongation for different hardness grades in ASTM standards varies with diameter.
Hardness:
Rockwell B hardness ranges from 48-87, Rockwell Superficial 30T hardness ranges from 51-77; hardness values vary in different annealing states.
Other Parameters:
Modulus of Elasticity: Approximately 110-117 GPa.
Poisson's Ratio: 0.33-0.34.
Shear Strength: 220-340 MPa.
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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