Name: C18150 Copper Chromium Zirconium Strip/Coil
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C18150 Copper Chromium Zirconium Strip/Coil

C18150 is a copper-chromium-zirconium alloy (CuCrZr) with high conductivity, high hardness, wear resistance and explosion resistance. It is widely used in electrode materials, lead frames, welding equipment and other fields.

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Parameter

Chemical Composition

Mechanical Properties

Size range

Copper strip

Thickness range: 0.08 mm to 3.0 mm, typical specifications include 0.5 mm, 0.8 mm, 1.0 mm, 1.2 mm, 2.0 mm, etc.

Width range: 8 mm to 1250 mm, the specific width can be adjusted according to standard or customized requirements.

International Standards

ASTM Standards:

Copper Strip: Thickness tolerance refers to ASTM B152, for example, when the thickness is ≤0.1 mm, the tolerance is ±0.012 mm.

EN Standards:

Copper Plate/Copper Strip follows EN 1652 (corresponding to DIN 1787), with thickness ranging from 0.006 mm to 50 mm, and width graded by thickness (e.g. 0.5-0.8 mm width ≤600 mm).

GB/T Standards:

Copper Strip implements GB/T 2059, with a thickness range of 0.5-0.8 mm, a width tolerance of ±0.1 mm, and a condition of O60 (soft state).

Grade	Cu (Copper)	Other Main Elements and Their Contents	Impurity Contents
C10100	≥99.97%	-	Total ≤ 0.03%
C10200	≥99.95%	-	Total ≤ 0.05%
C11000	≥99.90%	-	Total ≤ 0.10%
C12000	≥99.90%	P: 0.004% - 0.012%	Total ≤ 0.10%
C12200	≥99.90%	P: 0.015% - 0.040%	Total ≤ 0.10%
C14500	≥99.0%	Te: 0.4% - 0.7%	Total ≤ 1.0%
C17200	Remainder	Be: 1.80% - 2.0%, Co or Ni: A small amount	Total ≤ 0.5%
C17500	Remainder	Be: 0.4% - 0.7%, Co: 1.4% - 2.2%	Total ≤ 0.5%
C17510	Remainder	Similar to C17500, with slight differences in composition	Total ≤ 0.5%
C18150	Remainder	Cr: 0.4% - 1.0%, Zr: 0.08% - 0.25%	Total ≤ 0.5%
C18200	Remainder	Cr: Approximately 1.0%, P: 0.002%, Mn: 0.0005%, As: 0.0002%, Si: 0.05%, Fe: 0.045%, Mg: 0.0006%, Sn: 0.0065%, Al: 0.0010%, Bi < 0.0001%	Total ≤ 0.5%
C70600	88.0% - 90.0%	Ni: 9.0% - 11.0%, Fe: 1.0% - 1.8%, Mn ≤ 0.5%, Si ≤ 0.5%, S ≤ 0.05%, P ≤ 0.05%	Total ≤ 0.5%
W70Cu3	30%	W: 70%	Total impurity content < 0.5%
W75Cu2	25%	W: 75%	Total impurity content < 0.5%
W80Cu2	20%	W: 80%	Total impurity content < 0.5%

Grade	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)	Hardness (HB)
C10100	≥205	≥69	≥45	40 - 60
C10200	≥205	≥69	≥45	40 - 60
C11000	≥220	≥76	≥40	45 - 65
C12000	≥220	≥76	≥40	45 - 65
C12200	≥220	≥76	≥40	45 - 65
C14500	≥240	≥103	≥30	60 - 80
C17200	After heat treatment ≥1100	After heat treatment ≥1035	≥3	360 - 420
C17500	After heat treatment ≥725	After heat treatment ≥620	≥4	240 - 300
C17510	After heat treatment ≥690	After heat treatment ≥585	≥5	220 - 280
C18150	≥380	≥275	≥15	100 - 130
C18200	≥380	≥275	≥15	100 - 130
C70600	≥370	≥170	≥30	85 - 110
W70Cu3	Approximately 650 - 750	Approximately 550 - 650	≥10	180 - 220
W75Cu2	Approximately 700 - 800	Approximately 600 - 700	≥8	200 - 240
W80Cu2	Approximately 750 - 850	Approximately 650 - 750	≥6	220 - 260

INTRODUCTION

Production process and product advantages of C18150 copper plate and copper strip/coil:

1. Production process

Forming process

The blank is prepared by melting and casting process, using cathode copper (purity ≥99.99%) and chromium, zirconium and other alloy elements to smelt, and the chromium content is controlled to 0.5-1.5% and zirconium to 0.05-0.25%.

The continuous extrusion (Conform Extrusion) technology is used in the hot working stage to extrude the blank from 12.5mm diameter to a smaller size (such as 8-10mm), significantly refining the grain and improving the mechanical properties.

Cold working includes rolling, cold heading, machining, etc., and the surface roughness (up to 1.64μm) and material removal rate are optimized by controlling the plate thickness, cooling speed and processing parameters (such as cutting speed 1200rpm, feed rate 0.06mm/rev).

The heat treatment adopts solid solution treatment + artificial aging (such as AT and HT processes) to improve the hardness (HRB 80) and softening temperature (＞500°C).

Processing adaptability

Supports conventional metal processing technologies such as welding (arc welding, brazing), bending, and stamping, but oxyacetylene welding is not recommended.

High-speed milling pretreatment is required during discharge machining to reduce electrode loss.

2. Product advantages

High strength and high electrical/thermal conductivity

Tensile strength reaches 550-700MPa (depending on the state), electrical conductivity ≥80%IACS, thermal conductivity 320-330W/m·K, with high strength and high conductivity, better than traditional alloys such as C7025 and C19400.

At the same conductivity, the cost is only 54% of C7025, with significant cost performance.

High temperature resistance and wear resistance

Softening temperature ＞500°C (better than 200°C of pure copper and 350°C of silver-containing copper), and stable performance is maintained at high temperature.

Hardness reaches 170-200HV, excellent wear resistance, suitable for high-load scenarios (such as resistance welding electrodes and molds).

Processing and anti-deformation performance

Good cold and hot processing formability, high stress relaxation resistance, and thin sheet processing is not easy to bend.

Chromium elements improve cutting performance, reduce processing adhesion, and extend tool life.

Wide application

Applicable to high-end fields such as high-current connectors, new energy vehicle charging and discharging systems, and high-speed rail motor end rings.

FAQ

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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