C18200 Chromium Copper / C182 Class II

C18200 Class II Chromium Copper is the primary copper alloy used for resistance spot and seam welding. C182 is a high conductivity copper alloy that obtains optimum properties from both heat treatment and cold working. C18200 offers resistance to softening at eleveated temperatures along with good stregnth and hardness. In addition to resistance welding applications C182 is used for numerous electrical applications where resistance to deformation at high temperature is required. The RWMA designation is Class II.

Shapes

Applications

• Resitance Welding Machine Electrodes
• Seam Welding Wheels
• Electrical Switch Gear
• Electrode Holder Jaws
• Molds
• Spot Welding Tips
• Heat Exchangers

Specifications

Chemical Composition
(%max., unless shown as range or min.)

	Cu(1)	Cr	Fe	Pb	Si
Min./Max.	Rem.	.6-1.2	.10	.05	.10
Nominal	99.1	.9	-	-	-

Mechanical Properties (measured at room temperature, 68 F (20 C)

Temper	Section Size	Cold Work	Typ/ Min	Temp	Tensile Strength	Yield Strength (0.5% ext. under load)			El	Rockwell Hardness					Brinell Hard.		Shear Strength	Fatigue Strength*
	in.	%		F	ksi	ksi			%	B	C	F	30T		500	3000	ksi	ksi
	mm.			C	MPa	MPa											MPa	MPa
Tube
TL03	0.212	76	TYP	68	69	63			26	84	-	-	-		-	-	-	-
	5.4			20	476	434			26	84	-	-	-		-	-	-	-
Flat Products
TF00	0.04	0	TYP	68	51	36			22	59	-	-	-		-	-	-	-
	1			20	352	248			22	59	-	-	-		-	-	-	-
TB00	0.04	0	TYP	68	34	19			40	16	-	-	-		-	-	-	-
	1			20	234	131			40	16	-	-	-		-	-	-	-
Rod
TH04	0.5	60	TYP	68	77	65			16	82	-	-	-		-	-	-	-
	12.7			20	531	448			16	82	-	-	-		-	-	-	-
TB00	0.5	0	TYP	68	45	14			40	-	-	-	-		-	-	-	-
	12.7			20	310	97			40	-	-	-	-		-	-	-	-
TF00	2	0	TYP	68	70	65			18	75	-	-	-		-	-	-	-
	51			20	483	448			18	75	-	-	-		-	-	-	-
TF00	0.5	0	TYP	68	70	55			21	70	-	-	-		-	-	-	-
	12.7			20	483	379			21	70	-	-	-		-	-	-	-
TD10	0.156	91	TYP	68	74	73			5	-	-	-	-		-	-	-	-
	3.96			20	510	503			5	-	-	-	-		-	-	-	-
Tube
TD04	0.212	76	TYP	68	59	57			21	67	-	-	-		-	-	-	-
	5.4			20	407	393			21	67	-	-	-		-	-	-	-
Rod
TF00	1	0	TYP	68	72	65			18	80	-	-	-		-	-	-	-
	25.4			20	496	448			18	80	-	-	-		-	-	-	-
TF00	4	0	TYP	68	55	43			25	68	-	-	-		-	-	-	-
	102			20	379	296			25	68	-	-	-		-	-	-	-
Flat Products
TD00	0.04	50	TYP	68	53	51			6	66	-	-	-		-	-	-	-
	1			20	365	352			6	66	-	-	-		-	-	-	-
Tube
O61	0.094	0	TYP	68	40	15			50	-	-	59	-		-	-	-	-
	2.4			20	276	103			50	-	-	59	-		-	-	-	-
Flat Products
TH01	0.04	50	TYP	68	67	59			14	79	-	-	-		-	-	-	-
	1			20	462	407			14	79	-	-	-		-	-	-	-
Rod
TD04	0.5	60	TYP	68	57	56			11	65	-	-	-		-	-	-	-
	12.7			20	393	386			11	65	-	-	-		-	-	-	-
TH10	0.156	90	TYP	68	86	77			14	-	-	-	-		-	-	-	-
	3.96			20	593	531			14	-	-	-	-		-	-	-	-
TF00	3	0	TYP	68	65	55			18	70	-	-	-		-	-	-	-
	76			20	448	379			18	70	-	-	-		-	-	-	-
Plate
TF00	3	0	TYP	68	56	40			30	68	-	-	-		-	-	-	-
	76			20	386	276			30	68	-	-	-		-	-	-	-
TF00	2	0	TYP	68	58	42			25	70	-	-	-		-	-	-	-
	51			20	400	290			25	70	-	-	-		-	-	-	-