C104 - BS 2870-1980

Grade	C104
Corresponding Standard	BS 2870-1980 Rolled Copper and Copper Alloys: Sheet, Strip and Foil
Classification	Copper and Copper Alloys

C104 Chemical Element Composition Content (%)

Component	Fe	Ni	Cu	As	Pb	Sn	Se	Bi	Sb	O	Te	More
Minimum Value	-	-	99.85	-	-	-	-	-	-	-	-	杂质总和≤0.05*
Maximum Value	0.01	0.05	-	0.02	0.01	0.01	0.02	0.003	0.005	0.1	0.01	杂质总和≤0.05*

C104 Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %	Hardness HBW
0.5＜t≤10	Annealing O	≥210（B≤450） ≥210（B＞450）	≥35	HV ≤55
3＜t≤10	Rolled State M	≥210（B≤450） ≥210（B＞450）	≥35	HV ≤65
0.5＜t≤2	1/2H	≥240（B≤450） ≥240（B＞450）	≥10	HV 70~95
2＜t≤10	1/2H	≥240（B≤450） ≥240（B＞450）	≥15	HV 70~95
0.5＜t≤2	H	≥310（B≤450） ≥280（B＞450）	-	HV ≥90
2＜t≤10	H	≥310（B≤450） ≥280（B＞450）	-	HV ≥90

• 1/4H、1/2H、H、EH—The various harder tempers produced by cold rolling. For certain of the materials in this standard, these tempers may be produced by partial annealing.
• SH、ESH—Spring hard tempers produced by cold rolling of thinner material.
• W—Material that has been solution heat treated and will respond effectively to precipitation treatment.
• W（1/4H）、W（1/2H）、W（H）—Material that has been solution heat treated and subsequently cold worked to various harder tempers.
• W（1/4H）P、W（1/2H）P、W（H）P—Material that has been solution heat treated, cold worked and then precipitation treated.
• Wm—Mill-hardened material. Material that has been heat treated by the manufacturer and does not require further heat treatment. Designations for mill-hardened material are not necessarily indicative of the method of manufacture.
• W（1/4H）m、W（1/2H）m、W（H）m、W（EH）m、W（ESH）m—solution heat treatment and cold worked 1/4 hard and mill-hardened state, requiring no additional processing.

Approximate Comparison Table Processing Pure Copper, Silver Copper

China	United States	International Organization for Standardization	United Kingdom
GB	ASTM	ISO	BS EN/BS
T3	C12700	Cu-FRTP	C104

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!