C103 - BS 2870-1980

Grade	C103
Corresponding Standard	BS 2870-1980 Rolled Copper and Copper Alloys: Sheet, Strip and Foil
Classification	Copper and Copper Alloys

C103 Chemical Element Composition Content (%)

Component	Cu	Pb	Bi	More
Minimum Value	99.95	-	-	杂质总和≤0.03*
Maximum Value	-	0.005	0.001	杂质总和≤0.03*

C103 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 Copper and Copper Alloy

China	Japan	United States	International Organization for Standardization	Germany	France	Russia	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	GOST	BS EN/BS
TU2	C1020	C10200	Cu-OF	OF-Cu	Cu-C1	М1ъ	C103

C103 Corresponding Standards(Same grade name, different standards)

1	BS 2874-1986
	C103
2	BS 2870-1980
	C103

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