C17200 - ASTM B194-2015

Grade	C17200
Corresponding Standard	ASTM B194-2015 Standard Specification for Copper-Beryllium Alloy Plate, Sheet, Strip, and Rolled Bar
Classification	Copper and Copper Alloys

C17200 Chemical Element Composition Content (%)

Component	Si	Be	Al	More
Minimum Value	-	1.8	-	Cu:余量；Ni+Co≥0.2；Ni+Co+Fe≤0.6
Maximum Value	0.2	2	0.2	Cu:余量；Ni+Co≥0.2；Ni+Co+Fe≤0.6

C17200 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Hardness HBW
棒材,厚板,薄板,带材	Precipitation hardening - at (TF00)	1140~1345	≥965	≥3	HR ≥36
棒材,厚板,薄板,带材;t≤4.78	1/4-Hard + Precipitation Heat Treatment - 1/4HT (TH01)	1205~1415	≥1035	≥2.5	≥36
棒材,厚板,薄板,带材;t≤4.78	1/2-Hard + Precipitation Heat Treatment - 1/2HT (TH02)	1275~1480	≥1105	≥1	≥38
棒材,厚板,薄板,带材;t≤4.78	Hard + Precipitation Heat Treatment - HT (TH04)	1310~1520	≥1140	≥1	≥38
棒材,厚板,薄板,带材;4.78<t≤9.53	Hard + Precipitation Heat Treatment - HT (TH04)	1240~1480	≥1105	≥1	≥38
棒材,厚板,薄板,带材;9.53<t≤25.4	Hard + Precipitation Heat Treatment - HT (TH04)	1240~1450	≥1070	≥1	≥38
棒材,厚板,薄板,带材;25.4<t≤50.8	Hard + Precipitation Heat Treatment - HT (TH04)	1205~1415	≥1035	≥2	≥37
Bars, thick plates, thin plates, strips; t > 50.8	Hard + Precipitation Heat Treatment - HT (TH04)	1140~1380	≥895	≥2	≥36
棒材,厚板,薄板,带材	Milling hardening - AM (TM00)	690~760	485~660	≥16	≥95
棒材,厚板,薄板,带材	Milling hardening - 1/4 HM (TM01)	760~825	550~760	≥15	≥20
棒材,厚板,薄板,带材	Milling hardening - 1/2 HM (TM02)	825~930	655~860	≥12	≥23
棒材,厚板,薄板,带材	hard(mill hardened)-HM(TH04)	930~1035	760~930	≥9	≥28
棒材,厚板,薄板,带材	spriing hard(mill hardened)-SHM(TM05)	1035~1105	860~965	≥9	≥31
棒材,厚板,薄板,带材	mill hardened-XHM(TM06)	1070~1210	930~1170	≥4	≥32
棒材,厚板,薄板,带材	Extra spring hard-XHMS(TM08)	1210~1310	1035~1240	≥3	≥33

1 Approximate Comparison Table Processing of High Copper Alloys

China		Japan	United States		International Organization for Standardization		Russia
GB	ISC	JIS	ASTM	UNS	ISO	Numerical Grade	GOST
TBe1.9 QBe1.9	T17710	C1720 C17200	97.5Cu-1.9Be-.3Co-.2Ti	C17200	CuBe1.9CoTi	C17200	БрБНТ1.9

2 Approximate Comparison Table Processing of High Copper Alloys

China		Japan	United States		International Organization for Standardization		Germany		European Standard		Russia
GB	ISC	JIS	ASTM	UNS	ISO	Numerical Grade	DIN EN/DIN	W-Nr.	EN	Numerical Grade	GOST
TBe2 QBe2	T17720	C1720 C17200	97.8Cu-1.9Be-.3Co	C17200	CuBe2	C17200	CuBe2	C17200 2.1247	CuBe2	CW101C	БрБН2

C17200 Corresponding Standards(Same grade name, different standards)

1	ASTM B196/196M-2018
	C17200 (Alloy 25)
2	ASTM B194-2015
	C17200

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