2A12 LY12 - GB /T 3191-2019

Grade	2A12
Old Grade
Corresponding Standard	GB /T 3191-2019 Extrusion rods and bars of aluminium and aluminium alloys
Classification	Aluminum and Aluminum Alloys

2A12 Mechanical Properties

condition	Mark	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
Bars; d≤22	2A12T4	T42、T4	≥390	≥255	≥12
Bars; 22<d≤150	2A12T4	T42、T4	≥420	≥275	≥10
Bar; 150<d≤250	2A12T1	T42	≥380	≥260	≥6

① O = annealed ;
② H = work hardened;
③ T6 = solution heat treated + artificial aged;
④ T1 = high temperature molding + natural aged;
⑤ T3 = after solution heat treated, cold processing, and then natural aged to a basically stable;
⑥ T4 = after solution heat treated, natural aged to a basically stable;
⑦ T5 = cooled by high temperature molding, and then artificially aged to a basically stable;
⑧ T7 = after solution heat treated, overaged;
⑨ T8 = after solution heat treated, cold processing , and then artificial aged
◎ d = round rod diameter or thickness of square rod or hexagonal rod, t = square rod or hexagonal rod thickness, unit mm

Approximate Comparison Table Wrought aluminum and aluminum alloy

China		United States		International Organization for Standardization		Germany		European Standard	Russia
GB	ISC	ASTM	UNS	ISO	Numerical Grade	DIN EN/DIN	W-Nr.	EN	GOST
2A12 (LY12)	2024	2024	A92024	AlCu4Mg1	A92024	AlCu4Mg2	3.1355 A92024	EN-AW-AlCu4Mg1	Д16/160

2A12 Corresponding Standards(Same grade name, different standards)

1	GB /T 3190-2008
	2A12 (LY12)
2	GB /T 3190-2020
	2A12 (LY12)
3	GB /T 3191-2019
	2A12 (LY12)
4	GJB 1741A-2008
	2A12
5	GJB 2053A-2008
	2A12
6	YS /T 439-2001
	2A12 (LY12)
7	GJB 1741-1993
	2A12 2024 (LY12)
8	GJB 2379-1995
	2A12 LY12 十二号硬铝
9	GJB 2662A-2008
	2A12 (LY12)
10	GJB 6470-2008
	2A12
11	GB /T 3880.1-2012
	2A12 (LY12)

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