QSn4-3 T50800 - YS /T 649-2018

Grade	QSn4-3
	T50800
Corresponding Standard	YS /T 649-2018 Extruded rod and bar of copper and copper alloys
Classification	Copper and Copper Alloys
Properties	Hardness Elasticity Corrosion Resistance Machinability

QSn4-3 Chemical Element Composition Content (%)

Component	Fe	P	Pb	Al	Zn	Sn	Other Total	More
Minimum Value	-	-	-	-	2.7	3.5	-	Cu:余量
Maximum Value	0.05	0.03	0.02	0.002	3.3	4.5	0.2	Cu:余量

"Other individual elements or other totals": The chemical composition includes elements not specified in the table. Analysis should only be conducted if these elements are suspected to be present, or if routine analysis suggests that their content may exceed the prescribed limits.

• The chemical composition of H96 and HSn61-0.8-1.8 rod materials shall comply with the provisions of this standard. The chemical composition of other grade rod materials shall comply with the corresponding provisions of GB/T 5231-2012.

QSn4-3 Mechanical Properties

diameter d mm	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %
d=40~120	≥275	≥30

Note: The mechanical properties of rod materials exceeding the specified dimensions shall be provided as actual test values or determined by agreement between the supplier and the customer.

QSn4-3 Corresponding Standards(Same grade name, different standards)

1	GB /T 5231-2012
	QSn4-3 T50800
2	GB /T 5231-2022
	QSn4-3 T50800
3	YS /T 649-2018
	QSn4-3 T50800
4	GB /T 3114-1994
	QSn4-3 T50800

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