GOST 17711-93. Copper-zinc alloys, foundry. Brands

You are interested in GOST 17711−93. «The alloys copper-zinc, cast," from the supplier Alekhlas? Here you will find the necessary information on the topic.

Scope

This standard establishes the brand copper-zinc alloys (brass) castings.

Brand

Brand and chemical composition of copper-zinc alloys shall conform to the requirements given in table

The name of the alloy	Grade	Chemical composition, %
		the main components
		copper	aluminum	iron	manganese	silicon	tin	lead	zinc
Brass lead	LC40S	57,0−61,0	-	-	-	-	-	0,8−2,0
Brass lead	Lc40sd	58,0−61,0	-	-	-	-	-	0,8−2,0
Brass manganese	Lc40mc1,5	57,0−60,0	-	-	1,0−2,0	-	-	-
Brass manganese — iron	Lc40mc3zh	53,0−58,0	-	0,5−1,5	For 3.0−4.0	-	-	-
Brass manganese — aluminum	Lc40mc3a	55,0−58,5	0,5−1,5	-	2,5−3,5	-	-	-
Brass manganese — lead	Lc38mc2s2	57,0 60,0	-	-	1,5−2,5	-	-	1,5−2,5	The rest
Brass manganese — lead — silicon	Lc37mc2s2k	57−60	-	-	1,5−2,5	Of 0.5−1.3	-	1,5−3,0
Brass aluminum	LC30A3	66,0−68,0	2.0 to 3.0	-	-	-	-	-
Brass tin — lead	LC25S2	70,0−75,0	-	-	-	-	0,5−1,5	1,0−3,0
Brass aluminum — iron — manganese	Lc23a6zh3mc2	64,0−68,0	4,0−7,0	2,0−4,0	1,5−3,0	-	-	-
Brass siliceous	LC16K4	78,0−81,0	-	-	-	3,0−4,5	-	-
Brass pebble lead	LC14K3S3	77−81	-	-	-	2,5−4,5	-	2,0−4,0

The rest of the table

The name of the alloy	Grade	Chemical composition, %
		the main components
		lead	cream tion	tin	antimony	Mar Ganz	same — Lesa	aluminum	Foz fora	no — Kehl	just
Brass lead	LC40S	-	0,3	0,5	0,05	0,5	0,8	0,5	-	1,0	2,0
Brass lead	Lc40sd	-	0,2	0,3	0,05	0,2	0,5	0,2	-	1,0	1,5
Brass manganese	Lc40mc1,5	0,7	0,1	0,5	0,1	-	1,5	-	0,03	1,0	2,0
Brass manganese — iron	Lc40mc3zh	0,5	0,2	0,5	0,1	-	-	0,6	0,05	0,5	1,7
Brass manganese — aluminum	Lc40mc3a	0,2	0,2	0,5	0,05	-	1,0	-	0,03	1,0	1,5
Brass manganese — lead	Lc38mc2s2	-	0,4	0,5	0,1	-	0,8	0,8	0,05	1,0	2,2
Brass manganese-lead — silicon	Lc37mc2s2k	As 0,05	Bi 0,01	0,6	0,1	-	0,7	0,7	0,1	1,0	1,7
Brass aluminum	LC30A3	0,7	0,3	0,7	0,1	0,5	0,8	-	0,05	0,3	2,6
Brass tin — lead	LC25S2	-	0,5	-	0,2	0,5	0,7	0,3	-	1,0	1,5
Brass aluminum — iron — manganese	Lc23a6zh3mc2	0,7	0,3	0,7	0,1	-	-	-	-	1,0	1,8
Brass siliceous	LC16K4	0,5	-	0,3	0,1	0,8	0,6	0,04	0,1	0,2	2,5
Brass pebble lead	LC14K3S3	-	-	0,3	0,1	1,0	0,6	0,3	-	0,2	2,3
Mass fraction of Nickel in the brass are allowed for the expense of copper and the amount of impurities is not included. At the customer’s request mass fraction of lead in brass grade Lc40sd allowed 1,2−2,0%. In brass brand LC16K4 in agreement with the consumer allowed the mass fraction of aluminum to 0.1% in the manufacture of parts that do not require hydraulic density. In brass brand ЛЦ40МцЗЖ used for casting propellers, the mass fraction of copper should be 55−58%, aluminium 0.8%, lead — not more than 0.3%. Impurities that are not listed in table.1, are taken into account in the total amount of impurities. By agreement between manufacturer and consumer in brass brand Lc38mc2s2 mass fraction of lead allowed 1,2−2,0%.

Supplier — the company Avecho offers various types of products from alloys of brass domestic and foreign production that meets the requirements of the standards. Products are offered at affordable prices from the manufacturer. Supplier guaranteed timely delivery at any address specified by the consumer.

Mechanical properties of alloys

Given in the table:

Brand of brass	Method of casting	Rupture strength , MPa	Elongation %	Brinell hardness number, HB	An exemplary purpose of casting
		not less than
LC40S	P	215	12	70	For casting of fittings, bushes and cages ball and roller bearings
	K, C	215	20	80
Lc40sd	D	196	6	70	For the injection molding of fittings (sleeves, tees, reducers), the cages of bearings employed in air or fresh water
	To	264	18	100
Lc40mc1,5	P	372	20	100	For the manufacture of simple parts operating under impact loads, as well as parts of friction units operating in conditions of calm load at temperatures above 60 °C
	K, C	392	20	110
Lc40mc3zh	P	441	18	90	For the manufacture of a simple part configurations for critical applications and reinforcement of naval shipbuilding, operating at temperatures up to 300 °C; massive parts, propellers and blades for the tropics
	To	490	10	100
	D	392
Lc40mc3a	K, C	441	15	115	For the manufacture of parts with a simple configuration
Lc38mc2s2	P	245	15	80	For the manufacture of structural parts and equipment for ships; anti-friction parts with a simple configuration (bushings, bearings, sliders, valves, railway bearings)
	To	343	10	85
Lc37mc2s2k	To	343	2	110	Anti-friction parts, fittings
LC30A3	P	294	12	80	For the manufacture of corrosion-resistant parts used in shipbuilding and mechanical engineering
	To	392	15	90
LC25S2	P	146	8	60	For the manufacture of fittings for hydraulic systems of vehicles
Lc23a6zh3mc2	P	686	7	160	For the manufacture of critical parts operating at high specific and alternating loads, bending, and frictional parts (push screws, nuts adjusting screws of rolling mills, crowns worm wheels, bushings, etc. details)
	K, P	705	7	165
LC16K4	P	294	15	100	For the manufacture of complex configuration parts, fixtures and fittings, operating at temperatures up to 250 °C and exposed to hydrovodone tests; parts operating in an environment of sea water, provided that the cathodic protection (gear, friction components, etc.)
	To	343	15	110
LC14K3S3	To	294)	15	100	For bearings, bushings
	P	245	7	90

The symbols of the methods of casting:
P — sand casting precision casting mold;
K — chill casting;
D — die casting;
C — centrifugal casting.

Supplier — the company Alekhlas — offers to purchase assortment of various brass alloys Russian and foreign production. Products can be purchased at a price formed on the basis of European and world standards. Possible, wholesale and retail, for regular customers a flexible system of discounts.

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GOST 17711-93. Copper-zinc alloys, foundry. Brands

Scope

Brand

Mechanical properties of alloys