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GOST 17711-93

STATE P 57376-2016 GOST 193-2015 GOST 27981.5-2015 GOST 27981.2-2015 GOST 27981.1-2015 GOST 13938.11-2014 GOST P 56240-2014 GOST 859-2014 GOST P 55685-2013 STATE P 54922-2012 STATE STANDARD P 54310-2011 GOST 31382-2009 STATE R 52998-2008 GOST 859-2001 GOST 6674.4-96 GOST 6674.3-96 GOST 6674.2-96 GOST 6674.1-96 GOST 4515-93 GOST 28515-97 GOST 17328-78 GOST 614-97 GOST 15527-70 GOST 13938.13-77 GOST 13938.13-93 GOST 1020-77 GOST 5017-2006 GOST 1652.11-77 GOST 15027.12-77 GOST 15027.11-77 GOST 493-79 GOST 1953.9-79 GOST 23859.2-79 GOST 1953.5-79 GOST 1953.3-79 GOST 1953.12-79 GOST 1953.6-79 GOST 15027.18-86 GOST 27981.2-88 GOST 27981.5-88 GOST 15027.5-77 GOST 1652.12-77 GOST 15027.8-77 GOST 1652.7-77 GOST 15027.6-77 GOST 15027.7-77 GOST 1652.2-77 GOST 1652.4-77 GOST 15027.2-77 GOST 1652.8-77 GOST 1652.3-77 GOST 13938.6-78 GOST 13938.7-78 GOST 13938.1-78 GOST 13938.2-78 GOST 13938.4-78 GOST 13938.8-78 GOST 13938.10-78 GOST 13938.12-78 GOST 23859.8-79 GOST 1953.1-79 GOST 613-79 GOST 9716.2-79 GOST 23912-79 GOST 23859.1-79 GOST 23859.4-79 GOST 1953.2-79 GOST 20068.1-79 GOST 9717.3-82 GOST 9717.1-82 GOST 27981.4-88 GOST 28057-89 GOST 6674.5-96 GOST 23859.11-90 GOST 24978-91 GOST 15027.14-77 GOST 15027.10-77 GOST 15027.4-77 GOST 1652.6-77 GOST 1652.10-77 GOST 15027.9-77 GOST 13938.5-78 GOST 13938.11-78 GOST 18175-78 GOST 13938.3-78 GOST 23859.6-79 GOST 1953.4-79 GOST 1953.8-79 GOST 1953.7-79 GOST 23859.9-79 GOST 1953.11-79 GOST 1953.15-79 GOST 1953.10-79 GOST 1953.16-79 GOST 23859.5-79 GOST 23859.3-79 GOST 9716.3-79 GOST 1953.14-79 GOST 15027.16-86 GOST 15027.17-86 GOST 27981.6-88 GOST 27981.1-88 GOST 15027.20-88 GOST 17711-93 GOST 1652.1-77 GOST 15027.13-77 GOST 1652.5-77 GOST 15027.1-77 GOST 1652.13-77 GOST 1652.9-77 GOST 15027.3-77 GOST 13938.9-78 GOST 23859.10-79 GOST 193-79 GOST 20068.2-79 GOST 1953.13-79 GOST 23859.7-79 GOST 9716.1-79 GOST 20068.3-79 GOST 24048-80 GOST 9717.2-82 GOST 15027.15-83 GOST 15027.19-86 GOST 27981.3-88 GOST 20068.4-88 GOST 27981.0-88 GOST 13938.15-88 GOST 6674.0-96

GOST 17711−93 Alloys copper-zinc (brass) foundries. Brand


GOST 17711−93

Group 51

INTERSTATE STANDARD


ALLOYS COPPER-ZINC (BRASS) FOUNDRIES

Brand

Cast copper-zinc alloys (brass). Grades


ISS 77.120.30
OKP 41 1330

Date of introduction 1995−01−01


Preface

1. DEVELOPED by the Interstate technical Committee 106 «Tsvetmetprokat», State scientific-research and project Institute of non-ferrous metals (Giprotsvetmetobrabotka)

INTRODUCED by Gosstandart of Russia

2. ADOPTED by the Interstate Council for standardization, Metrology and certification (Protocol No. 4−93 of 19 October 1993)

The adoption voted:

   
The name of the state
 The name of the national authority for standardization
The Republic Of Armenia
 Armastajad
The Republic Of Belarus
 Belstandart
The Republic Of Kazakhstan
 Gosstandart Of The Republic Of Kazakhstan
The Republic Of Moldova
 Moldovastandart
Russian Federation
 Gosstandart Of Russia
Turkmenistan
 Turkmenistanand
The Republic Of Uzbekistan
 Standards
Ukraine
 Gosstandart Of Ukraine

3. Resolution of the Committee of the Russian Federation for standardization, Metrology and certification from 02.06.94 160 N interstate standard GOST 17711−93 introduced directly as state standard of the Russian Federation from January 1, 1995

4. REPLACE GOST 17711−80

5. REPRINTING. January 2002

INFORMATION DATA

REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

   
The designation of the reference document referenced
 Item number
GOST 1497−84
 5
GOST 1652.1−77 — GOST 1652.13−77
 2
GOST 9012−59
 6



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

1. Brand and chemical composition of copper-zinc alloys shall conform to the requirements given in table.1; mechanical properties are given in table.2.

Table 1

                   
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
  
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
  



Extension table 1

                       
The name of the alloy Grade Chemical composition, %
    impurity, not more than
    lead
 silicon
 tin
 antimony
 Mar
Ganz
 iron
 aluminium
niya
 Foz
fora
 Nickel
 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
                      
Brass manganese-lead — silicon
 Lc38mc2s2 - 0,4 0,5 0,1 - 0,8 0,8 0,05 1,0 2,2
Brass aluminum Lc37mc2s2k
 As
 Bi
 0,6
 0,1
 -
 0,7
 0,7
 0,1
 1,0
 1,7
Brass tin-lead
                      
Brass aluminum — iron-manganese LC30A3
 0,05
 0,01
 0,7
 0,1
 0,5
 0,8
 -
 0,05
 0,3
 2,6
  LC25S2
 0,7 0,3
 -
 0,2
 0,5
 0,7
 0,3
 -
 1,0
 1,5
Brass siliceous Lc23a6zh3mc2
 - 0,5
 0,7
 0,1
 -
 -
 -
 -
 1,0
 1,8
Brass pebble lead   0,7 0,3                
  LC16K4
 0,5
 -
 0,3
 0,1
 0,8
 0,6
 0,04
 0,1
 0,2
 2,5
  LC14K3S3
 -
 -
 0,3
 0,1
 1,0
 0,6
 0,3
 -
 0,2
 2,3
Notes:
1. Mass fraction of Nickel in the brass are allowed for the expense of copper and the amount of impurities is not included.
2. At the customer’s request mass fraction of lead in brass grade Lc40sd allowed 1,2−2,0%.
3. 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.
4. In brass brand Lc40mc3zh used for casting propellers, the mass fraction of copper should be 55−58%, aluminium 0.8%, lead — not more than 0.3%.
5. Impurities that are not listed in table.1, are taken into account in the total amount of impurities.
6. By agreement between manufacturer and consumer in brass brand Lc38mc2s2 mass fraction of lead allowed 1,2−2,0%.

Mechanical properties copper-zinc alloys


Table 2

           
Brand of brass
 Method of casting

Rupture strength ГОСТ 17711-93 Сплавы медно-цинковые (латуни) литейные. Марки,
N/mmГОСТ 17711-93 Сплавы медно-цинковые (латуни) литейные. Марки
(kgf/mmГОСТ 17711-93 Сплавы медно-цинковые (латуни) литейные. Марки)

Take
tional elongation
ГОСТ 17711-93 Сплавы медно-цинковые (латуни) литейные. Марки, %

 Brinell hardness number, HB
 An exemplary purpose of casting
    not less than
  
LC40S
 P

K, C		 215 (22)

215 (22)		 12

20		 70

80		 For casting of fittings, bushes and cages ball and roller bearings
           
Lc40sd
 D

To
 196 (20)

264 (27)
 6

18

 70

100
 For the injection molding of fittings (sleeves, tees, reducers), the cages of bearings employed in air or fresh water
Lc40mc1,5
 P

K, C
 372 (38)

392 (40)
 20

20
 100

110
 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
Lc40mc3zh
 P

To

D
 441 (45)

490 (50)

392 (40)
 18

10
 90

100
 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
Lc40mc3a
 K, C
 441 (45)
 15
 115
 For the manufacture of parts with a simple configuration
Lc38mc2s2
 P

To
 245 (25)

343 (35)
 15

10
 80

85
 For the manufacture of structural parts and equipment for ships; anti-friction parts with a simple configuration (bushings, bearings, sliders, valves, railway bearings)
Lc37mc2s2k
 To
 343 (35)
 2
 110
 Anti-friction parts, fittings
LC30A3
 P

To
 294 (30)

392 (40)
 12

15
 80

90
 For the manufacture of corrosion-resistant parts used in shipbuilding and mechanical engineering
LC25S2
 P
 146 (15)
 8
 60

 For the manufacture of fittings for hydraulic systems of vehicles
Lc23a6zh3mc2
 P

K, P
 686 (70)

705 (72)
 7

7
 160

165
 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)
LC16K4
 P

To
 294 (30)

343 (35)
 15

15
 100

110
 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.)
LC14K3S3
 To

P
 294 (30)

245 (25)
 15

7
 100

90
 For bearings, bushings


Note. The symbols of the methods of casting:

P — sand casting precision casting mold;

K — chill casting;

D — die casting;

C — centrifugal casting.

2. Determination of chemical composition of alloys is carried out according to GOST 1652.1 — GOST 1652.13. Allowed to determine the chemical composition of alloys other methods to ensure accuracy not lower these standards. If there is disagreement in the assessment of the chemical composition determination is carried out according to GOST 1652.1 — GOST 1652.13.

3. Mechanical properties of alloys are determined on separately cast samples or samples made from separately cast samples. When pouring the sample needs to be powered for its entire length. The diameter of the working part of the samples of 10 mm gauge length — 50 mm. the Number of samples specified in normative and technical documentation for specific products.

4. The method of casting of specimens and samples shall conform to the method of manufacturing castings.

To determine the mechanical properties in the casting under pressure or centrifugal method is allowed to pour the sample in the mold.

5. The test specimens in tension is carried out according to GOST 1497.

6. Hardness on the Brinell hardness is carried out according to GOST 9012.