Brass L70
Brass LO70-1
Brass LMZA57-3-1
Brass LMzAJKS70-7-5-2-2-1
Brass LMZh57-1,5-0,75
Brass LMtsKA58-2-1-1
Brass LMtsKNS58-3-1,5-1,5-1
Brass LMtsKNSA58-3-1,5-1,5-1
Brass LMtsSKa58-2-2-1-1
Brass LMsh68-0,05
Brass LN65-5
Brass LNKMts49-10-0,3-0,2
Brass LNKoMts49-9-0,2-0,2
Brass ЛНМц60-9-5
Brass LO60-1
Brass LO62-1
Brass LKS65-1,5-3
Brass LO90-1
Brass LOK59-1-0.3
Brass LOMNA49-0,5-10-0,4-0,4
Brass Lomsh70-1-0.04
Brass Lomsh70-1-0.05
Brass LS58-2
Brass LS58-3
Brass LS59-1
Brass LS59-1B
Brass LS59-2
Brass LS60-1
Brass LS63-3
Brass LS64-2
Brass LS74-3
Brass LA85-0.5
Brass L59
Brass L60
Brass L63
Brass L66
Brass L68
Brass L70
Brass L72
Brass L75mk
Brass L80
Brass L85
Brass L90
Brass L96
Brass LA77-2
Brass LA77-2u
Brass LMZ58-2
Brass LAJ60-1-1 (LAJ60-1-1L)
Brass LAZHMTS52-2-1-1,5-1
Brass LAMsh77-2-0,04
Brass LAMSh77-2-0,05
Brass LAN59-3-2
Brass LANKMZ 75-2-2,5-0,5-0,5 (alloy 156)
Brass LAF94-0,5-0,15
Brass LZMc59-1-1
Brass LZhS58-1-1
Brass LC62-0.5
Brass LK75B
Brass LCAN80-1-1,9-5,8
Brass ЛКАНМЦ75-2-2,5-0,5-0,5
Brass LCBO62-0,2-0,04-0,5
Designation
| Name |
The value |
| Designation GOST Cyrillic |
Л70 |
| Designation GOST Latin |
L70 |
| Transliteration |
L70 |
| The chemical elements |
Л70 |
Description
Brass L70 is used: for the manufacture of semi-finished products (strips, sheets, bands, pipes); radiator strips; heat exchangers; parts obtained by a deep hood; drawn and cold-rolled pipes used in heat exchangers.
Note
Simple (double) brass.
Brass L70 very well deformed in a cold condition; suitable for soldering, for use on steel.
Standards
| Name |
Code |
Standards |
| Tapes |
В54 |
GOST 15527-2004, GOST 2208-2007, TU 48-21-5036-83, TU 48-21-656-85 |
| Pipes from non-ferrous metals and alloys |
В64 |
GOST 21646-2003 |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 28873-90 |
| Sheets and stripes |
В53 |
TU 48-21-5031-91 |
Chemical composition
| Standard |
Fe |
Cu |
Zn |
Sb |
Pb |
Bi |
| GOST 2208-2007 |
≤0.07 |
69-71 |
The rest |
≤0.002 |
≤0.05 |
≤0.002 |
Cu is the basis.
According to GOST 15527-2004, GOST 2208-2007 the amount of other elements should be ≤ 0,20%. In brass, the mass fraction of nickel is allowed up to 0.30% due to the mass fraction of copper, which is not taken into account in the sum of other impurities. For antimagnetic brass, the mass fraction of iron should not exceed 0.030%. In brass, used for the production of condenser tubes and heat exchangers, the mass fraction of arsenic is allowed up to 0.060% due to the mass fraction of copper, which is not taken into account in the sum of other impurities.
Mechanical characteristics
| σB, MPa |
d10 |
Brinell hardness number, MPa |
HV, MPa |
| Strips and sheets cold rolled steel in the delivery state according to GOST 2208-2007 (samples) |
| 270-360 |
≥40 |
≥70 |
≥75 |
| 340-460 |
≥20 |
≥100 |
≥115 |
| ≥430 |
≥10 |
≥125 |
≥140 |
| Tubes round, drawn and cold-rolled steel in the delivery state according to GOST 21646-2003 (samples) |
| ≥340 |
≥35 |
- |
- |
Description mechanical marks
| Name |
Description |
| σB |
Limit short-term strength |
| d10 |
Elongation after rupture |
| HV |
The Vickers hardness |
Physical characteristics
| Temperature |
Е, ГПа |
r, кг/м3 |
l, Вт/(м · °С) |
R, НОм · м |
| 20 |
115 |
8610 |
1214 |
69 |
A description of the physical symbols
| Name |
Description |
| l |
Coefficient of thermal conductivity |
