Norm

ASTM B860 - 13 en

Standard Specification for Zinc Master Alloys for Use in Hot Dip Galvanizing

  • Deze norm is ingetrokken sinds 01-10-2015

45,11 54,58 Incl BTW

Over deze norm

Status Ingetrokken
Aantal pagina's 3
Gepubliceerd op 01-02-2013
Taal Engels

1.1 This specification covers zinc master alloys which are used in hot dip galvanizing for the purpose of adjusting the concentration of certain alloying elements in the molten zinc bath. Table 1 covers the chemical composition of these materials which include six master alloys of zinc-aluminum (brightener) and one master alloy of zinc-antimony.

 

 ASTM

  Common

 

 UNS

 

Type A-1

90/10 Zn/Al

High Purity

Z30750

 

Type A-2

90/10 Zn/Al

Low Purity

Z31710

 

Type A-3

95/5  Zn/Al

High Purity

Z30503

 

Type A-4

95/5  Zn/Al

Low Purity

Z31510

 

Type A-5

96/4  Zn/Al

High Purity

Z31520

 

Type A-6

96/4  Zn/Al

Low Purity

Z30504

 

Type S-1

90/10 Zn/Sb

 

Z55710


TABLE 1 Chemical Requirements Composition, % (Range or Maximum Value)A

Type A-1

90 % Zinc–10 % Aluminum (90/10 Zn/Al)

High Purity

Type A-2

90 % Zinc–10 % Aluminum (90/10 Zn/Al)

Low Purity

Type A-3

95 % Zinc–5 % Aluminum (95/5 Zn/Al)

High Purity

Type A-4

95 % Zinc–5 % Aluminum (95/5 Zn/Al)

Low Purity

Type A-5

96 % Zinc–4 % Aluminum (96/4 Zn/Al)

High Purity

Type A-6

96 % Zinc–4 % Aluminum (96/4 Zn/Al)

Low Purity

Type S-1

90 % Zinc–10 % Antimony (90/10 Zn/Sb)

 

UNSB

Type A-1
90/10 Zn/Al
 Z30750

Type A-2
90/10 Zn/Al
 Z31710

Type A-3
95/5 Zn/Al
 Z30503

Type A-4
95/5 Zn/Al
 Z31510

Type A-5
96/4 Zn/Al
Z31520

Type A-6
96/4 Zn/Al
Z30504

Type S-1
90/10 Zn/Sb
  Z55710

Fe

0.05 max

0.15 max

0.05 max

0.15 max

0.05 max

0.15 max

0.03 max

Pb

0.005 max

0.4 max

0.005 max

0.4 max

0.005 max†

0.4 max

0.015 max

Cd

0.004 max

...

0.004 max

...

0.004 max

...

0.003 max

Cu

0.035 max

0.5 max

0.035 max

0.5 max

0.035 max

0.5 max

0.003 max

Mg

...

...

...

...

0.06 max

0.06 max

 

Sn

0.003 max

...

0.003 max

...

0.003 max

...

0.01 max

As

...

...

...

...

...

...

0.015 max

Al

9.5–10.5

9.5–10.5

4.5–5.5

4.5–5.5

4.0-4.5

4.0-4.5

...

SbC

...

...

...

...

...

...

9.5–10.5

Others, Total

0.01 max

0.25 max

0.01 max

0.25 max

0.01 max

0.25 max

0.03 max

ZnD

Remainder

Remainder

Remainder

Remainder

Remainder

Remainder

Remainder

A The following applies to all specified limits in this table: For purposes of determining conformance with this specification, an observed value obtained from analysis shall be rounded off to the nearest unit in the last right-hand place of figures used in expressing the limiting value, in accordance with the rounding method of Practice E29.
B UNS numbers in conformance with Practice E527.
C Chemical method under development.
D For information only. Quantitative determination of this element is not required. Zinc is assumed to be the difference between 100 % and the sum of those elements listed above.
† Corrected editorially.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

Details

ICS-code 77.120.60
Engelse titel Standard Specification for Zinc Master Alloys for Use in Hot Dip Galvanizing
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