Saltar navegación principal
Normas ASTM – AENOR
ASTM E367-16

ASTM E367-16

Standard Test Methods for Chemical Analysis of Ferroniobium

Fecha:
2016-12-27 /Active
Significance and Use:

4.1 These test methods for the chemical analysis of ferroniobium alloy are primarily intended to test such materials for compliance with compositional specifications such as Specification A550. It is assumed that all who use these test methods will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory.

Scope:

1.1 These test methods cover the chemical analysis of ferroniobium having chemical compositions within the following limits:

 

Element

Composition, %

 

Aluminum

2.00 max

 

Carbon

0.30 max

 

Chromium

2.00 max

 

Cobalt

0.25 max

 

Lead

0.01 max

 

Manganese

3.00 max

 

Niobium

40.00 to 75.00

 

Phosphorus

0.05 max

 

Silicon

4.00 max

 

Sulfur

0.03 max

 

Tantalum

7.00 max

 

Tin

0.15 max

 

Titanium

5.00 max

 

Tungsten

0.50 max

1.2 The test methods appear in the following order:

 

Sections

Separation of Niobium, Tantalum, and Titanium by the Ion-Exchange Test Method

15 and 16

 

 

Titanium by the Spectrophotometric Test Method [0.05 % to 5.0 %]

17 – 21

 

 

Niobium by the Gravimetric Test Method [40 % to 75 %]

22 – 23

 

 

Tantalum by the Gravimetric Test Method [1 % to 7 %]

24 – 25

 

 

Tantalum by the Spectrophotometric Test Method [0.25 % to 1 %]

26 – 30

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 6, and specific warning statements in 11.1.

Keywords:
chemical analysis; ferroniobium; niobium; tantalum; titanium;
43,38
Idioma Formato

Formato físico y digital

Nota: Precios sin IVA ni gastos de envío

Añadir a la cesta