EN 4638:2010

Aerospace series - Blast media - Brown corundum, without iron

This standard specifies the characteristics of brown corundum without iron used as blast media for aerospace applications.

Luft- und Raumfahrt - Strahlmittel - Normalkorund, braun, eisenfrei

Diese Norm legt die Kenndaten von braunem, eisenfreiem Korund fest, der als Strahlmittel für Anwendungen in der Luft  und Raumfahrt vorgesehen ist.

Série aérospatiale - Produit de projetage - Corindon brun sans fer

Aeronavtika - Peskalna sredstva - Rjavi korund, brez železa

Ta standard opredeljuje značilnosti rjavega korunda brez železa, uporabljenega kot peskalno sredstvo za uporabo v aeronavtiki.

General Information

• Status: Published
• Publication Date: 20-Apr-2010
• Withdrawal Date: 30-Oct-2010
• ICS: 49.040 - Coatings and related processes used in aerospace industry
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 4 - Metallic
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 21-Apr-2010
• Completion Date: 21-Apr-2010
• Ref Project: SIST EN 4638:2010 - Aerospace series - Blast media - Brown corundum, without iron

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aeronavtika - Peskalna sredstva - Rjavi korund, brez železaLuft- und Raumfahrt - Strahlmittel - Normalkorund, braun, eisenfreiSérie aérospatiale - Produit de projetage - Corindon brun sans ferAerospace series - Blast media - Brown corundum, without iron49.040Prevleke in z njimi povezani postopki, ki se uporabljajo v letalski in vesoljski industrijiCoatings and related processes used in aerospace industryICS:Ta slovenski standard je istoveten z:EN 4638:2010SIST EN 4638:2010en01-julij-2010SIST EN 4638:2010SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4638
April 2010 ICS 49.040 English Version
Aerospace series - Blast media - Brown corundum, without iron Série aérospatiale - Produit de projetage - Corindon brun sans fer
Luft- und Raumfahrt - Strahlmittel - Normalkorund, braun, eisenfrei This European Standard was approved by CEN on 6 February 2010.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4638:2010: ESIST EN 4638:2010

Characteristics of corundum .5Annex B (normative)
Tyler type splitting method . 25Annex C (normative)
Stack Splitting Method . 28 SIST EN 4638:2010

Characteristics of corundum DESIGNATION: Brown corundum F 12 Main use: (for information) – Surface preparation
– Surface reconditioning GRAIN SIZE: 1,20 mm to 2,80 mmDESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOUR: Brown
1 ORIGIN:
Artificial 2 CHEMICAL COMPOSITION:
- Alumina ≥ 94 %
- Titanium oxide ≥ 2,5 %
- Iron oxide < 0,2 %
- Free silica < 1,5 % 3 CONTROLLED CHEMICAL COMPONENTS:
None 4 GRAIN SHAPE:
Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2 (Knoop hardness)
9 (Mohs hardness) 6 DENSITY: - True with pyknometer
- ≥ 3 940 kg/m3 7 GRAIN SIZE DISTRIBUTION:
GRAIN SIZE DISTRIBUTION ISO 565
TEST SIEVES - APERTURE 2,80 mm 2 mm 1,40 mm % RESIDUE 0 ≤ 20 ≥ 70 TEST SIEVES - APERTURE 1,20 mm
% REMAINDER ≤ 3
8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). SIST EN 4638:2010

– Surface reconditioning GRAIN SIZE: 1 mm to 2,40 mm DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOUR: Brown
1 ORIGIN:
Artificial 2 CHEMICAL COMPOSITION:
- Alumina ≥ 94 %
- Titanium oxide ≥ 2,5 %
- Iron oxide < 0,2 %
- Free silica < 1,5 % 3 CONTROLLED CHEMICAL COMPONENTS:
None 4 GRAIN SHAPE:
Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2 (Knoop hardness)
9 (Mohs hardness) 6 DENSITY: - True with pyknometer
- ≥ 3 940 kg/m3 7 GRAIN SIZE DISTRIBUTION:
GRAIN SIZE DISTRIBUTION ISO 565
TEST SIEVES - APERTURE 2,40 mm 1,70 mm 1,20 mm % RESIDUE 0 ≤ 20 ≥ 70 TEST SIEVES - APERTURE 1 mm
% REMAINDER ≤ 3
8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. SIST EN 4638:2010

DESIGNATION: Brown corundum F 16 Main use: (for information) – Surface preparation
– Surface reconditioning GRAIN SIZE: 850 µm to 2 mm DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOUR: Brown
1 ORIGIN:
Artificial 2 CHEMICAL COMPOSITION:
- Alumina ≥ 94 %
- Titanium oxide ≥ 2,5 %
- Iron oxide < 0,2 %
- Free silica < 1,5 % 3 CONTROLLED CHEMICAL COMPONENTS:
None 4 GRAIN SHAPE:
Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2 (Knoop hardness)
9 (Mohs hardness) 6 DENSITY: - True with pyknometer
- ≥ 3 940 kg/m3 7 GRAIN SIZE DISTRIBUTION:
GRAIN SIZE DISTRIBUTION ISO 565
TEST SIEVES - APERTURE 2 mm 1,40 mm 1 mm % RESIDUE 0 ≤ 20 ≥ 70 TEST SIEVES - APERTURE 850 µm
% REMAINDER ≤ 3
8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. SIST EN 4638:2010

DESIGNATION: Brown corundum F 20 Main use: (for information) – Surface preparation
– Surface reconditioning GRAIN SIZE: 710 µm to 1,70 mm DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOUR: Brown
1 ORIGIN:
Artificial 2 CHEMICAL COMPOSITION:
- Alumina ≥ 94 %
- Titanium oxide ≥ 2,5 %
- Iron oxide < 0,2 %
- Free silica < 1,5 % 3 CONTROLLED CHEMICAL COMPONENTS:
None 4 GRAIN SHAPE:
Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2 (Knoop hardness)
9 (Mohs hardness) 6 DENSITY: - True with pyknometer
- ≥ 3 940 kg/m3 7 GRAIN SIZE DISTRIBUTION:
GRAIN SIZE DISTRIBUTION ISO 565
TEST SIEVES - APERTURE 1,70 mm 1,18 mm 850 µm % RESIDUE 0 ≤ 20 ≥ 70 TEST SIEVES - APERTURE 710 µm
% REMAINDER ≤ 3
8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. SIST EN 4638:2010

DESIGNATION: Brown corundum F 22 Main use: (for information) – Surface preparation
– Surface reconditioning GRAIN SIZE: 600 µm to 1,40 mm DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOUR: Brown
1 ORIGIN:
Artificial 2 CHEMICAL COMPOSITION:
- Alumina ≥ 94 %
- Titanium oxide ≥ 2,5 %
- Iron oxide < 0,2 %
- Free silica < 1,5 % 3 CONTROLLED CHEMICAL COMPONENTS:
None 4 GRAIN SHAPE:
Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2 (Knoop hardness)
9 (Mohs hardness) 6 DENSITY: - True with pyknometer
- ≥ 3 940 kg/m3 7 GRAIN SIZE DISTRIBUTION:
GRAIN SIZE DISTRIBUTION ISO 565
TEST SIEVES - APERTURE 1,40 mm 1 mm 710 µm % RESIDUE 0 ≤ 20 ≥ 70 TEST SIEVES - APERTURE 600 µm
% REMAINDER ≤ 3
8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. SIST EN 4638:2010

DESIGNATION: Brown Corundum F 24 Main use: (for information) – Surface preparation
– Surface reconditioning GRAIN SIZE: 500 µm to 1,18 mm DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOUR: Brown
1 ORIGIN:
Artificial 2 CHEMICAL COMPOSITION:
- Alumina ≥ 94 %
- Titanium oxide ≥ 2,5 %
- Iron oxide < 0,2 %
- Free silica < 1,5 % 3 CONTROLLED CHEMICAL COMPONENTS:
None 4 GRAIN SHAPE:
Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2 (Knoop hardness)
9 (Mohs hardness) 6 DENSITY: - True with pyknometer
- ≥ 3 940 kg/m3 7 GRAIN SIZE DISTRIBUTION:
GRAIN SIZE DISTRIBUTION ISO 565 TEST SIEVES - APERTURE 1,18 mm 850 µm 600 µm % RESIDUE 0 ≤ 25 ≥ 65 TEST SIEVES - APERTURE 500 µm
% REMAINDER ≤ 3
8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. SIST EN 4638:2010

DESIGNATION: Brown corundum F 30 Main use: (for information) – Surface preparation
– Surface reconditioning GRAIN SIZE: 430 µm to 1 mm DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOUR: Brown
1 ORIGIN:
Artificial 2 CHEMICAL COMPOSITION:
- Alumina ≥ 94 %
- Titanium oxide ≥ 2,5 %
- Iron oxide < 0,2 %
- Free silica < 1,5 % 3 CONTROLLED CHEMICAL COMPONENTS:
None 4 GRAIN SHAPE:
Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2 (Knoop hardness)
9 (Mohs hardness) 6 DENSITY: - True with pyknometer
- ≥ 3 940 kg/m3 7 GRAIN SIZE DISTRIBUTION:
GRAIN SIZE DISTRIBUTION ISO 565
TEST SIEVES - APERTURE 1 mm 710 µm 500 µm % RESIDUE 0 ≤ 25 ≥ 65 TEST SIEVES - APERTURE 425 µm
% REMAINDER ≤ 3
8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. SIST EN 4638:2010

DESIGNATION: Brown corundum F 36 Main use: (for information) – Surface preparation
– Surface reconditioning GRAIN SIZE: 360 µm to 850 µm DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOUR: Brown
1 ORIGIN:
Artificial 2 CHEMICAL COMPOSITION:
- Alumina ≥ 94 %
- Titanium oxide ≥ 2,5 %
- Iron oxide < 0,2 %
- Free silica < 1,5 % 3 CONTROLLED CHEMICAL COMPONENTS:
None 4 GRAIN SHAPE:
Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2 (Knoop hardness)
9 (Mohs hardness) 6 DENSITY: - True with pyknometer
- ≥ 3 940 kg/m3 7 GRAIN SIZE DISTRIBUTION:
GRAIN SIZE DISTRIBUTION ISO 565 (µm) TEST SIEVES - APERTURE 850 600 425 % RESIDUE 0 ≤ 25 ≥ 65 TEST SIEVES - APERTURE 355
% REMAINDER ≤ 3
8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. SIST EN 4638:2010

DESIGNATION: Brown corundum F 40 Main use: (for information) – Surface preparation
– Surface reconditioning GRAIN SIZE: 300 µm to 710 µm DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOUR: Brown
1 ORIGIN:
Artificial 2 CHEMICAL COMPOSITION:
- Alumina ≥ 94 %
- Titanium oxide ≥ 2,5 %
- Iron oxide < 0,2 %
- Free silica < 1,5 % 3 CONTROLLED CHEMICAL COMPONENTS:
None 4 GRAIN SHAPE:
Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2 (Knoop hardness)
9 (Mohs hardness) 6 DENSITY: - True with pyknometer
- ≥ 3 940 kg/m3 7 GRAIN SIZE DISTRIBUTION:
GRAIN SIZE DISTRIBUTION ISO 565 (µm) TEST SIEVES - APERTURE 710 500 355 % RESIDUE 0 ≤ 30 ≥ 65 TEST SIEVES - APERTURE 300
% REMAINDER ≤ 3
8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. SIST EN 4638:2010

DESIGNATION: Brown corundum F 46 Main use: (for information) – Surface preparation
– Surface reconditioning GRAIN SIZE: 250 µm to 600 µm DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOUR: Brown
1 ORIGIN:
Artificial 2 CHEMICAL COMPOSITION:
- Alumina ≥ 94 %
- Titanium oxide ≥ 2,5 %
- Iron oxide < 0,2 %
- Free silica < 1,5 % 3 CONTROLLED CHEMICAL COMPONENTS:
None 4 GRAIN SHAPE:
Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2 (Knoop hardness)
9 (Mohs hardness) 6 DENSITY: - True with pyknometer
- ≥ 3 940 kg/m3 7 GRAIN SIZE DISTRIBUTION:
GRAIN SIZE DISTRIBUTION ISO 565 (µm) TEST SIEVES - APERTURE 600 425 300 % RESIDUE 0 ≤ 30 ≥ 65 TEST SIEVES - APERTURE 250
% REMAINDER ≤ 3
8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. SIST EN 4638:2010

EN 4638:20
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