Nord-Lock Originele Borgringen

Nord-Lock ontwierp de originele wigvergrendelingstechnologie die boutverbindingen fixeert, zelfs wanneer ze blootstaan aan extreme trilling en dynamische belastingen. Door de wig die onder boutkop en moer ontstaat, kunnen onze producten onmogelijk zomaar losdraaien.

Nord-Lock Steel Washers

Applications General steel applications
Material standard EN 1.7182
Size range M3-M130
#5 to 5"
Corrosion resistance Minimum 1,000 hours in salt spray test (according to ISO 9227)
Hardening Through hardened
Washer hardness* ≥ 465HV1
Coating Delta Protekt® KL100 zinc flake coating
Bolt grades Up to 12.9
Temperature range*** -50°C to 200°C
Product designation NL
NLsp
Laser marking type code flZn

 

* Washer hardness must be greater than the hardness of the mating surfaces in order to assure its mechanical function.

*** Temperature recommendations are based on information from the raw material supplier and testing. The locking function is not affected within the specified range.

Nord-Lock Stainless Steel Washers

Applications General stainless steel applications
Material standard EN 1.4404
Size range M3-M80 
#5 to 3 1/8"
Corrosion resistance PREN 27**
Hardening Surface hardened
Washer hardness* ≥ 520HV0,05
Bolt grades Up to A4-80
Temperature range*** -160°C to 500°C
Product designation NLss
NLspss
Laser marking type code SS

 

* In order to assure the unique mechanical locking function of the Nord-Lock washers, the hardness of the mating surfaces must be lower than the hardness of the Nord-Lock washers. 

** PREN (Pitting Resistance Equivalent Number) = %Cr + 3,3x%Mo + 16x%N. Figures in table valid for base material.

*** Temperature recommendations based on information from the raw material supplier and from tests. Locking function not affected within the specification.

Nord-Lock 254 SMO® Washers

Applications Corrosive environment – chloride rich environments, offshore, pumps, heat exchangers, nuclear, food, medical, processing
Material standard EN 1.4547
Size range M3-M39
#5 to 1 1/2"
Corrosion resistance PREN 45**
Hardening Surface hardened
Washer hardness* ≥ 600HV0,05
Bolt grades Up to A4-80
Temperature range*** -160°C to 500°C
Product designation NLss-254
NLspss-254
Laser marking type code 254

 

* In order to assure the unique mechanical locking function of the Nord-Lock washers, the hardness of the mating surfaces must be lower than the hardness of the Nord-Lock washers. 

** PREN (Pitting Resistance Equivalent Number) = %Cr + 3,3x%Mo + 16x%N. Figures in table valid for base material.

*** Temperature recommendations based on information from the raw material supplier and from tests. Locking function not affected within the specification.

 

Nord-Lock Alloy C-276 Washers

Applications Acidic environment – chemical industry, evaporators, offshore, downhole tooling
Material standard EN 2.4819 or equivalent
Size range M4-M20
#8 to 1 1/2"
Corrosion resistance PREN 68**
Hardening Surface hardened
Washer hardness* ≥ 520HV0,05
Temperature range*** -160°C to 500°C
Product designation NLss-276
NLspss-276
Laser marking type code 276

 

* In order to assure the unique mechanical locking function of the Nord-Lock washers, the hardness of the mating surfaces must be lower than the hardness of the Nord-Lock washers. 

** PREN (Pitting Resistance Equivalent Number) = %Cr + 3,3x%Mo + 16x%N. Figures in table valid for base material.

*** Temperature recommendations based on information from the raw material supplier and from tests. Locking function not affected within the specification.

Nord-Lock Alloy 718 Washers

Applications High temperatures – gas turbines, turbo charges, incinerators
Material standard EN 2.4668 or equivalent
Size range M4-M20
#5 to 1 1/2"
Corrosion resistance PREN 29**
Hardening Surface hardened
Washer hardness* ≥ 620HV0,05
Temperature range*** -160°C to 700°C
Product designation NLss-718
NLspss-718
Laser marketing type code 718

 

* In order to assure the unique mechanical locking function of the Nord-Lock washers, the hardness of the mating surfaces must be lower than the hardness of the Nord-Lock washers. 

** PREN (Pitting Resistance Equivalent Number) = %Cr + 3,3x%Mo + 16x%N. Figures in table valid for base material.

*** Temperature recommendations based on information from the raw material supplier and from tests. Locking function not affected within the specification.

All types of Nord-Lock washers

Material type
Steel Stainless
steel (ss)
254 SMO® ALLOY 
C-276
ALLOY
718
Applications
General steel applications General stainless steel applications Corrosive environment – chloride rich environments, offshore, pumps, heat exchangers, nuclear, food, medical, processing Acidic environment – chemical industry, evaporators, offshore, downhole tooling High temperatures – gas turbines, turbo charges, incinerators
Material standard
EN 1.7182 EN 1.4404 EN 1.4547 EN 2.4819 or equivalent EN 2.4668 or equivalent
Size range

M3-M130

#5 to 5"

M3-M80

#5 to 3 1/8"

M3-M39

#5 to 1 1/2"

M4-M20

#8 to 1 1/2"

M4-M20

#5 to 1 1/2"

Corrosion resistance
Minimum 1,000 hours in salt spray test (according to ISO 9227) PREN 27** PREN 45** PREN 68** PREN 29**
Hardening
Through hardened Surface hardened Surface hardened Surface hardened Surface hardened
Washer hardness*
≥ 465HV1 ≥ 520HV0,05 ≥ 600HV0,05 ≥ 520HV0,05 ≥ 620HV0,05
Coating
Delta Protekt® KL100 zinc flake coating - - - -
Bolt grades
Up to 12.9 Up to A4-80 Up to A4-80 Up to A4-80 Up to A4-80
Temperature range***
-50°C to 200°C -160°C to 500°C -160°C to 500°C -160°C to 500°C -160°C to 700°C
Product designation
NL
NLsp
NLss
NLspss
NLss-254
NLspss-254
NLss-276
NLspss-276
NLss-718
NLspss-718
Laser marking type code
flZn SS 254 276 718

 

* In order to assure the unique mechanical locking function of the Nord-Lock washers, the hardness of the mating surfaces must be lower than the hardness of the Nord-Lock washers. 

** PREN (Pitting Resistance Equivalent Number) = %Cr + 3,3x%Mo + 16x%N. Figures in table valid for base material.

*** Temperature recommendations based on information from the raw material supplier and from tests. Locking function not affected within the specification.

Keuzehulp

Toepassingsparameter
Staal Roestvrij staal RVS 254 SMO® INCONEL®/ HASTELLOY® C-276 INCONEL® 718
Staalsoort
EN 1.7182  EN 1.4404  EN 1.4547  EN 2.4819 of gelijkwaardig EN 2.4668 of gelijkwaardig
Voorbeelden van toepassingen
Algemene staaltoepassingen Algemene RVS-toepassingen. Niet chloorhoudende of zure omgevingen Algemene zoutwatertoepassingen, pompen, chloridetoepassingen, warmtewisselaars, nucleaire-, ontziltings-, voedselverwerkende en medische apparatuur Algemene zure omgevingen, proces- en chemische industrie, verdampers, offshore-boorgereedschappen Toepassingen met hoge temperaturen, gasturbines, turbo's, verbrandingsovens
Beschikbaar voor boutmaten

M3-M130

#5 to 5"

M3-M80

#5 to 3 1/8"

M3-M39

#5 to 1 1/2"

M3-M39 leverbaar op aanvraag

#5 to 1 1/2" leverbaar op aanvraag

M3-M39 leverbaar op aanvraag

#5 to 1 1/2" leverbaar op aanvraag

Borgringtypes

Standaard buitendiameter (NL3 - NL130)

Grotere buitendiameter (NL3,5sp - NL36sp)

Standaard buitendiameter (NL3ss - NL80ss)

Grotere buitendiameter (NL3,5spss - NL30spss)

Standaard buitendiameter (NL3ss-254 - NL39ss-254)

Grotere buitendiameter (NL3,5spss-254 - NL27spss-254)

Standaard buitendiameter (NL3ss-276 - NL39ss-276)

Grotere buitendiameter (NL3,5spss-276 - NL27spss-276)

Standaard buitendiameter (NL3ss-718 - NL39ss-718)

Grotere buitendiameter (NL3,5spss-718 -  NL27spss-718)

Behandeling / oppervlaktecoating
Doorgehard Delta Protekt® basiscoating (KL100) en topcoating (VH302GZ) Oppervlaktegehard Oppervlaktegehard Oppervlaktegehard Oppervlaktegehard
Borgringhardheid*
≥ 465HV1 ≥ 520HV0,05 ≥ 600HV0,05 ≥ 520HV0,05 ≥ 620HV0,05
Corrosiebestendigheid
Minimaal 600 uur in zoutneveltest (volgens IS09227) PREN 27** PREN 45** PREN 68** PREN 29**
Boutkwaliteiten
Tot 12.9 Tot A4-80 Tot A4-80 Tot A4-80 Tot A4-80
Temperatuurbereik***
-50°C - 200°C -160°C - 500°C -160°C - 500°C -160°C - 500°C -160°C - 700°C

 

* Om de unieke mechanische borgwerking van de Nord-Lock borgringen te garanderen moet de hardheid van de contactvlakken lager zijn dan die van de Nord-Lock borgringen. 

** PREN (Pitting Resistance Equivalent Number) = % Cr + 3,3x% Mo + 16x% N. Gegevens in de tabel gelden voor het basismateriaal.

*** Aanbevolen temperaturen gebaseerd op informatie van de grondstofleverancier. Borgende werking niet aangetast binnen de specificatie.

Hardheid Ringen

Om de unieke wigborging van de Nord-Lock borgringen te garanderen mag de hardheid van de contactvlakken niet hoger zijn dan die van de Nord-Lock borgringen.


Borgringtype Bereik Voorzien van zinc
flake-coating flZnnc – 600
Ongecoat
Staal (Doorgehard) NL3 - NL42
NL45 - NL130
≥ 465 HV1
≥ 465 HV1
 
Roestvrij staal (Oppervlaktegehard) NL3ss - NL80ss   ≥ 520 HV0.05
SMO 254® NL3ss-254 - NL80ss-254   ≥ 600 HV0.05

 

Omrekentabel voor Hardheid

Vickers
HV
Brinell
HB
Rockwell
HRC
Rockwell
HRA
8.8
bout
10.9
bout
12.9
bout
300 285 29,8 65,5 |    
310 295 31,0 65,8 |    
320 304 32,2 66,4 | 320 HV  
330 314 33,3 67,0 | |  
335 319 33,9 67,3 335 HV |  
340 325 34,4 67,6   |  
350 333 35,5 68,1   |  
360 342 36,6 68,7   |  
370 352 37,7 69,2   |  
380 361 38,8 69,8   380 HV  
385 366 39,3 70,1     385 HV
390 371 39,8 70,3     |
400 380 40,8 70,8     |
410 390 41,8 71,4     |
420 399 42,7 71,8     |
430 409 43,6 72,3     |
435 414 44,1 72,5     435 HV
440 418 44,5 72,8      
460 437 46,1 73,6      
480 (456) 47,7 74,5      
500 (475) 49,1 75,3      
520 (494) 50,5 76,1      
540 (513) 51,7 76,7      

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