Nord-Lock Steel Washers |
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| Applications | General steel applications | |||
| Material standard | EN 1.7182 | |||
| Size range | M3-M130 #5 to 5" |
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| 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 |
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| 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 |
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| Applications | General stainless steel applications | |||
| Material standard | EN 1.4404 | |||
| Size range | M3-M80 #5 to 3 1/8" |
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| 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 |
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| 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 |
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| 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" |
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| Corrosion resistance | PREN 45** | |||
| Hardening | Surface hardened | |||
| Washer hardness* | ≥ 600HV0,05 | |||
| Temperature range*** | -160°C to 500°C | |||
| Product designation | NLss-254 NLspss-254 |
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| 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 |
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| 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" |
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| Corrosion resistance | PREN 68** | |||
| Hardening | Surface hardened | |||
| Washer hardness* | ≥ 520HV0,05 | |||
| Temperature range*** | -160°C to 500°C | |||
| Product designation | NLss-276 NLspss-276 |
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| 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 |
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| Applications | High temperatures – gas turbines, turbo charges, incinerators | |||
| Material standard | EN 2.4668 or equivalent | |||
| Size range | M4-M20 #5 to 1 1/2" |
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| Corrosion resistance | PREN 29** | |||
| Hardening | Surface hardened | |||
| Washer hardness* | ≥ 620HV0,05 | |||
| Temperature range*** | -160°C to 700°C | |||
| Product designation | NLss-718 NLspss-718 |
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| Laser marking 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 |
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| 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.
Guía de uniones
| Parámetro de aplicación | ||||
| Acero | Acero inoxidable (ss) | 254 SMO® | ALLOY C-276 |
ALLOY 718 |
| Tipo de acero | ||||
| EN 1.7182 | EN 1.4404 | EN 1.4547 | EN 2.4819 o equivalente | EN 2.4668 o equivalente |
| Ejemplos de aplicaciones | ||||
| Aplicaciones generales de acero | Aplicaciones generales de acero inoxidable. Entornos sin cloro/ácidos | Aplicaciones en agua salada, bombas, cloruros, intercambiadores de calor, centrales nucleares, plantas desalinizadoras, maquinaria para procesar alimentos y equipos médicos | Entornos ácidos, industria química y de procesos, evaporadores, maquinaria en alta mar | Aplicaciones con altas temperaturas, turbinas de gas, turbocompresores, incineradores |
| Disponibles para diferentes tamaños de tornillo | ||||
|
M3-M130 #5 a 5" |
M3-M80 #5 a 3 1/8" |
M3-M39 #5 a 1 1/2" |
M3-M39 disponibles bajo pedido #5 a 1 1/2" disponibles bajo pedido |
M3-M39 disponibles bajo pedido #5 a 1 1/2" disponibles bajo pedido |
| Tipos de arandela | ||||
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Diámetro exterior normal (NL3 - NL130) Diámetro exterior agrandado (NL3,5sp - NL36sp) |
Diámetro exterior normal (NL3ss - NL80ss) Diámetro exterior agrandado (NL3,5spss - NL30spss) |
Diámetro exterior normal (NL3ss-254 - NL39ss-254) Diámetro exterior agrandado (NL3,5spss-254 - NL27spss-254) |
Diámetro exterior normal (NL3ss-276 - NL39ss-276) Diámetro exterior agrandado (NL3,5spss-276 - NL27spss-276) |
Diámetro exterior normal (NL3ss-718 - NL39ss-718) Diámetro exterior agrandado (NL3,5spss-718 - NL27spss-718) |
| Tratamiento/recubrimiento superficial | ||||
| Endurecimiento totalDelta Protekt® capa base (KL100) y capa superior (VH302GZ) | Superficie endurecida | Superficie endurecida | Superficie endurecida | Superficie endurecida |
| Dureza de la arandela* | ||||
| ≥ 465HV1 | ≥ 520HV0,05 | ≥ 600HV0,05 | ≥ 520HV0,05 | ≥ 620HV0,05 |
| Resistencia a la corrosión | ||||
| Mínimo 1,000 horas en ensayo de niebla salina (según ISO 9227) | PREN 27** | PREN 45** | PREN 68** | PREN 29** |
| Grados de tornillo | ||||
| Hasta 12.9 | Hasta A4-80 | |||
| Rango de temperatura*** | ||||
| -50°C a 200°C | -160°C a 500°C | -160°C a 500°C | -160°C a 500°C | -160°C a 700°C |
* Con el fin de asegurar la excelente función de bloqueo mecánico de las arandelas Nord-Lock, la dureza de la superficie de contacto debe ser inferior a la dureza de las arandelas Nord-Lock (véase la tabla arriba).
** PREN (Pitting Resistance Equivalent Number) = %Cr + 3,3x%Mo + 16x%N. Datos en tabla válidos para material base.
*** Las recomendaciones de temperatura se basan en la información suministrada por el proveedor de la materia prima. Función de bloqueo no afectada en la especificación.
Dureza de la arandela
Con el fin de asegurar la función inigualable de bloqueo por cuña de las arandelas Nord-Lock, la dureza de la superficie de contacto no debe ser superior a la dureza de las arandelas Nord-Lock.
| Tipo de arandela | Rango | Recubrimiento laminado de Zinc flZnnc – 600 | Sin revestimiento |
| Arandelas de acero (Endurecimiento total) | NL3 - NL42 NL45 - NL130 |
≥ 465 HV1 ≥ 465 HV1 |
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| Arandelas de acero inoxidable (recubrimiento superficial) | NL3ss - NL80ss | ≥ 520 HV0.05 | |
| Arandelas SMO 254® | NL3ss-254 - NL80ss-254 | ≥ 600 HV0.05 |
Tabla de conversión de dureza
| Vickers HV | Brinell HB | Rockwell HRC | Rockwell HRA | Tornillo 8.8 | Tornillo 10.9 | Tornillo 12.9 |
| 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 |
Comprar arandelas Nord-Lock por internet
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