| Vickers HV |
Brinell HB |
Rockwell HRC | Rockwell HRA | 8.8 bolt |
10.9 bolt | 12.9 bolt |
| 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 |
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. Non chloride / acid environments | General salt water applications, pumps, chloride applications, heat exchangers, nuclear, desalination, food processing & medical equipment | General acidic environments, process and chemical industry, evaporators, offshore downhole tooling | Applications with 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 | ||||
|
Regular outer diameter M3-M130, #5 to 5" |
Regular outer diameter M3-M80, #5 to 3 1/8" |
Regular outer diameter M3-M39, #5 to 1 1/2" |
Regular outer diameter M4-M20, #8 to 5/8" |
Regular outer diameter M4-M20, #8 to 3/4" |
| 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 | |||
| 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 - Nord-Lock, traceable batch number and 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.
ノルトロック 鉄（鋼）製ワッシャー |
||||
| 用途 | 鉄製材料の締結部全般 | |||
| 材料規格 | EN 1.7182 | |||
| サイズ | M3-M130 #5 to 5" |
|||
| 耐食性 | 塩水噴霧試験にて最低1,000時間以上 （ISO 9227準拠) | |||
| 焼入れ | 全体焼き入れ | |||
| ワッシャー硬度＊ | ≥ 465HV1 | |||
| コーティング |
ベース：Delta Protekt® （デルタプロテクト）KL100, トップ： VH 302 GZ |
|||
| ボルトグレード | 12.9まで | |||
| 対応温度帯*** | -50°C ～200°C | |||
| 製品表示 | NL NLsp |
|||
| レーザーマーク | バッチナンバー＆ コード flZn | |||
* ノルトロックワッシャーの緩み止め機能を得るため、相手母材はノルトロックワッシャーよりも低い硬度である必要があります。
*** 対応温度帯は各材料の提供元にて行われた試験に基づいた数値です。表にある温度帯内での使用である限り緩み止め機能には影響ありません。
NORD-LOCK STAINLESS STEEL WASHERS |
||||
| Applications | General stainless steel applications. Non chloride / acid environments | |||
| Material standard | EN 1.4404 | |||
| Size range | Regular outer diameter M3-M80, #5 to 3 1/8" Enlarged outer diameter M3.5-M30, #6 to 1 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 - Nord-Lock, traceable batch number and 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 | General salt water applications, pumps, chloride applications, heat exchangers, nuclear, desalination, food processing & medical equipment | |||
| Material standard | EN 1.4547 | |||
| Size range | Regular outer diameter M3-M39, #5 to 1 1/2" Enlarged outer diameter M3.5-M27, #6-1" |
|||
| Corrosion resistance | PREN 45** | |||
| Hardening | Surface hardened | |||
| Washer hardness* | ≥ 600HV0,05 | |||
| Temperature range*** | -160°C to 500°C | |||
| Product designation | NLss-254 NLspss-254 |
|||
| Laser Marking - Nord-Lock, traceable batch number and 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 | General acidic environments, process and chemical industry, evaporators, offshore downhole tooling | |||
| Material standard | EN 2.4819 or equivalent | |||
| Size range | Regular outer diameter M4-M20, #8 to 5/8" Enlarged outer diameter M8-M12, 5/16" |
|||
| 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 - Nord-Lock, traceable batch number and 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 | Applications with high temperatures, gas turbines, turbo charges, incinerators | |||
| Material standard | EN 2.4668 or equivalent | |||
| Size range | Regular outer diameter M4-M20, #8 to 3/4" Enlarged outer diameter M8-M12, 5/16" |
|||
| 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 Marking - Nord-Lock, traceable batch number and 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.