洛帝牢防松垫圈
洛帝牢防松垫圈
合金钢垫圈 |
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| 应用 | 常规合金钢应用 | |||
| 材料标准 | EN 1.7182 | |||
| 尺寸范围 | M3-M130 #5至5" |
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| 耐腐蚀性 | 按照ISO 9227标准进行至少1,000小时的盐雾测试 | |||
| 硬化/淬火 | 整体淬火 | |||
| 硬度* | ≥ 465HV1 | |||
| 涂层 | Delta Protekt® KL100锌铝粉末涂覆 | |||
| 螺栓等级 | 可达12.9 | |||
| 温度范围*** | -50°C至200°C | |||
| 产品名称 | NL NLsp |
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| 激光标刻类型代码 | flZn | |||
* 垫圈硬度必须大于配合面硬度，以确保其机械功能。
*** 温度建议值基于原材料供应商提供的信息和测试。在指定范围内锁紧功能不会受到影响。
不锈钢垫圈 |
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| 应用 | 常规不锈钢应用 | |||
| 材料标准 | EN 1.4404 | |||
| 尺寸范围 | M3-M80 #5至3 1/8" |
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| 耐腐蚀性 | PREN 27** | |||
| 硬化/淬火 | 表面硬化 | |||
| 硬度* | ≥ 520HV0.05 | |||
| 涂层 | - | |||
| 螺栓等级 | 最大A4-80 | |||
| 温度范围*** | -160°C至500°C | |||
| 产品名称 | NLss NLspss |
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| 激光标刻类型代码 | SS | |||
* 垫圈硬度必须大于配合面硬度，以确保其机械功能。
** 耐腐蚀性被称为PREN。PREN或耐点蚀当量是根据原材料的化学成分计算的理论值。公式是 PREN=%Cr+3.3x%Mo+16x%N。
*** 温度建议值基于原材料供应商提供的信息和测试。在指定范围内锁紧功能不会受到影响。
Nord-Lock 254 SMO® 垫圈 |
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| 应用 | 腐蚀性环境 — 富氯环境、泵、热交换器、核、食品、医疗、加工 酸性和污染环境 — 近海和石油天然气行业 CX环境 — 近海、工业应用 |
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| 材料标准 | EN 1.4547 | |||
| 尺寸范围 | M3-M39 #5 to 1 1/2" |
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| 耐腐蚀性 | PREN 45** | |||
| 硬化 | 表面石化 | |||
| 垫圈硬度* | ≥ 600HV0,05 | |||
| 温度范围*** | -160°C to 500°C | |||
| 产品名称 | NLss-254 NLspss-254 |
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| 激光标刻类型代码 | 254 | |||
* 垫圈硬度必须大于配合面硬度，以确保其独特的机械功能。
** 耐腐蚀性被称为PREN。PREN或耐点蚀当量是根据原材料的化学成分计算的理论值。公式是PREN = %Cr + 3,3x%Mo + 16x%N. 表中的数字适用于基础材料。
*** 温度建议值基于原材料供应商提供的信息和测试。在指定范围内锁紧功能不会受到影响。
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 | ||||
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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.
垫圈硬度
为确保洛帝牢防松垫圈所具有的独特楔形制锁功能，接触表面的硬度不应超过洛帝牢防松垫圈的硬度。
| 垫圈类型 | 垫圈类型 | 镀锌涂层 flZnnc – 600 |
无涂层 |
| 碳钢垫圈 (完全硬化处理) | NL3 - NL42 NL45 - NL130 |
≥ 465 HV1 ≥ 465 HV1 |
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| 不锈钢垫圈 (表面硬化) | NL3 ss - NL80 ss | ≥ 520 HV0.05 | |
| SMO 254® 垫圈 | NL3ss-254 - NL80ss-254 | ≥ 600 HV0.05 |
硬度转换表
| 维氏 HV |
洛氏 HRB |
洛氏 HRB |
洛氏 HRA |
8.8 螺栓 |
10.9 螺栓 |
12.9 螺栓 |
| 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 |
