
产品
铁基不锈钢钎料
我们的铁基不锈钢钎料在传统铜钎焊已被不锈钢钎焊替代的应用中特别受欢迎, 其中包括油冷却器和钎焊板式换热器(BPHE)等应用。这些应用中,最终需要将铜含量保持在尽可能低的水平。在高温和腐蚀性环境中,铜可能会浸出到油冷却器的机油或钎焊板式热交换器的液体中。对于油冷却器来说,这通常是人们不希望看到的情况,因为它会影响冷却系统的性能和使用寿命。
对于饮用水应用中使用的钎焊组件,相关机构制定了严格的法规来限制水中所允许的铜离子最大含量,这也促使用户对其他钎料的使用需求进一步增加。铁基不锈钢钎料具有独特的技术优势,浸出到饮用水中的金属离子量很少甚至微不足道,与传统的镍基钎料和铜钎焊相比更胜一筹。
BrazeLet® F300和BrazeLet F86是铁基不锈钢钎料,在真空或保护性气氛中对不锈钢基材具有良好的润湿性。高含量的合金铬(Cr)具有极好的耐高温气体和酸腐蚀性能,因此这些合金适用于热交换器、商用车不锈钢油冷却器和废气再循环冷却器等应用的钎焊。两种合金的主要区别在于钎焊接头强度和推荐钎焊温度,其中BrazeLet F86的强度高于BrazeLet F300,但需要更高的钎焊温度。
除了标准的铁基不锈钢钎料外,Höganäs还拥有足够的能力和经验,能够与我们的客户合作开发量身定制的合金(如果应用需要)。如果您认为自己需要一种与现有产品系列具有不同特性的钎料,请随时与我们联系。
BrazeLet®铁基钎料
BrazeLet F300-20
BrazeLet® F300-20是一种适用于极端环境中应用的独特的不锈钢铁铬基钎料, 其独特的化学成分可提供与高性能镍基钎料相似的耐腐蚀性和连接强度。 但是,由于这种钎料使用的金属成本较低,因此,这是一种更经济有效的选择。
BrazeLet F300-20具有出色的润湿性,钎焊温度低,可形成具有高强度、高耐腐蚀性和抗氧化性的均匀接头,因此适用于工业和汽车行业中的换热器应用。
日益增长的无铜钎焊需求的首选,例如用于饮用水应用和油冷却器。
优势
- 具有成本效益
- 可用于较宽焊缝
- 耐腐蚀性能
- 高焊接强度
成分
ISO 3677、B-Fe39CrNiCuPSi-1000/1070
杂质依据ISO 17672
杂质依据ANSI/AWS A5.8
熔化温度
1000-1070°C
最低钎焊温度
1100°C
BrazeLet F300DW-9007
Höganäs’ unique and patented iron-chromium based stainless brazing alloy BrazeLet F300-20 offers excellent wetting properties and great corrosion resistance particularly developed for brazing of stainless steel materials in vacuum or protective atmospheres (dry hydrogen or argon). With excellent wetting properties, low brazing temperature and high corrosion and oxidation resistance it is a good choice for automotive and industrial heat exchangers. It is well suited for drinking water applications with strict requirements on metal ion leaching. Compared to nickel-based brazing alloys it offers a more attractive and stable cost. Compared to most of the standard nickel-based brazing alloys, BrazeLet F300-20 is able to fill larger gaps without brittle phase lines or cracks, which leads to a more reliable and safe brazing as well as more flexibility in part tolerances.
The water-based brazing paste BrazeLet F300DW-9007 can be used for dispensing applications, typically found on heat exchanger inlet and outlet tubes, housing to core joints and hole plates to tube joints. It dries quickly and sticks to all bevel and vertical positions without the need of pre-drying. It can be easily removed with water. The paste has a very low polymer content and the binder is specially designed to decompose cleanly at low temperatures, as to minimise need for furnace maintenance, while preventing pre-oxidation of brazing filler metal powder in marginal furnace atmospheres. It shows extremely good residue-free brazing results in both vacuum and continuous belt furnace brazing.
BrazeLet F300DW-9007 properties allow reliable application in a wide speed range as a result of the dispensing equipment / automatisation as well as the needle diameter. The paste can be delivered in cartridges for use in automated applications or different sized cans. It can be frozen and brought back to room temperature for use without any damage to its properties.
Nominal composition: Fe – 20Ni – 20Cr – 7P – 6.5Cu – 4Si Solvent type: Water |
||
BrazeLet F300DW-9201
Höganäs’ unique and patented iron-chromium based stainless brazing alloy BrazeLet F300-20 offers excellent wetting properties and great corrosion resistance particularly developed for brazing of stainless steel materials in vacuum or protective atmospheres (dry hydrogen or argon). With excellent wetting properties, low brazing temperature and high corrosion and oxidation resistance it is a good choice for automotive and industrial heat exchangers. It is well suited for drinking water applications with strict requirements on metal ion leaching. Compared to nickel-based brazing alloys it offers a more attractive and stable cost. Compared to most of the standard nickel-based brazing alloys, BrazeLet F300-20 is able to fill larger gaps without brittle phase lines or cracks, which leads to a more reliable and safe brazing as well as more flexibility in part tolerances.
The brazing paste BrazeLet F300DW-9201 can be used for dispensing applications, typically found on heat exchanger inlet and outlet tubes, housing to core joints and hole plate to tube joints. It can be dispensed by using standard air pressure dispensing units. For better precision, screw dispense units are recommended. The paste sticks on all bevel positions without the need of pre-drying but is easily removed using water. The paste formulation offers the highest metal content of our standard dispensing pastes.
BrazeLet F300DW-9201 properties allow reliable application in a wide speed range as a result of the dispensing equipment / automatisation as well as the needle diameter. The paste can be delivered in cartridges for use in automated applications or different sized cans for refilling of smaller cartridges for manual applications. For best performance, it is recommended to first stir the paste.
Nominal composition: Fe – 20Ni – 20Cr – 7P – 6.5Cu – 4Si Solvent type: Water-born |
||
BrazeLet F300P-9012
Höganäs’ unique and patented iron-chromium based stainless brazing alloy BrazeLet F300-20 offers excellent wetting properties and great corrosion resistance particularly developed for brazing of stainless steel materials in vacuum or protective atmospheres (dry hydrogen or argon). With excellent wetting properties, low brazing temperature and high corrosion and oxidation resistance it is a good choice for automotive and industrial heat exchangers. It is well suited for drinking water applications with strict requirements on metal ion leaching. Compared to nickel-based brazing alloys it offers a more attractive and stable cost. Compared to most of the standard nickel-based brazing alloys, BrazeLet F300-20 is able to fill larger gaps without brittle phase lines or cracks, which leads to a more reliable and safe brazing as well as more flexibility in part tolerances.
The brazing paste BrazeLet F300P-9012 is typically in use for printing thick paste layers of about 0.2 to 0.6 mm on flat parts or on top of structured parts by use of screens or stencils. A typical application is printing of paste on hole plates of tube bundled heat exchangers. The use of rubber squeegees is recommended. Reliable printing requires precise positioning fixture tool by use of vacuum table or clamping device. Typical printing speed is 100 mm/s. Thin printing lines should at least have a width twice the printing thickness and the small dots diameter should be three times the printing thickness or greater. Printing accuracy is very precise as the paste maintains its shape during drying.
The solvent based BrazeLet F300P-9012 increases productivity wherever drying of the paste is an issue. It has no settlement, and no stirring is needed in the equipment. However, when opening a can from stock it is always recommended to stir the paste. The printed parts can be dried with standard drying process (hot air) at 120 – 170 °C. Here, the drying time needs to be established as it varies depending on thermal mass, parts design and the used furnace. After drying, the paste has excellent adhesion to the metal sheet.
Nominal composition: Fe – 20Ni – 20Cr – 7P – 6.5Cu – 4Si Solvent type: Oil |
||
BrazeLet F300R-9003
Höganäs’ unique and patented iron-chromium based stainless brazing alloy BrazeLet F300-20 offers excellent wetting properties and great corrosion resistance particularly developed for brazing of stainless steel materials in vacuum or protective atmospheres (dry hydrogen or argon). With excellent wetting properties, low brazing temperature and high corrosion and oxidation resistance it is a good choice for automotive and industrial heat exchangers. It is well suited for drinking water applications with strict requirements on metal ion leaching. Compared to nickel-based brazing alloys it offers a more attractive and stable cost. Compared to most of the standard nickel-based brazing alloys, BrazeLet F300-20 is able to fill larger gaps without brittle phase lines or cracks, which leads to a more reliable and safe brazing as well as more flexibility in part tolerances.
The brazing paste BrazeLet F300R-9003 can be used for roller coating fins or structured plates, typically found in flat heat exchanger designs. Depending on type of roller used the paste can be applied with thin layers either on top or on the side of the fin tips. Gap size between the paste roll and the scraper of 0.08 – 0.12 mm is recommended. The amount of paste is controlled by weight and is a function of the fins or structured plate design. BrazeLet F300R-9003 properties allow reliable application in a wide range of coating speeds, tested with good results from 3 m/min up to 20 m/min. The oil-based paste ensures reliable coating over time without drying on the roll. BrazeLet F300R-9003 has higher metal content and lower binder content compared to standard roller coating pastes, which decreases packaging and transportation needs for the same amount of brazing filler metal.
The coated fins can be dried with standard drying process (hot air) at 120 – 170 °C. The drying time depends on thermal mass, parts design and the used furnace and thus needs to be established. When dried, the paste has excellent adhesion to the metal sheet.
Nominal composition: Fe – 20Ni – 20Cr – 7P – 6.5Cu – 4Si Solvent type: Oil |
||
BrazeLet F86
Höganäs’ unique iron-chromium based stainless brazing alloy BrazeLet F86 provides high strength joints when brazing stainless steel materials in vacuum or protective atmospheres (dry hydrogen or argon). The brazing alloy is particularly well suited for brazing heat exchangers with strict requirements on corrosion resistance and metal ion leaching, for example in drinking water or purified water applications, and it is completely copper free. Compared to nickel-based brazing alloys it offers a more attractive and stable cost. Compared to most of the standard nickel-based brazing alloys, BrazeLet F86 is able to fill larger gaps without brittle phase lines or cracks, which leads to a more reliable and safe brazing as well as more flexibility in part tolerances.
Nominal composition: Fe – 29Cr – 18Ni – 6.5Si – 6P – 0.5Nb |
||
联系我们

销售与技术支持
隐私政策
我同意Höganäs以联系我为目的处理我的个人数据。 我的联系信息也可能用于营销,如业务通讯和其他相关信息。 数据不会与第三方进行共享。 本人已同意,并且确认已年满16周岁。
更多关于我们如何处理个人数据的信息,请参阅我们的隐私政策。