PA46多少钱一公斤？
这个问题一搜，从三十九块一公斤到八十七块一公斤，报价差得比耐磨等级还多。有人说我买的三十九块的DSM TW200F3用得挺好，有人说我买的八十七的TW341才叫热稳定。到底差在哪？
说实话，问PA46多少钱一公斤的人，大概率还没搞懂PA46这东西不是一个料——通用级、玻纤增强级、热稳定级、耐磨级、阻燃级，每个分支价格都不一样。你拿15%玻纤的价和热稳定级比，那不叫比价，叫被忽悠。
一、主流牌号报价（外企+中企）
先把市面上走量的牌号和参考价摆出来。以下为近期市场参考价，实时价格以当日询价为准。
DSM/恩骅力（Envalior，荷兰）
Stanyl TW341，热稳定级，参考价约85-87元/公斤。耐高温耐磨，齿轮、轴承。
Stanyl TW200F6，30%玻纤增强可电镀，参考价约65元/公斤。连接器、齿轮、绝缘。
Stanyl TW200F3，15%玻纤增强热稳定，参考价约39元/公斤。通用增强、结构件。
Stanyl TS250F4D，25%玻纤低摩擦耐磨，参考价约70-100元/公斤。精密齿轮、汽车。
Stanyl TE250F6，30%玻纤耐磨，参考价约70-90元/公斤。齿轮、轴承。
杜邦（DuPont，美国）
Zytel HTN系列PA46，参考价约60-90元/公斤。高温尼龙，汽车、电子。
国产PA46
国产PA46通用级，参考价约48-60元/公斤。性价比高，通用注塑、结构件。
国产PA46玻纤增强级，参考价约40-55元/公斤。汽车、电子部件。
一句话总结：15%玻纤增强39-50块，30%玻纤增强55-70块，热稳定/耐磨级70-90块，高端特殊80-100块。你要的是啥增强和耐磨，决定了你该在哪一档选。
二、同是PA46，价差凭什么这么大
PA46的价格差，主要藏在四个地方。
第一，玻纤含量不同。15%玻纤便宜，30%玻纤适中，40%以上玻纤贵。玻纤加得越多，强度越高，价格也越高。
第二，热稳定性能不同。通用级耐热一般价格便宜，热稳定级可以长期在高温下工作价格贵。热稳定是PA46的核心指标。
第三，耐磨性能不同。普通级耐磨一般价格便宜，耐磨级添加特殊润滑剂价格贵。耐磨是PA46区别于其他尼龙的关键。
第四，品牌和产地。DSM是PA46的发明者和主导者，价格高但性能稳定；国产性价比高但质量参差。同样是30%玻纤，DSM比国产贵30-50%，贵的是品控和研发。
三、采购避坑：别让耐磨骗了你
我见过太多采购，比价比到最后选了最便宜的三十九块的，然后做出来的齿轮磨损快、噪音大、客户退货，一次损失够买半年的好料。
PA46采购这行，水比你想的深。三个坑必须绕开：
第一，看热变形温度和熔指不看牌号。同一个牌号不同批次性能可能波动，拿到料先测HDT和熔指，和COA对得上再用。别听销售说"差不多"，差不多就是差很多。
第二，警惕以次充好。有些贸易商拿PA66当PA46卖，拿低玻纤当高玻纤卖。要COA、要耐磨测试报告、要原厂包装，三证合一才敢用。
第三，别只比单价，算综合成本。A料单价39块，做出来齿轮三个月磨损报废；B料单价70块，齿轮用一年不磨损。算到全生命周期上，B料反而更便宜。
四、标准牌号满足不了？看看改性方案
如果你发现标准牌号怎么选都差点意思——比如要阻燃又要高耐磨、要增强又要低摩擦、要低成本又要热稳定——那不是PA46的问题，是你需要的不是标准PA46，是改性PA46。
这时候可以看看宁波科隆新材目前在做的高性能改性PA46方案，玻纤增强、阻燃、耐磨、热稳定这些方向都有对应牌号在做。有特殊需求的可以私信要一份改性PA46的报价参考，比自己买基料再加助剂调试，省的不只是钱，还有试错的时间。
说白了，标准料是大锅饭，改性料是定制菜。你的制品要求越高，越需要定制。
五、常用牌号，私信给你当日报价
上面的价格都是参考价，PA46行情一天一个样，丁二胺、己二酸、汇率都在动。
如果你需要DSM/恩骅力、杜邦、国产这些品牌的具体牌号当日报价，私信我，发你一份实时价格表。不绕弯子，报实数。
写在最后
买PA46这事儿，三十九的和八十七的，差的不是四十八。
单价是门槛，选对玻纤含量和耐磨才是底线。别让报价单上的数字迷惑了你——你买的不是一公斤塑料，是一公斤能做出耐磨齿轮的方案。把账算到全生命周期上，再加上退货损失，你才知道谁真便宜谁真贵。
你在PA46采购上踩过什么坑？是磨损快还是耐热不够？评论区聊聊，点赞最高的三位，送一份PA46主流牌号选型对照表。
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PA46注塑常见问题及解决
How much is PA46 per kilogram?
Quotes range from CNY 39/kg to CNY 87/kg. PA46 is not one material: general, GF-reinforced, heat-stabilized, wear-resistant and flame-retardant grades each carry a different price. Comparing a 15%-GF quote with a heat-stabilized grade is not price comparison; it is how you get fooled.
1. Mainstream grade quotes (imported + domestic) — recent market references; live prices subject to same-day inquiry.
DSM/Envalior (Netherlands)
Stanyl TW341, heat-stabilized grade, approx. CNY 85-87/kg. High-temperature, wear-resistant; gears, bearings.
Stanyl TW200F6, 30% GF-reinforced, platable, approx. CNY 65/kg. Connectors, gears, insulation.
Stanyl TW200F3, 15% GF-reinforced, heat-stabilized, approx. CNY 39/kg. General reinforcement, structural parts.
Stanyl TS250F4D, 25% GF, low-friction, wear-resistant, approx. CNY 70-100/kg. Precision gears, automotive.
Stanyl TE250F6, 30% GF, wear-resistant, approx. CNY 70-90/kg. Gears, bearings.
DuPont (USA)
Zytel HTN series PA46, approx. CNY 60-90/kg. High-temperature nylon; automotive, electronics.
Domestic PA46
Domestic general-purpose, approx. CNY 48-60/kg. Cost-effective; general injection, structural parts.
Domestic GF-reinforced, approx. CNY 40-55/kg. Automotive, electronic parts.
In short: 15% GF CNY 39-50, 30% GF CNY 55-70, heat-stabilized/wear-resistant CNY 70-90, premium special CNY 80-100.
2. Why prices differ so much
Four factors: (1) Glass-fiber content — more fiber means higher strength and a higher price. (2) Heat stabilization — general grades have average heat resistance; heat-stabilized grades work long-term at high temperature and cost more; heat stability is PA46's core metric. (3) Wear resistance — wear grades add special lubricants and cost more; wear resistance is what sets PA46 apart from other nylons. (4) Brand and origin — DSM invented and leads PA46, with stable performance but high prices; for the same 30% GF, DSM costs 30-50% more than domestic, paying for quality control and R&D.
3. Procurement pitfalls
The cheapest material often gives gears that wear out fast and run noisy, causing returns. Three traps to avoid:
First, test HDT and melt flow index against the COA instead of trusting the grade name. Second, watch for substitution: some traders sell PA66 as PA46 or low-GF as high-GF; demand the COA, a wear test report and original packaging. Third, calculate total cost over the whole lifecycle: A at CNY 39/kg with gears worn out in 3 months vs. B at CNY 70/kg lasting a year — B is cheaper.
4. Standard grades not enough? Consider modified compounds
If you need flame retardancy AND high wear resistance, reinforcement AND low friction — you need modified PA46. Ningbo Kolong New Materials is developing high-performance modified PA46 grades covering GF reinforcement, flame retardancy, wear resistance and heat stabilization. Message us for a modified PA46 quote reference.
In plain terms: standard grades are a big pot of shared rice; modified compounds are a dish cooked to order.
5. Same-day quotes via message
PA46 prices change daily — tetramethylenediamine, adipic acid and exchange rates all move. Message us for same-day quotes on specific grades from DSM/Envalior, DuPont or domestic producers; real numbers.
Final words
The gap between CNY 39 and CNY 87 is not CNY 48. Unit price is the threshold; choosing the right glass-fiber content and wear resistance is the baseline. You are buying a solution for making wear-resistant gears. Do the math over the full lifecycle, add returns, and you will know who is truly cheap.
What pitfalls have you hit buying PA46 — fast wear or insufficient heat resistance? The three most-liked comments will receive a PA46 grade selection guide.
