POK多少钱一公斤？
这个问题一搜，从二十五块二一公斤到三十二块五一公斤，报价差得比分子量还多。有人说我买的二十五的晓星M330A用得挺好，有人说我买的三十二的M630A才叫高冲击。到底差在哪？
说实话，问POK多少钱一公斤的人，大概率还没搞懂POK这东西不是一个料——低粘度、中粘度、高粘度、食品级、玻纤增强，每个分支价格都不一样。你拿低粘度的价和高粘度比，那不叫比价，叫被忽悠。
POK就是聚酮（Polyketone），韩国晓星和荷兰帝斯曼是全球主要生产商，自润滑、耐化学、高阻隔，常用于齿轮、轴承、净水器、食品包装。
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。
晓星（Hyosung，韩国）
M330A，低粘度通用级，参考价约25.2-26元/公斤。通用注塑、齿轮、轴承。
M330AW002，低粘度高冲击耐酸碱，参考价约27.6元/公斤。半结晶、耐化学。
M33AG7V，低粘度玻纤增强，参考价约28-32元/公斤。结构件、汽车部件。
M630A，高冲击级，参考价约32.5元/公斤。高冲击、汽车、电子电器。
M630F，食品级耐水解无甲醛析出，参考价约32元/公斤。食品接触、净水器。
M630AG6BA，玻纤增强高刚性耐磨，参考价约35-40元/公斤。高端结构件。
M640U1B，高冲击高熔点高耐热，参考价约35-40元/公斤。电子电器、汽车。
M730A/M930A，中高粘度级，参考价约30-38元/公斤。挤出、薄膜、高阻隔。
国产POK
国产POK通用级，参考价约28元/公斤。性价比高，通用注塑、汽车扎带。
一句话总结：低粘度通用25-28块，中高粘度/食品级30-33块，玻纤增强/高耐热35-40块。你要的是啥分子量和用途，决定了你该在哪一档选。
二、同是POK，价差凭什么这么大
POK的价格差，主要藏在四个地方。
第一，分子量不同。低分子量适合注塑价格便宜，高分子量适合挤出和薄膜价格贵。分子量决定加工方式和性能。
第二，性能不同。通用级便宜，食品级/耐水解适中，玻纤增强/高耐热贵。特殊性能需要特殊配方。
第三，生产商不同。晓星是POK的主要生产商，价格稳定；国产POK起步晚，价格略低但牌号少。
第四，品牌和产地。进口溢价高但批次稳定，国产性价比高但质量参差。同样是通用级，晓星比国产略贵，贵的是品控和研发。
三、采购避坑：别让分子量骗了你
我见过太多采购，比价比到最后选了最便宜的二十五的，然后做出来的齿轮磨损快、净水器有异味、客户退货，一次损失够买半年的好料。
POK采购这行，水比你想的深。三个坑必须绕开：
第一，看熔指和分子量不看牌号。同一个牌号不同批次性能可能波动，拿到料先测熔指和分子量，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POK卖，拿低粘度当高粘度卖。要COA、要分子量检测、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25块，做出来齿轮三个月磨损报废；B料单价32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——比如要阻燃又要自润滑、要增强又要耐化学、要低成本又要食品级——那不是POK的问题，是你需要的不是标准POK，是改性POK。
这时候可以看看宁波科隆新材目前在做的高性能改性POK方案，玻纤增强、阻燃、耐磨、导电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POK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，POK行情一天一个样，一氧化碳、乙烯、丙烯、汇率都在动。
如果你需要晓星、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POK这事儿，二十五的和三十二的，差的不是七块。
单价是门槛，选对分子量和性能才是底线。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POK采购上踩过什么坑？是磨损快还是有异味？评论区聊聊，点赞最高的三位，送一份POK主流牌号选型对照表。
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POK和PA66有什么区别
POK改性料厂家怎么选
POK注塑常见问题及解决
How much is POK per kilogram?
POK is not one material: food-grade, and each carries a different price.
1. Mainstream grade quotes (imported + domestic) — recent market references; live prices subject to same-day inquiry.
POK
M330A, approx. CNY 25.2-26/kg. general injection; gears; bearings.
M330AW002, approx. CNY 27.6/kg. chemical-resistant.
M33AG7V, approx. CNY 28-32/kg. structural parts; automotive parts.
M630A, approx. CNY 32.5/kg. automotive; electronics.
M630F, approx. CNY 32/kg. food contact.
M630AG6BA, approx. CNY 35-40/kg.
M640U1B, approx. CNY 35-40/kg. electronics; automotive.
M730A/M930A, approx. CNY 30-38/kg. extrusion; film.
Domestic POK
approx. CNY 28/kg. general injection.
2. Why prices differ so much
Four factors: (1) molecular weight — lower levels are cheaper; higher levels give better performance but cost more. (2) grade level — premium grades need special formulations and cost more. (3) application — special applications need special formulations or certification and cost more. (4) Brand and origin — imports carry a premium but offer batch stability; for the same grade, imports cost 30-50% more than domestic, paying for quality control and R&D.
3. Procurement pitfalls
The cheapest material often fails on performance and triggers customer returns. Three traps to avoid:
First, test key properties against the COA instead of trusting the grade name — performance of the same grade can fluctuate between batches. Second, watch out for substitution fraud: some traders pass off cheaper or recycled material as the real thing; demand the COA, a test report and original packaging before use. Third, don't compare unit price alone — calculate total cost per finished part, including rejected-goods loss; a higher-priced grade with a 1% defect rate is often cheaper than a low-priced one with 5% rejects.
4. Standard grades not enough? Consider modified compounds
If standard grades always fall short — for example you need flame retardancy AND high transparency, reinforcement AND chemical resistance, or low cost AND food grade — you don't need standard POK, you need a modified compound. Ningbo Kolong New Materials is developing high-performance modified POK solutions covering glass-fiber reinforcement, flame retardancy, weatherability and conductivity. Message us for a modified POK quote reference — it saves not only money but also trial-and-error time.
In plain terms: standard grades are a big pot of shared rice; modified compounds are a dish cooked to order. The higher your requirements, the more you need customization.
5. Popular grades — same-day quotes via message
All prices above are references; POK prices change daily as feedstocks and exchange rates move. If you need same-day quotes for specific grades, message us and we will send a live price sheet. No beating around the bush — real numbers.
Final words
Unit price is the threshold; choosing the right grade and performance is the baseline. Do the math per finished part, add rejected-goods loss, and you will know who is truly cheap and who is truly expensive.
What pitfalls have you hit when buying this material? The three most-liked comments will receive a grade selection guide.
