PBT/SAN多少钱一公斤？
这个问题一搜，从十五块一公斤到三十五块一公斤，报价差得比PBT比例还多。有人说我买的十五的国产通用用得挺好，有人说我买的三十五的进口高耐热才叫高端。到底差在哪？
说实话，问PBT/SAN多少钱一公斤的人，大概率还没搞懂PBT/SAN这东西不是一个料——通用级、高耐热级、高流动级、玻纤增强级、阻燃级，每个分支价格都不一样。你拿通用级的价和高耐热比，那不叫比价，叫被忽悠。
PBT/SAN就是聚对苯二甲酸丁二醇酯/苯乙烯丙烯腈合金，结合了PBT的耐热和SAN的高流动，常用于电子电器、家电外壳、汽车配件、工业机械、连接器。
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。
进口PBT/SAN（外企大厂）
通用级，参考价约20-28元/公斤。电子电器、家电外壳、汽车配件。
高耐热级，参考价约23-32元/公斤。汽车配件、工业机械、高温应用。
高流动级，参考价约25-35元/公斤。薄壁制品、复杂结构件、连接器。
国产PBT/SAN（中企大厂）
通用级，参考价约15-22元/公斤。性价比高，电子电器、家电外壳、汽车配件。
高耐热级，参考价约17-26元/公斤。汽车配件、工业机械、高温应用。
玻纤增强级，参考价约19-29元/公斤。结构件、汽车、工业机械。
一句话总结：国产通用15-22块，国产高耐热/玻纤增强17-29块，进口通用20-28块，进口高耐热/高流动23-35块。你要的是啥PBT比例和性能，决定了你该在哪一档选。
二、同是PBT/SAN，价差凭什么这么大
PBT/SAN的价格差，主要藏在四个地方。
第一，PBT比例不同。PBT比例30%左右便宜，比例70%以上高耐热但贵。PBT比例越高，耐热性和强度越好，但流动性略降。
第二，耐热等级不同。通用级便宜，高耐热级贵。高耐热需要特殊配方，价格更高。
第三，流动等级不同。通用级便宜，高流动级贵。高流动需要特殊SAN牌号，价格更高。
第四，品牌和产地。进口溢价高但批次稳定，国产性价比高但牌号少。同样是高耐热级，进口比国产贵30-50%，贵的是品控和研发。
三、采购避坑：别让PBT比例骗了你
我见过太多采购，比价比到最后选了最便宜的十五的，然后做出来的制品耐热差、变形、客户退货，一次损失够买半年的好料。
PBT/SAN采购这行，水比你想的深。三个坑必须绕开：
第一，看热变形温度和熔融指数不看牌号。同一个牌号不同批次性能可能波动，拿到料先测热变形温度和熔融指数，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PBT当PBT/SAN卖，拿低PBT比例当高比例卖。要COA、要PBT比例检测、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15块，做出来制品次品率5%；B料单价22块，次品率1%。算到每件制品上，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——比如要高耐热又要高流动、要玻纤增强又要低翘曲、要低成本又要阻燃级——那不是PBT/SAN的问题，是你需要的不是标准PBT/SAN，是改性PBT/SAN。
这时候可以看看宁波科隆新材目前在做的高性能改性PBT/SAN方案，玻纤增强、阻燃、耐候、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PBT/SAN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，PBT/SAN行情一天一个样，对苯二甲酸、丁二醇、苯乙烯、丙烯腈、玻纤、阻燃剂、汇率都在动。
如果你需要进口、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PBT/SAN这事儿，十五的和三十五的，差的不是二十。
单价是门槛，选对PBT比例和性能才是底线。别让报价单上的数字迷惑了你——你买的不是一公斤塑料，是一公斤能做出高耐热电子电器的方案。把账算到每件制品上，再加上次品退货损失，你才知道谁真便宜谁真贵。
你在PBT/SAN采购上踩过什么坑？是耐热差还是变形？评论区聊聊，点赞最高的三位，送一份PBT/SAN主流牌号选型对照表。
PBT/SAN和PBT有什么区别
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PBT/SAN和PBT/ABS有什么区别
PBT/SAN改性料厂家怎么选
PBT/SAN注塑常见问题及解决
How much is PBT/SAN per kilogram?
PBT/SAN is not one material: high-heat, high-flow, GF-reinforced, flame-retardant, and each carries a different price.
1. Mainstream grade quotes (imported + domestic) — recent market references; live prices subject to same-day inquiry.
Imported PBT/SAN
general-purpose, approx. CNY 20-28/kg. electronics; appliance housings; automotive parts.
high-heat, approx. CNY 23-32/kg. automotive parts; industrial machinery.
high-flow, approx. CNY 25-35/kg. thin-wall parts; complex structural parts; connectors.
Domestic PBT/SAN
general-purpose, approx. CNY 15-22/kg. electronics; appliance housings; automotive parts.
high-heat, approx. CNY 17-26/kg. automotive parts; industrial machinery.
GF-reinforced, approx. CNY 19-29/kg. structural parts; automotive; industrial machinery.
2. Why prices differ so much
Four factors: (1) composition — lower levels are cheaper; higher levels give better performance but cost more. (2) heat grade — 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 PBT/SAN, you need a modified compound. Ningbo Kolong New Materials is developing high-performance modified PBT/SAN solutions covering glass-fiber reinforcement, flame retardancy, weatherability and conductivity. Message us for a modified PBT/SAN 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; PBT/SAN 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.
