PA12T多少钱一公斤？
这个问题一搜，从四十块一公斤到一百块一公斤，报价差得比十二碳含量还多。有人说我买的四十的国产通用用得挺好，有人说我买的一百的EMS高端才叫低吸水高端。到底差在哪？
说实话，问PA12T多少钱一公斤的人，大概率还没搞懂PA12T这东西不是一个料——通用级、玻纤增强级、阻燃级、低吸水级、耐高温级，每个分支价格都不一样。你拿通用级的价和低吸水级比，那不叫比价，叫被忽悠。
PA12T就是聚对苯二甲酰十二碳二胺，长碳链半芳香族尼龙，低吸水、耐高温、尺寸稳定、耐化学，常用于汽车发动机周边、电子电器、SMT连接器、燃油系统。
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。
EMS（瑞士）
Grivory PA12T系列，通用级，参考价约60-100元/公斤。汽车、电子、精密零件、燃油系统。
Grivory PA12T玻纤增强级，参考价约70-110元/公斤。高端结构件、汽车、连接器。
杜邦（DuPont，美国）
Zytel HTN系列，耐高温PA12T，参考价约60-100元/公斤。汽车发动机周边、电子电器、SMT连接器。
金发科技（Kingfa，中国）
Vicnyl PA12T系列，通用级，参考价约50-80元/公斤。通用注塑、汽车、电子。
Vicnyl PA12T玻纤增强级，参考价约55-85元/公斤。结构件、汽车、连接器。
国产PA12T（其他中企）
国产通用级，参考价约40-60元/公斤。性价比高，通用注塑、汽车、电子。
国产玻纤增强级，参考价约45-70元/公斤。结构件、汽车、连接器。
一句话总结：国产通用40-60块，国产玻纤增强45-70块，进口通用50-100块，进口玻纤增强/低吸水60-110块。你要的是啥十二碳含量和性能，决定了你该在哪一档选。
二、同是PA12T，价差凭什么这么大
PA12T的价格差，主要藏在四个地方。
第一，十二碳二胺来源不同。石油基十二碳二胺便宜，生物基十二碳二胺贵。生物基PA12T更环保，但价格更高。
第二，玻纤增强不同。无筋通用便宜，30%玻纤增强贵。玻纤增强比通用级贵20-30%。
第三，低吸水性能不同。通用级吸水率1.5%左右价格便宜，低吸水级吸水率0.8%以下价格贵。低吸水决定尺寸稳定性和耐水解。
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。同样是玻纤增强，EMS比国产贵30-50%，贵的是品控和研发。
三、采购避坑：别让十二碳骗了你
我见过太多采购，比价比到最后选了最便宜的四十的，然后做出来的制品吸水高、尺寸不稳定、客户退货，一次损失够买半年的好料。
PA12T采购这行，水比你想的深。三个坑必须绕开：
第一，看吸水率和热变形温度不看牌号。同一个牌号不同批次性能可能波动，拿到料先测吸水率和热变形温度，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PA10T当PA12T卖，拿高吸水当低吸水卖。要COA、要十二碳含量检测、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40块，做出来制品次品率5%；B料单价60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——比如要阻燃又要低吸水、要增强又要耐水解、要低成本又要生物基——那不是PA12T的问题，是你需要的不是标准PA12T，是改性PA12T。
这时候可以看看宁波科隆新材目前在做的高性能改性PA12T方案，玻纤增强、阻燃、耐水解、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PA12T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，PA12T行情一天一个样，对苯二甲酸、十二碳二胺、玻纤、汇率都在动。
如果你需要EMS、杜邦、金发科技、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PA12T这事儿，四十的和一百的，差的不是六十。
单价是门槛，选对十二碳含量和性能才是底线。别让报价单上的数字迷惑了你——你买的不是一公斤塑料，是一公斤能做出低吸水耐高温制品的方案。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PA12T采购上踩过什么坑？是吸水率高还是尺寸不稳定？评论区聊聊，点赞最高的三位，送一份PA12T主流牌号选型对照表。
PA12T和PA10T有什么区别
PA12T十二碳含量怎么选
PA12T和PPA有什么区别
PA12T改性料厂家怎么选
PA12T注塑常见问题及解决
How much is PA12T per kilogram?
Quotes range from CNY 40/kg to CNY 100/kg. PA12T (poly(dodecamethylene terephthalamide)) is a long-carbon-chain semi-aromatic nylon, not one material: general, GF-reinforced, flame-retardant, low-water-absorption and high-temperature grades each carry a different price.
PA12T offers low water absorption, high-temperature resistance, dimensional stability and chemical resistance, and is used in engine compartments, electronics, SMT connectors and fuel systems.
1. Mainstream grade quotes (imported + domestic) — recent market references; live prices subject to same-day inquiry.
EMS (Switzerland)
Grivory PA12T series, general-purpose, approx. CNY 60-100/kg. Automotive, electronics, precision parts, fuel systems.
Grivory PA12T GF-reinforced, approx. CNY 70-110/kg. Premium structural parts, automotive, connectors.
DuPont (USA)
Zytel HTN series, high-temperature PA12T, approx. CNY 60-100/kg. Engine compartments, electronics, SMT connectors.
Kingfa (China)
Vicnyl PA12T series, general-purpose, approx. CNY 50-80/kg. General injection, automotive, electronics.
Vicnyl PA12T GF-reinforced, approx. CNY 55-85/kg. Structural parts, automotive, connectors.
Domestic PA12T (other Chinese producers)
General-purpose, approx. CNY 40-60/kg. Cost-effective; general injection, automotive, electronics.
GF-reinforced, approx. CNY 45-70/kg. Structural parts, automotive, connectors.
In short: domestic general CNY 40-60, domestic GF CNY 45-70, imported general CNY 50-100, imported GF/low-water-absorption CNY 60-110.
2. Why prices differ so much
Four factors: (1) Dodecanediamine source — petroleum-based is cheap; bio-based costs more but is more eco-friendly. (2) Glass-fiber reinforcement — GF costs 20-30% more than unreinforced. (3) Water absorption — general grades absorb about 1.5%; low-water-absorption grades below 0.8% cost more, deciding dimensional stability and hydrolysis resistance. (4) Brand and origin — for the same GF grade, EMS costs 30-50% more than domestic, paying for quality control and R&D.
3. Procurement pitfalls
The cheapest material often absorbs too much water or is dimensionally unstable, causing returns. Three traps to avoid:
First, test water absorption and HDT against the COA instead of trusting the grade name. Second, watch for substitution: some traders sell PA10T as PA12T or high-water-absorption as low; demand the COA, a dodecanediamine-content test and original packaging. Third, calculate total cost: A at CNY 40/kg with a 5% defect rate vs. B at CNY 60/kg with 1% — B is cheaper per part.
4. Standard grades not enough? Consider modified compounds
If you need flame retardancy AND low water absorption, reinforcement AND hydrolysis resistance — you need modified PA12T. Ningbo Kolong New Materials is developing high-performance modified PA12T grades covering GF reinforcement, flame retardancy, hydrolysis resistance and conductivity. Message us for a modified PA12T 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
PA12T prices change daily — terephthalic acid, dodecanediamine, glass fiber and exchange rates all move. Message us for same-day quotes on specific grades from EMS, DuPont, Kingfa or domestic producers; real numbers.
Final words
The gap between CNY 40 and CNY 100 is not CNY 60. Unit price is the threshold; choosing the right dodecanediamine content and performance is the baseline. You are buying a solution for making low-water-absorption high-temperature parts. Do the math per part, add rejected-goods loss, and you will know who is truly cheap.
What pitfalls have you hit buying PA12T — high water absorption or dimensional instability? The three most-liked comments will receive a PA12T grade selection guide.
