PA6/12多少钱一公斤？
这个问题一搜，从二十五块一公斤到七十块一公斤，报价差得比12含量还多。有人说我买的二十五的国产通用用得挺好，有人说我买的七十的EMS高端才叫低吸水。到底差在哪？
说实话，问PA6/12多少钱一公斤的人，大概率还没搞懂PA6/12这东西不是一个料——通用级、玻纤增强级、食品级、高粘度级、低吸水级，每个分支价格都不一样。你拿通用级的价和玻纤增强比，那不叫比价，叫被忽悠。
PA6/12就是聚酰胺6/12共聚物，结合了PA6的易加工和PA12的低吸水，常用于汽车管路、精密齿轮、薄膜、刷丝。
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。
杜邦（DuPont，美国）
Zytel PA6/12系列，通用级，参考价约30-50元/公斤。通用注塑、汽车管路。
Zytel PA6/12玻纤增强级，参考价约40-60元/公斤。汽车结构件、工业机械。
巴斯夫（BASF，德国）
Ultramid PA6/12系列，通用级，参考价约30-50元/公斤。通用注塑、汽车、电子。
Ultramid PA6/12玻纤增强级，参考价约40-55元/公斤。结构件、汽车、连接器。
EMS（瑞士）
Grilamid PA6/12系列，通用级，参考价约40-70元/公斤。汽车、电子、精密零件。
Grilamid PA6/12玻纤增强级，参考价约50-85元/公斤。高端结构件、汽车、工业机械。
国产PA6/12（中企大厂）
国产通用级，参考价约25-40元/公斤。性价比高，通用注塑、刷丝。
国产玻纤增强级，参考价约30-50元/公斤。结构件、汽车、工业机械。
一句话总结：国产通用25-40块，国产玻纤增强30-50块，进口通用30-50块，进口玻纤增强/高端40-85块。你要的是啥12含量和性能，决定了你该在哪一档选。
二、同是PA6/12，价差凭什么这么大
PA6/12的价格差，主要藏在四个地方。
第一，12含量不同。12含量20%左右便宜，含量50%以上低吸水但贵。12含量越高，吸水率越低，尺寸稳定性越好。
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，用途不同。通用级便宜，食品级/医疗级贵。特殊用途需要特殊认证。
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。同样是通用级，EMS比国产贵30-50%，贵的是品控和研发。
三、采购避坑：别让12含量骗了你
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。
PA6/12采购这行，水比你想的深。三个坑必须绕开：
第一，看熔指和吸水率不看牌号。同一个牌号不同批次性能可能波动，拿到料先测熔指和吸水率，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PA6当PA6/12卖，拿低12含量当高含量卖。要COA、要12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25块，做出来次品率5%；B料单价40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、要低成本又要食品级——那不是PA6/12的问题，是你需要的不是标准PA6/12，是改性PA6/12。
这时候可以看看宁波科隆新材目前在做的高性能改性PA6/12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PA6/12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，PA6/12行情一天一个样，己内酰胺、十二内酰胺、玻纤、汇率都在动。
如果你需要杜邦、巴斯夫、EMS、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PA6/12这事儿，二十五的和七十的，差的不是四十五。
单价是门槛，选对12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制品的方案。把账算到每件制品上，再加上退货损失，你才知道谁真便宜谁真贵。
你在PA6/12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PA6/12主流牌号选型对照表。
PA6/12和PA6有什么区别
PA6/12 12含量怎么选
PA6/12和PA12有什么区别
PA6/12改性料厂家怎么选
PA6/12注塑常见问题及解决
How much is PA6/12 per kilogram?
Quotes range from CNY 25/kg to CNY 70/kg. PA6/12 (nylon 6/12 copolymer) is not one material: general, GF-reinforced, food-grade, high-viscosity and low-water-absorption grades each carry a different price.
The copolymer combines PA6's easy processing with PA12's low water absorption, and is used in automotive tubing, precision gears, film and bristles.
1. Mainstream grade quotes (imported + domestic) — recent market references; live prices subject to same-day inquiry.
DuPont (USA)
Zytel PA6/12 series, general-purpose, approx. CNY 30-50/kg. General injection, automotive tubing.
Zytel PA6/12 GF-reinforced, approx. CNY 40-60/kg. Automotive structural parts, industrial machinery.
BASF (Germany)
Ultramid PA6/12 series, general-purpose, approx. CNY 30-50/kg. General injection, automotive, electronics.
Ultramid PA6/12 GF-reinforced, approx. CNY 40-55/kg. Structural parts, automotive, connectors.
EMS (Switzerland)
Grilamid PA6/12 series, general-purpose, approx. CNY 40-70/kg. Automotive, electronics, precision parts.
Grilamid PA6/12 GF-reinforced, approx. CNY 50-85/kg. Premium structural parts, automotive, industrial machinery.
Domestic PA6/12 (Chinese majors)
General-purpose, approx. CNY 25-40/kg. Cost-effective; general injection, bristles.
GF-reinforced, approx. CNY 30-50/kg. Structural parts, automotive, industrial machinery.
In short: domestic general CNY 25-40, domestic GF CNY 30-50, imported general CNY 30-50, imported GF/premium CNY 40-85.
2. Why prices differ so much
Four factors: (1) 12 content — around 20% is cheap; above 50% gives lower water absorption and better dimensional stability but costs more. (2) Glass-fiber reinforcement — GF costs 20-30% more than unreinforced. (3) Application — general is cheap; food/medical grades need special certification. (4) Brand and origin — for the same general 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 MFI and water absorption against the COA instead of trusting the grade name. Second, watch for substitution: some traders sell PA6 as PA6/12 or low-12 as high-12; demand the COA, a 12-content test and original packaging. Third, calculate total cost: A at CNY 25/kg with a 5% defect rate vs. B at CNY 40/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 PA6/12. Ningbo Kolong New Materials is developing high-performance modified PA6/12 grades covering GF reinforcement, flame retardancy, hydrolysis resistance and conductivity. Message us for a modified PA6/12 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
PA6/12 prices change daily — caprolactam, laurolactam, glass fiber and exchange rates all move. Message us for same-day quotes on specific grades from DuPont, BASF, EMS or domestic producers; real numbers.
Final words
The gap between CNY 25 and CNY 70 is not CNY 45. Unit price is the threshold; choosing the right 12 content and performance is the baseline. You are buying a solution for making low-water-absorption parts. Do the math per part, add returns, and you will know who is truly cheap.
What pitfalls have you hit buying PA6/12 — high water absorption or dimensional instability? The three most-liked comments will receive a PA6/12 grade selection guide.
