AS多少钱一公斤？
这个问题一搜，从九块五一公斤到十四块六一公斤，报价差得比丙烯腈含量还多。有人说我买的九块五的拜耳52485用得挺好，有人说我买的十四块六的奇美PN-117L200才叫高透明。到底差在哪？
说实话，问AS多少钱一公斤的人，大概率还没搞懂AS这东西不是一个料——通用级、高透明级、高流动级、高强度级、食品级，每个分支价格都不一样。你拿通用级的价和高透明比，那不叫比价，叫被忽悠。
AS也叫SAN，苯乙烯-丙烯腈共聚物，比PS耐化学、比ABS透明，常用于透明容器、化妆品瓶、电器外壳。
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。
奇美（Chi Mei，中国台湾/镇江）
PN-107 L125，高透明高流动，参考价约11元/公斤。食品容器、密封罐。
PN-117C，通用级，参考价约12.6元/公斤。通用注塑、透明制品。
PN-117L200，高流动级，参考价约14.6元/公斤。薄壁制品、复杂结构。
PN-118L150，通用级，参考价约13.8元/公斤。通用注塑、日用品。
D-168，高强度级，参考价约13-15元/公斤。工业部件、结构件。
巴斯夫（BASF，德国）
368R 77851，耐化学腐蚀透明级，参考价约15-18元/公斤。高端透明、耐化学。
锦湖（Kumho，韩国）
326A，注塑级，参考价约15-17元/公斤。通用注塑、透明制品。
335T，注塑级，参考价约15.8元/公斤。高流动、薄壁制品。
拜耳/科思创（Bayer/Covestro，德国）
52485，注塑级，参考价约9.5元/公斤。通用注塑、日用品。
国产AS（宁波LG/台化等中企）
国产通用级，参考价约10-13元/公斤。性价比高，通用注塑、日用品。
NF2200AF，通用注塑级耐低温，参考价约11-13元/公斤。台化、通用制品。
一句话总结：通用级9.5-13块，高透明/高流动13-15块，高端耐化学15-18块。你要的是啥丙烯腈含量和流动性，决定了你该在哪一档选。
二、同是AS，价差凭什么这么大
AS的价格差，主要藏在四个地方。
第一，丙烯腈含量不同。20%丙烯腈便宜，30%以上耐化学好但贵。丙烯腈含量越高，耐化学越好，但加工越难。
第二，流动性不同。通用流动适合普通注塑价格便宜，高流动适合薄壁和复杂结构价格贵。高流动AS需要特殊工艺。
第三，透明度不同。通用级透明度一般价格便宜，高透明级透光率90%以上价格贵。透明容器必须高透明。
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，巴斯夫比国产贵30-50%，贵的是品控和研发。
三、采购避坑：别让丙烯腈含量骗了你
我见过太多采购，比价比到最后选了最便宜的九块五的，然后做出来的容器耐化学差、应力开裂、客户退货，一次损失够买半年的好料。
AS采购这行，水比你想的深。三个坑必须绕开：
第一，看熔指和丙烯腈含量不看牌号。同一个牌号不同批次性能可能波动，拿到料先测熔指和丙烯腈含量，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PS当AS卖，拿低丙烯腈当高丙烯腈卖。要COA、要丙烯腈含量检测、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9.5块，做出来次品率5%；B料单价13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——比如要阻燃又要高透明、要增强又要耐化学、要低成本又要食品级——那不是AS的问题，是你需要的不是标准AS，是改性AS。
这时候可以看看宁波科隆新材目前在做的高性能改性AS方案，玻纤增强、阻燃、耐化学、抗静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AS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，AS行情一天一个样，苯乙烯、丙烯腈、汇率都在动。
如果你需要奇美、巴斯夫、锦湖、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AS这事儿，九块五的和十四块六的，差的不是五块一。
单价是门槛，选对丙烯腈含量和流动性才是底线。别让报价单上的数字迷惑了你——你买的不是一公斤塑料，是一公斤能做出耐化学透明容器的方案。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AS采购上踩过什么坑？是应力开裂还是耐化学差？评论区聊聊，点赞最高的三位，送一份AS主流牌号选型对照表。
AS和ABS有什么区别
AS丙烯腈含量怎么选
AS和PS有什么区别
AS改性料厂家怎么选
AS注塑常见问题及解决
How much is AS per kilogram?
A quick search shows quotes ranging from CNY 9.5/kg to CNY 14.6/kg — a spread wider than the acrylonitrile content itself. Some buyers say the CNY 9.5 Bayer 52485 works fine; others insist only the CNY 14.6 Chi Mei PN-117L200 counts as high transparency. Where does the difference really lie?
Honestly, anyone asking "how much is AS per kilo" probably has not yet understood that AS is not a single material — general-purpose, high-transparency, high-flow, high-strength and food-grade grades each carry a different price. Comparing a general-purpose quote with a high-transparency one is not price comparison; it is how you get fooled.
AS, also known as SAN (styrene-acrylonitrile copolymer), is more chemical-resistant than PS and more transparent than ABS. It is commonly used in transparent containers, cosmetic bottles and appliance housings.
1. Mainstream grade quotes (imported + domestic)
Here are the high-volume grades and reference prices on the market. Figures below are recent market references; live prices are subject to same-day inquiry.
Chi Mei (Taiwan/Zhenjiang, China)
PN-107 L125, high-transparency high-flow grade, approx. CNY 11/kg. Food containers, sealed jars.
PN-117C, general-purpose grade, approx. CNY 12.6/kg. General injection molding, transparent products.
PN-117L200, high-flow grade, approx. CNY 14.6/kg. Thin-wall parts, complex structures.
PN-118L150, general-purpose grade, approx. CNY 13.8/kg. General injection molding, daily products.
D-168, high-strength grade, approx. CNY 13-15/kg. Industrial parts, structural parts.
BASF (Germany)
368R 77851, chemical-resistant transparent grade, approx. CNY 15-18/kg. Premium transparency, chemical resistance.
Kumho (South Korea)
326A, injection grade, approx. CNY 15-17/kg. General injection molding, transparent products.
335T, injection grade, approx. CNY 15.8/kg. High flow, thin-wall parts.
Bayer/Covestro (Germany)
52485, injection grade, approx. CNY 9.5/kg. General injection molding, daily products.
Domestic AS (Ningbo LG, Taita Chemical and other Chinese producers)
Domestic general-purpose grade, approx. CNY 10-13/kg. Cost-effective; general injection molding, daily products.
NF2200AF, general-purpose injection grade with low-temperature resistance, approx. CNY 11-13/kg. Taita Chemical; general products.
In short: general-purpose CNY 9.5-13, high-transparency/high-flow CNY 13-15, premium chemical-resistant CNY 15-18. The acrylonitrile content and flow you need decide which tier you belong in.
2. Why do AS prices differ so much
The AS price gap mainly hides in four factors.
First, acrylonitrile content. Around 20% acrylonitrile is cheap; above 30% gives better chemical resistance but costs more. The higher the acrylonitrile content, the better the chemical resistance, but the harder the processing.
Second, flow. General flow suits ordinary injection molding and is cheap; high flow suits thin-wall and complex structures and costs more. High-flow AS needs special processing.
Third, transparency. General-purpose grades have average transparency and are cheap; high-transparency grades with light transmittance above 90% cost more. Transparent containers demand high transparency.
Fourth, brand and origin. Imports carry a premium but offer batch stability; domestic grades offer value but uneven quality. For the same general-purpose grade, BASF costs 30-50% more than domestic — you pay for quality control and R&D.
3. Procurement pitfalls: don't let the acrylonitrile content fool you
I have seen too many buyers end up choosing the cheapest CNY 9.5 material after endless price comparison, only to have containers fail on chemical resistance and stress cracking, trigger customer returns — one loss enough to buy half a year of good material.
Procurement of AS is deeper water than you think. Three traps must be avoided:
First, test melt flow index and acrylonitrile content instead of trusting the grade name. Performance of the same grade can fluctuate between batches. Test against the COA before use. Don't listen to salespeople saying "close enough" — close enough is far apart.
Second, watch out for substitution fraud. Some traders sell PS as AS, or low-acrylonitrile as high-acrylonitrile. Demand the COA, an acrylonitrile-content test and original packaging. Only accept material with all three.
Third, don't compare unit price alone — calculate total cost. Material A at CNY 9.5/kg yields a 5% defect rate; material B at CNY 13/kg yields 1%. Per finished part, B is actually cheaper.
4. Standard grades not enough? Consider modified compounds
If standard grades always fall short — you need flame retardancy AND high transparency, reinforcement AND chemical resistance, or low cost AND food grade — the problem is not AS itself; you don't need standard AS, you need modified AS.
Ningbo Kolong New Materials is developing high-performance modified AS solutions, with grades covering glass-fiber reinforcement, flame retardancy, chemical resistance and antistatic properties. For special needs, message us for a modified AS quote reference — it saves not only money but also trial-and-error time compared with buying base resin and tuning additives yourself.
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. AS prices change daily — styrene, acrylonitrile and exchange rates all move.
If you need same-day quotes for specific grades from Chi Mei, BASF, Kumho or domestic producers, message us and we will send a live price sheet. No beating around the bush — real numbers.
Final words
For AS, the difference between CNY 9.5 and CNY 14.6 is not CNY 5.1.
Unit price is the threshold; choosing the right acrylonitrile content and flow is the baseline. Don't let the quote sheet fool you — you are not buying one kilogram of plastic, you are buying a solution for making chemical-resistant transparent containers. Do the math per finished part, add in the loss from rejected goods, and you will know who is truly cheap and who is truly expensive.
What pitfalls have you hit when buying AS — stress cracking or poor chemical resistance? Share in the comments; the three most-liked readers will receive an AS grade selection guide.
