HDPE多少钱一公斤？
这个问题一搜，从七块九一公斤到十三块一公斤，报价差得比密度还多。有人说我买的八块一的大庆石化2480用得挺好，有人说我买的十三的陶氏3364才叫电线电缆级。到底差在哪？
说实话，问HDPE多少钱一公斤的人，大概率还没搞懂HDPE这东西不是一个料——注塑级、吹塑级、薄膜级、管材级、电线电缆级，每个分支价格都不一样。你拿通用注塑的价和电线电缆级比，那不叫比价，叫被忽悠。
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。
埃克森美孚（ExxonMobil，美国/沙特）
HMA-016，注塑级高光泽高抗冲，参考价约8.5-9元/公斤。食品容器、玩具、尺寸稳定。
HD6480，薄膜级，参考价约10.52元/公斤。通用薄膜、包装。
Paxon AD60-005，吹塑级，参考价约10.88元/公斤。瓶、容器、工业包装。
陶氏（Dow，美国）
DMDA-6200 NT 7，注塑级薄壁制品，参考价约8.6-12.5元/公斤。家用品、卫浴、塑料瓶。
DGDK-3364，电线电缆级，参考价约13.06元/公斤。热稳定、绝缘层。
DMDA-6320，拉丝级，参考价约10-12元/公斤。编织袋、绳索。
利安德巴塞尔（LyondellBasell，荷兰）
M5370，增强级高强度注塑级，参考价约12.96元/公斤。工业部件、周转箱。
中石化/中石油（中企大厂）
茂名石化HHM5502LW，吹塑级高刚性耐低温，参考价约11.08元/公斤。瓶、桶、容器。
大庆石化2480，薄膜级，参考价约8.17元/公斤。通用薄膜、包装。
抚顺石化2911，注塑级，参考价约10.22元/公斤。周转箱、日用品。
独山子石化DMDA-8008，注塑级，参考价约9-10元/公斤。通用注塑、日用品。
一句话总结：薄膜/通用注塑8-10块，吹塑/拉丝10-12块，电线电缆/增强级12-13块。你要的是啥用途和熔指，决定了你该在哪一档选。
二、同是HDPE，价差凭什么这么大
HDPE的价格差，主要藏在四个地方。
第一，熔指不同。低熔指适合吹塑和薄膜价格适中，高熔指适合注塑和薄壁价格略高。熔指决定加工方式。
第二，密度不同。密度0.94-0.96是常规HDPE，密度0.96以上是高密度级价格略高。密度越高，刚性越好。
第三，用途不同。通用级便宜，食品级/医疗级贵，电线电缆级更贵。特殊用途需要特殊配方和认证。
第四，品牌和产地。进口溢价高但批次稳定，国产性价比高但质量参差。同样是薄膜级，陶氏比中石化贵20-30%，贵的是品控和研发。
三、采购避坑：别让熔指骗了你
我见过太多采购，比价比到最后选了最便宜的八块的，然后做出来的薄膜强度不够、瓶身变形、客户退货，一次损失够买半年的好料。
HDPE采购这行，水比你想的深。三个坑必须绕开：
第一，看熔指和密度不看牌号。同一个牌号不同批次性能可能波动，拿到料先测熔指和密度，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LDPE当HDPE卖，拿回收料当新料卖。要COA、要密度检测、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8块，做出来次品率5%；B料单价10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——比如要阻燃又要高抗冲、要增强又要低成本、要导电又要食品级——那不是HDPE的问题，是你需要的不是标准HDPE，是改性HDPE。
这时候可以看看宁波科隆新材目前在做的高性能改性HDPE方案，玻纤增强、阻燃、抗静电、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HDPE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，HDPE行情一天一个样，原油、乙烯、汇率都在动。
如果你需要埃克森美孚、陶氏、利安德巴塞尔、中石化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HDPE这事儿，八块的和十三的，差的不是五块。
单价是门槛，选对熔指和用途才是底线。别让报价单上的数字迷惑了你——你买的不是一公斤塑料，是一公斤能做出合格制品的方案。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HDPE采购上踩过什么坑？是强度不够还是变形？评论区聊聊，点赞最高的三位，送一份HDPE主流牌号选型对照表。
HDPE和LDPE有什么区别
HDPE熔指怎么选
HDPE和PP有什么区别
HDPE改性料厂家怎么选
HDPE注塑常见问题及解决
How much is HDPE per kilogram?
Quotes range from CNY 7.9/kg to CNY 13.1/kg. HDPE (high-density polyethylene) is not one material: injection, blow-molding, film, pipe and wire-and-cable grades each carry a different price. Comparing a general injection quote with a wire-and-cable grade is not price comparison; it is how you get fooled.
1. Mainstream grade quotes (imported + domestic) — recent market references; live prices subject to same-day inquiry.
ExxonMobil (USA/Saudi Arabia)
HMA-016, injection grade, high gloss, high impact, approx. CNY 8.5-9/kg. Food containers, toys, dimensional stability.
HD6480, film grade, approx. CNY 10.52/kg. General film, packaging.
Paxon AD60-005, blow-molding grade, approx. CNY 10.88/kg. Bottles, containers, industrial packaging.
Dow (USA)
DMDA-6200 NT 7, injection grade, thin-wall parts, approx. CNY 8.6-12.5/kg. Household items, sanitary ware, plastic bottles.
DGDK-3364, wire-and-cable grade, approx. CNY 13.06/kg. Thermal stability, insulation.
DMDA-6320, fiber grade, approx. CNY 10-12/kg. Woven bags, ropes.
LyondellBasell (Netherlands)
M5370, reinforced, high-strength injection grade, approx. CNY 12.96/kg. Industrial parts, crates.
Sinopec/PetroChina (Chinese majors)
Maoming HHM5502LW, blow-molding, high-rigidity, low-temperature-resistant, approx. CNY 11.08/kg. Bottles, drums, containers.
Daqing 2480, film grade, approx. CNY 8.17/kg. General film, packaging.
Fushun 2911, injection grade, approx. CNY 10.22/kg. Crates, daily products.
Dushanzi DMDA-8008, injection grade, approx. CNY 9-10/kg. General injection, daily products.
In short: film/general injection CNY 8-10, blow-molding/fiber CNY 10-12, wire-and-cable/reinforced CNY 12-13.
2. Why prices differ so much
Four factors: (1) Melt flow index — low MFI suits blow molding and film at mid-price; high MFI suits injection and thin-wall at a slightly higher price. (2) Density — 0.94-0.96 is standard HDPE; above 0.96 gives higher rigidity and a slightly higher price. (3) Application — general is cheap; food/medical cost more; wire-and-cable costs most, needing special formulations and certification. (4) Brand and origin — for the same film grade, Dow costs 20-30% more than Sinopec, paying for quality control and R&D.
3. Procurement pitfalls
The cheapest material often means weak film or deformed bottles, causing returns. Three traps to avoid:
First, test MFI and density against the COA instead of trusting the grade name. Second, watch for substitution: some traders sell LDPE as HDPE or recycled as virgin; demand the COA, a density test and original packaging. Third, calculate total cost: A at CNY 8/kg with a 5% defect rate vs. B at CNY 10/kg with 1% — B is cheaper per part.
4. Standard grades not enough? Consider modified compounds
If you need flame retardancy AND high impact, reinforcement AND low cost — you need modified HDPE. Ningbo Kolong New Materials is developing high-performance modified HDPE grades covering glass-fiber reinforcement, flame retardancy, antistatic and conductivity. Message us for a modified HDPE 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
HDPE prices change daily — crude oil, ethylene and exchange rates all move. Message us for same-day quotes on specific grades from ExxonMobil, Dow, LyondellBasell or Sinopec; real numbers.
Final words
The gap between CNY 8 and CNY 13 is not CNY 5. Unit price is the threshold; choosing the right MFI and application is the baseline. Do the math per part, add rejected-goods loss, and you will know who is truly cheap.
What pitfalls have you hit buying HDPE — insufficient strength or deformation? The three most-liked comments will receive an HDPE grade selection guide.
