Chinese HDPE 5000S 2026: Sinopec, PetroChina, Hengli for Blow Molding

Summary: HDPE 5000S is a high-molecular-weight blow molding grade for jerry cans, large bottles, and IBC inner liners. Sinopec Yangzi, PetroChina Dushanzi, and Hengli are the primary export sources. Spec consistency is good from naphtha-based plants but ESCR varies — for premium ESCR applications, specialty bimodal grades from Borouge or Q-Chem still outperform. Always check COA and pilot-test before substituting.

Important note on grade designation: The "5000S" designation is used by multiple Chinese producers for different applications. This article focuses on the high-molecular-weight blow molding variant produced by Sinopec Yangzi (Nanjing) — MFI ~0.04 g/10min, HLMI ~9-10 — which is the canonical reference grade for jerry can and large-bottle blow molding. Some other "HDPE 5000S" listings (particularly from PetroChina or general traders) refer to raffia / monofilament grades with very different MFI (~0.9 g/10min) and density (~0.951) targeting fishing nets, ropes, agricultural nets, and woven sacks — these are NOT the same product despite the shared grade code. Verify MFI and application target on the producer's TDS before specifying.

Your 20-liter jerry cans for industrial detergent shipped fine for the first three months. The customer started reporting cracks at six months, all near the handle attachment. The original supplier was Borouge BB1530 at $1,400/MT CIF. You switched to Chinese HDPE 5000S at $1,150/MT CIF — a $250/MT saving on what looked like the same material.

What you bought was a similar-looking grade with different ESCR (environmental stress crack resistance). Standard HDPE 5000S targets F50 ≥100 hours under ASTM D1693 — adequate for water, oil, and many industrial liquids. The detergent's surfactant content was just aggressive enough to find the gap. If your application is sensitive to ESCR, the specification you need is "5000S with F50 ≥300 hours" or you need to step up to a bimodal grade like BB1530 or Q-Chem TR-571.

This is the recurring story of HDPE blow molding grade selection: the headline specs (density, MFI) match across producers, but the long-tail properties (ESCR, ash content, plant-to-plant consistency) diverge. Choosing the right 5000S source — or stepping up to a different grade — depends on what your container holds and how long it sits.

The Chinese HDPE naming convention is less systematized than PP. "5000S" is best understood as a Sinopec grade catalog number that has become a market standard:

• 5 = HDPE family (in Sinopec's internal nomenclature, "5" prefixes typically denote HDPE)
• 000 = Catalog series (Sinopec's blow molding family)
• S = Application designation, generally indicating blow molding (some plants use "B" for blow molding instead — 5000B)

Other Chinese HDPE grades follow similar patterns: 5502 (general blow molding), 5306 (smaller containers), 7260 (film). The first digit indicates HDPE, the next three are catalog identifiers, and the suffix usually maps to application — but the convention is not strictly enforced across producers.

The actual specification window for 5000S:

The MFI is the headline number most converters focus on, but for blow molding, HLMI matters more for line speed and parison control. A 5000S with MFI 0.04 but HLMI 11 will run differently than the same 5000S at HLMI 8 — even though the COA looks similar.

For current FOB pricing on HDPE 5000S by producer, see today's pricing.

The producer landscape for export-grade 5000S is narrower than for PP T30S. Public TDS data is incomplete, and several plants produce 5000S primarily for domestic distribution rather than export. The producers with the most established SE Asian export track record:

Tier 1: Naphtha-Cracker Producers (Tightest Spec Control)

Sinopec Yangzi (扬子石化, Nanjing) — The longest-established 5000S producer for SE Asian export. Naphtha-based. MFI consistency typically ±10% within batch, ±15% across batches. Yangzi's 5000S is the de facto market reference grade — most Vietnamese and Indonesian jerry-can converters tune their lines to Yangzi 5000S parameters.

Sinopec Maoming (茂名石化, Guangdong) — Southern China location with freight advantage to Vietnam (transit Shekou/Zhanjiang to HCMC: 2-5 days). Naphtha-based. 5000S available though export volumes are smaller than Yangzi's.

Sinopec Zhenhai (镇海炼化, Zhejiang) — Major refining complex near Ningbo. Produces blow molding HDPE; 5000S availability for export varies by allocation.

PetroChina Dushanzi (独山子石化, Xinjiang) — Inland location, ships via rail to coastal ports. PetroChina's primary HDPE blow molding plant. Produces 5000S and similar grades. Inland transport adds cost but spec quality is comparable to Sinopec.

Tier 2: Coastal Mega-Refiners

Hengli Petrochemical (恒力石化, Dalian) — 20 MTPA integrated crude-to-chemicals complex. Modern process control. Produces blow molding HDPE within a broader portfolio; specific 5000S export volumes are growing but smaller than Sinopec's. Tighter spec control than legacy plants when 5000S is in production schedule.

Zhejiang Petrochemical (浙江石化, Zhoushan) — World-scale integrated refinery (40 MTPA). HDPE production includes blow molding grades. Export-grade 5000S availability less established than Hengli's.

Tier 3: CTO/MTO Producers (Cost Leaders, Wider Tolerance)

Baofeng Energy (宝丰能源, Ningxia), Ningmei (宁煤), Zhongtian Hechuang (中天合创) — Coal-to-olefins producers. CTO-origin HDPE blow molding is real but less common in export 5000S supply than in PP. Cost advantage is meaningful (~$30-60/MT below naphtha producers when oil is above $80/bbl) but MFI tolerance is wider and trace impurity profile differs.

For 5000S specifically, CTO-origin product is more often seen in domestic Chinese supply than in export shipments. Verify with your sourcing channel whether the 5000S you're being quoted is naphtha or CTO origin — for ESCR-critical applications, prefer naphtha.

What's Not Verified in Public Data

Bimodal HDPE grades for 200L+ drums and IBC blow molding (matching Borouge BB1530, density 0.953, MFI <0.05 with high ESCR) are produced by Sinopec at Zhenhai and PetroChina at Daqing but are not verified in public TDS for export. If you're sourcing for IBC inner liners or 200L drums where ESCR is structurally critical, ask your supplier for the specific bimodal grade designation rather than accepting "5000S" as a blanket label.

For commodity blow molding applications, Chinese 5000S is functionally substitutable for several Western and Middle Eastern reference grades:

The pattern: for standard industrial blow molding (lubricants, water containers, basic detergent bottles, IBC outer cages), Chinese 5000S delivers cost-competitive alternative to Saudi and Korean grades. For premium ESCR applications (long-shelf-life agrochemicals, aggressive solvents, large-volume drums), the gap to Borouge or Q-Chem bimodal grades is real.

1-5L bottles (motor oil, household chemicals): Standard 5000S from any Tier 1 producer. ESCR rarely the binding constraint at this size.

5-25L jerry cans (lubricants, industrial chemicals, agrochemicals): Standard 5000S works for most contents. For aggressive contents (concentrated detergents, solvents, surfactants), specify ESCR ≥300 hours or step up to higher-ESCR grade.

IBC inner liners (1,000L flexitanks, food-grade IBCs): Bimodal grade preferred. Public-TDS Chinese export-grade options are limited; sourcing through KMI or established traders is the practical path.

200L industrial drums: Bimodal grade typically required for stress-crack resistance over the multi-year service life. Borouge BB1530 or Q-Chem TR-571 remain the established benchmarks. Chinese alternatives exist domestically but export availability is harder to confirm.

Large bottles for cosmetics/personal care: Standard 5000S from Sinopec Yangzi or Maoming generally meets specs. Verify color stability (post-consumer recycled-content blends may show yellowing).

Within a single Sinopec plant (e.g., Yangzi), MFI variation between batches is approximately ±10%. Across Sinopec plants producing 5000S (Yangzi vs. Maoming vs. Zhenhai), the variation widens to ±15%. ESCR is harder to control than MFI — even within a single plant, F50 hours can swing 30-50% between batches depending on catalyst lot, polymerization conditions, and additive package consistency.

Practical recommendation for blow molding lines:

1. Source from a single Sinopec plant and specify by name (e.g., "Yangzi 5000S only") if your line is sensitive to MFI variation
2. Request COA before shipment and check both MFI AND HLMI against your line's calibration window
3. For ESCR-critical applications, specify F50 minimum on the PO and require ESCR data on COA
4. Maintain a 24-48 hour test-run buffer when receiving from a new producer or batch

A typical Chinese trader will quote "HDPE 5000S" without specifying producer, plant, or feedstock pathway. Your PO should include:

1. Specific producer and plant — "Sinopec Yangzi 5000S," not "Sinopec 5000S"
2. Target MFI with tolerance — "MFI 0.04 ±0.005 g/10min"
3. Target HLMI with tolerance — "HLMI 9.0 ±1.0 g/10min" (often the more practical processability indicator)
4. Density — "0.953-0.956 g/cm³"
5. ESCR minimum (if your application demands it) — "F50 ≥300 hours per ASTM D1693, Condition B"
6. Food-contact certification (if required) — "FDA 21 CFR 177.1520 letter and GB 4806 compliance"
7. COA before shipment — compare against your line's calibration window

For ESCR-critical applications, also ask whether the 5000S being quoted is monomodal or bimodal. Standard 5000S is monomodal; bimodal variants exist but command a premium and are often labeled with a different suffix.

What is the MFI and density of HDPE 5000S?

HDPE 5000S is a high-molecular-weight blow molding grade with nominal density 0.953-0.956 g/cm³ and MFI approximately 0.04 g/10min (190°C/2.16kg) or HLMI approximately 9-10 g/10min (190°C/21.6kg). The exact values vary by producer — Sinopec Yangzi 5000S is the longest-established reference, with PetroChina and Hengli targeting similar windows. Always request the producer's specific TDS and a current COA before committing volume.

What is HDPE 5000S used for?

HDPE 5000S is designed for blow-molded containers in the 1-25 liter range — primarily jerry cans for industrial chemicals and lubricants, large bottles (motor oil, detergent, agrochemicals), and IBC inner liners. Some converters use it for 200L drums where ESCR (environmental stress crack resistance) is critical, though specialty bimodal grades typically perform better in that segment. The grade balances stiffness, ESCR, and processability for medium-to-large containers without the cost of bimodal alternatives.

Which Chinese producers make HDPE 5000S for export?

Sinopec Yangzi (Nanjing) is the longest-established producer for SE Asian export markets. Sinopec Maoming, Sinopec Zhenhai, and PetroChina Dushanzi also produce 5000S or close equivalents (sometimes labeled differently — e.g., 5000B, 5000J — but targeting the same MFI/density window). Hengli Petrochemical (Dalian) produces blow molding HDPE within the integrated mega-refinery; specific export-grade availability varies. CNOOC-Shell (Huizhou) has limited 5000S export track record. Public TDS data for export-grade specifications is incomplete — confirm availability and current spec via your sourcing channel.

How does HDPE 5000S compare to Borouge BB2588 or SABIC F04660?

Borouge BB2588 (UAE, density 0.958, MFI 0.23) targets detergent and cosmetic blow molding with higher ESCR than typical 5000S. SABIC F04660 and similar Saudi grades cover overlapping applications. For non-critical industrial jerry cans (10-20L), Chinese 5000S is functionally equivalent at lower CIF. For premium ESCR-critical applications (motor oil, agrochemicals with aggressive solvents), Borouge or SABIC bimodal grades typically perform better. Always pilot-test before substituting.

Is HDPE 5000S food-contact compliant?

Sinopec 5000S can meet FDA 21 CFR 177.1520 and GB 4806 food-contact requirements depending on the producing plant. Yangzi and Maoming-produced 5000S typically have FDA letters available. PetroChina Dushanzi also offers food-contact-compliant variants. CTO-origin HDPE blow molding grades may carry higher trace impurities — verify food-contact certification specifically by producing plant before specifying for food packaging.

What is ESCR and why does it matter for jerry-can applications?

ESCR (Environmental Stress Crack Resistance, ASTM D1693) measures how a polymer resists cracking when exposed to detergents, solvents, or stress. For jerry cans holding aggressive contents — motor oil, agrochemicals, household cleaners, industrial solvents — low ESCR causes premature cracking at stress points (handle, base, seam) over months of storage. Standard 5000S typically achieves F50 ≥100 hours under standard test conditions. Higher-ESCR alternatives (Borouge BB1530, Q-Chem TR-571) reach F50 >500 hours but at higher cost. For routine industrial jerry cans, standard 5000S is acceptable. For long-shelf-life premium products, specify higher ESCR.

Why does 5000S MFI vary between producers?

HDPE 5000S has a nominal MFI of 0.04 g/10min, but actual values range from approximately 0.03 to 0.05 across producers and even within a single producer's batches. Established Sinopec naphtha plants (Yangzi, Maoming, Zhenhai) — with decades of process refinement and mature operational baselines — typically maintain tighter MFI control (±10% within a plant). Newer plants, including most CTO producers and recent entrants, may show wider tolerance (±20%) reflecting less mature operational discipline rather than an inherent feedstock effect. For high-speed blow molding lines calibrated to a specific MFI, batch-to-batch variation can affect parison sag, wall thickness uniformity, and cycle time. Request COA before each shipment and specify a tolerance band on your PO.

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Related Reading

• HDPE 5000S vs. 5502 vs. 7260: Grade Selection Guide
• Chinese PP T30S: Sinopec, PetroChina, CTO for Woven Sack
• China Polymer Producers Guide
• CTO/PDH vs. Naphtha: Why Chinese Polymers Cost Less

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This analysis covers the Chinese HDPE 5000S grade landscape as of Q2 2026. Producer capacities, pricing positions, and quality specifications can change. For current pricing on specific 5000S sources, tell us what you need — polymer type, application, volume, and destination — and our sourcing team will respond with matched producers and current FOB pricing.

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