Chinese HDPE 5502 2026: Sinopec Yanshan, Lanzhou, Hengli Comparison

Summary: HDPE 5502 is the workhorse Chinese blow molding grade for medium-volume bottles, jerry cans, and crate inserts. MFI 0.35, density 0.954. Sinopec Yanshan 5502AA dominates SE Asian export via 15+ year track record and tight MFI control. PetroChina Lanzhou 5502LW and Hengli are credible alternatives on price. For food-contact applications, prefer Yanshan 5502AA. Always specify the full grade designation (5502AA vs. 5502LW), not just "5502."

A Vietnamese converter ordered "5502" from a new trader. The PO said HDPE 5502, MFI 0.35, density 0.954 — the standard spec. The container arrived labeled HDPE 5502LW from PetroChina Lanzhou. The COA was within spec on every measurable: MFI 0.36, density 0.954, tensile yield 27 MPa. But the converter's blow molding line was calibrated for Sinopec Yanshan 5502AA. Bottle wall thickness drifted 8% over the first shift. Reject rate climbed from 1% to 4%. The supervisor recalibrated the line, but it took 36 hours of test runs to stabilize.

The grades were both naphtha-based, both within nominal spec, and both legitimately called "5502." But they came from different reactors with different catalysts, and their molecular weight distributions weren't identical even though their MFI matched. For high-speed blow molding lines, that subtle difference matters.

This is the recurring trap with Chinese HDPE 5502: the grade designation is shared across producers, but the actual product behavior on your line is plant-specific. "5502" alone on a PO is incomplete. "5502AA" or "5502LW" — with the producer suffix — is the specification you need.

The Chinese HDPE naming convention is producer-specific rather than grade-universal:

• 5 = HDPE family (Sinopec/PetroChina internal nomenclature)
• 5 = Catalog series (medium-flow blow molding subfamily)
• 02 = Specific grade variant within the series
• Suffix = Plant designation, sometimes feedstock indicator
  • AA = Sinopec Yanshan (Beijing, 燕山)
  • LW = PetroChina Lanzhou (Gansu, 兰州)
  • F or FA = Sinopec Maoming (Guangdong, 茂名) variants
  • (none) = Often Hengli or coastal mega-refiner output

Two grades named "5502" can come from different reactors, different catalyst systems, and different process conditions. The headline spec (MFI 0.35, density 0.954) is the target window — but the molecular weight distribution, ESCR, and processing behavior are plant-specific.

Note on suffix conventions: The mapping above (AA → Yanshan, LW → Lanzhou, F/FA → Maoming) reflects market shorthand commonly used in trader quotes and SE Asian distribution channels. Producer-published TDS and official catalogs do not always use these suffixes consistently — verify the specific producer-grade combination with your trader before specifying on a PO. The principle holds even where the suffix doesn't: same nominal "5502" from different plants behaves differently on your line.

The actual specification window for HDPE 5502:

The ESCR is notably lower than 5000S — 5502 is not designed for jerry cans holding aggressive solvents, surfactants, or long-shelf-life agrochemicals. For those applications, 5000S or a bimodal grade is the correct choice.

For current FOB pricing on HDPE 5502 by producer, see today's pricing.

Tier 1: Sinopec Yanshan 5502AA — The Market Standard

Sinopec Yanshan (燕山石化, Beijing) produces 5502AA — the de facto reference grade for SE Asian HDPE 5502 imports.

• Naphtha-cracker-based; one of Sinopec's oldest and most established petrochemical complexes
• MFI consistency: typically 0.32-0.38 within a plant, ±10% batch-to-batch
• Ships from Tianjin port; well-established freight lanes to Vietnam, Indonesia, Philippines
• 15+ years export track record into SE Asia
• Most converters' blow molding lines are tuned to Yanshan 5502AA as the baseline reference
• Food-contact certifications (FDA 21 CFR 177.1520, GB 4806) widely available for Yanshan output
• Pricing typically commands a $20-40/MT premium over CTO and lesser-known coastal producers

Why pay the Yanshan premium? Three reasons: tighter MFI variation (less line recalibration when receiving new batches), longer track record (your QC team has seen Yanshan COAs hundreds of times), and easier food-contact documentation. For high-volume converters running automated lines at 200+ bottles per minute, the consistency premium often pays for itself in reject-rate reduction.

Tier 2: PetroChina Lanzhou 5502LW

PetroChina Lanzhou (兰州石化, Gansu) produces 5502LW.

• Naphtha-cracker-based; one of PetroChina's oldest petrochemical complexes
• Comparable nominal spec to Yanshan 5502AA (density 0.954, MFI 0.35)
• Inland location (Gansu) — ships via rail to coastal ports (Tianjin, Qingdao, Shanghai)
• Inland transport adds ~$15-25/MT freight cost vs. coastal-direct supply
• Smaller SE Asian export footprint than Yanshan; more common in Pakistan and Central Asian markets
• Food-contact compliance available but documentation less standardized for export

When to use Lanzhou 5502LW: When Yanshan 5502AA allocation is tight (turnaround season, year-end demand surge), Lanzhou 5502LW is the closest naphtha-based substitute. Pilot trials are advised — even though the spec matches on paper, MWD and ESCR can differ enough to require minor line adjustments.

Tier 3: Hengli Petrochemical and Coastal Mega-Refiners

Hengli Petrochemical (恒力石化, Dalian) — 20 MTPA integrated crude-to-chemicals complex. Modern process control; tighter spec consistency than legacy plants when 5502-equivalent grades are in production. Export volumes for 5502 specifically are growing but smaller than Yanshan's. Hengli sometimes labels with different designations (HG-series numbering) targeting the same window.

Zhejiang Petrochemical (浙江石化, Zhoushan) — World-scale integrated refinery. HDPE production includes blow molding grades; specific 5502 export availability less established.

Sinopec Zhenhai (镇海炼化, Ningbo) — Major refining complex; produces HDPE blow molding grades. Allocation between Yanshan and Zhenhai for export 5502 varies seasonally.

Tier 4: CTO/MTO Producers

Baofeng Energy, Ningmei, Zhongtian Hechuang — Coal-to-olefins producers in Ningxia and Inner Mongolia. CTO-origin HDPE blow molding is real but less common in 5502 export supply. Cost advantage of $30-60/MT below naphtha producers when Brent is above $80/bbl. Wider MFI tolerance (±15-20% batch-to-batch). For non-food-contact applications where line tolerance is forgiving, CTO-origin 5502 offers meaningful cost savings.

HDPE 5502 sits in a specific MFI window (0.35, slow-flow) that doesn't directly match the most common Western/ME blow molding grades:

The pattern: For a Vietnamese or Indonesian converter switching from Lotte BS500 or ExxonMobil HMA-014, Sinopec Yanshan 5502AA is a near-direct substitute with comparable processability. For converters running LG Chem ME9180 or SABIC M40060 at higher MFI, Chinese 5602 or 5306 grades are closer matches than 5502.

The Korean reference shows what tight control looks like. Sinopec Yanshan is the closest Chinese equivalent. As you move down the tiers, variation widens — affecting blow molding line stability, particularly at high speeds.

Practical recommendation for blow molding lines:

1. For high-speed automated lines (>150 bottles/min): Yanshan 5502AA preferred; specify by name on PO
2. For medium-speed lines (50-150 bottles/min): Yanshan or Lanzhou acceptable; verify COA each shipment
3. For low-speed manual or semi-automated lines: any Tier 1-3 producer; CTO acceptable with COA verification
4. Always maintain 24-hour test-run buffer when receiving from a new producer or first shipment from a new plant

A bare "HDPE 5502" on a PO leaves the producer ambiguous. Your PO should include:

1. Specific grade designation — "5502AA" or "5502LW" — not just "5502"
2. Producing plant — "Sinopec Yanshan 5502AA" or "PetroChina Lanzhou 5502LW"
3. Target MFI with tolerance — "MFI 0.35 ±0.05 g/10min"
4. Density — "0.954 g/cm³"
5. Food-contact certification (if required) — "FDA 21 CFR 177.1520 letter and GB 4806 compliance, plant-specific documentation"
6. COA before shipment — compare MFI, density, and isotacticity (where reported) against your line's calibration
7. Acceptable substitutes (or NOT) — explicitly state whether Lanzhou 5502LW is acceptable when Yanshan is unavailable, or whether the order is Yanshan-only

What is the difference between HDPE 5502AA and 5502LW?

5502AA is the Sinopec Yanshan designation (Beijing plant); 5502LW is the PetroChina Lanzhou designation (Gansu plant). Both target the same nominal specification — density 0.954 g/cm³, MFI 0.35 g/10min — but they are distinct products from distinct catalysts and process conditions. Yanshan 5502AA has the longer SE Asian export track record and tighter MFI consistency; Lanzhou 5502LW is naphtha-based, comparable on paper, but inland-shipped and slightly less common in Vietnam/Indonesia spot markets. Always specify by full designation (5502AA vs. 5502LW) on your PO — "5502" alone leaves the producer ambiguous.

What is HDPE 5502 used for?

HDPE 5502 is a general-purpose blow molding grade with MFI 0.35 g/10min — higher flow than 5000S, lower than dedicated bottle grades. Primary applications: medium-volume bottles (motor oil, household chemicals, agrochemical packaging), small-to-medium jerry cans (1-10L), crate inserts, and various injection-blown containers. The MFI window makes it more forgiving than 5000S on high-speed blow molding lines but with somewhat lower stiffness and ESCR than purpose-built bimodal grades.

Which Chinese producers make HDPE 5502 for export?

Sinopec Yanshan (Beijing) is the longest-established producer, exporting 5502AA to SE Asia for over a decade. PetroChina Lanzhou produces 5502LW (naphtha-based, inland location ships via rail to coastal ports). Hengli Petrochemical (Dalian) produces blow molding HDPE within its 20 MTPA integrated complex. Coastal CTO and naphtha producers also produce 5502 or close equivalents under various designations. Yanshan dominates Vietnam/Indonesia spot markets due to long-established relationships, established freight lanes via Tianjin, and tight MFI control.

Why does Yanshan dominate SE Asian HDPE 5502 exports?

Three reasons: (1) Track record — Yanshan has been exporting 5502AA to Vietnam, Indonesia, and Philippines for 15+ years; converters' processing parameters are tuned to Yanshan baseline. (2) MFI consistency — Yanshan's batch-to-batch MFI variation is approximately ±10% (vs. ±15-20% from newer entrants). (3) Logistics — Yanshan ships through Tianjin with established freight lanes and consolidator relationships into HCMC, Hai Phong, Tanjung Priok. Other producers (Lanzhou, Hengli, CTO plants) compete on price during oversupplied periods but Yanshan retains the volume baseline.

Is HDPE 5502 food-contact compliant?

Sinopec Yanshan 5502AA is the most commonly food-contact-certified Chinese 5502, with FDA 21 CFR 177.1520 letters and GB 4806 documentation widely available for the Beijing plant's output. PetroChina Lanzhou 5502LW also has food-contact certification available though export documentation is less standardized. CTO-origin 5502 may carry higher trace impurities — verify food-contact certification specifically by producing plant. For dairy bottles, edible oil bottles, and direct food-contact applications, prefer Yanshan 5502AA.

How does HDPE 5502 compare to LG Chem ME9180 or SABIC HDPE M40060?

LG Chem ME9180 (Korea, density 0.955, MFI 0.7) is a higher-flow blow molding grade — NOT a direct 5502 substitute since the MFI is double. SABIC HDPE M40060 (Saudi, density 0.955, MFI 0.6) similarly runs higher MFI. For direct substitution of Korean Lotte/Hanwha or SABIC blow molding grades at MFI 0.35-0.45, Sinopec Yanshan 5502AA is the closest Chinese equivalent. For higher-MFI Korean/Saudi grades, Chinese 5602 or 5306 grades are closer matches than 5502.

What is the MFI consistency of Chinese 5502 between batches?

Within Sinopec Yanshan, batch-to-batch MFI variation is approximately ±10% (target 0.35 ±0.04). Across producers — Yanshan vs. Lanzhou vs. Hengli vs. CTO sources — the variation widens to ±15-20%. For high-speed blow molding lines that are MFI-sensitive (rapid bottle-blowing for soft drinks, water, or commodity packaging), specify MFI 0.32-0.40 tolerance on the PO and require COA before shipment. For lower-speed lines (industrial jerry cans, crate inserts), wider tolerance is acceptable.

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Related Reading

• HDPE 5000S: Sinopec, PetroChina, Hengli for Blow Molding
• HDPE 5000S vs. 5502 vs. 7260: Grade Selection Guide
• Chinese PP T30S: Sinopec, PetroChina, CTO for Woven Sack
• China Polymer Producers Guide

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This analysis covers the Chinese HDPE 5502 grade landscape as of Q2 2026. Producer capacities, pricing positions, and quality specifications can change. For current pricing on specific 5502 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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