รายงานเหล็กจีนรายเดือน — สิงหาคม 2026: แผ่นเหล็กกลางนำตลาด, HRC ถูกกดดัน
China steel monthly analysis: medium plate surges to $616/t FOB, HRC compresses $28/t vs prior 30-day mean. Strategic procurement guidance for September.
Strategic Executive Summary
China's August 2026 steel market closed with a clear bifurcation between flat-product sub-segments. Medium plate (8mm, Q235B) reached the month's strongest spot level at USD 616.11/t FOB Shanghai (▲+0.99% WoW), while hot-rolled coil (2.75mm, Q235B) traded at USD 549.31/t (▲+0.84% WoW) — still below its prior-month average of USD 523/t by only USD 3/t. The DSP Composite Index, as of the last confirmed reading on 2026-08-14, stood at 961.05 (▲+0.22% vs prior session), and should be referenced with the caveat that data has not refreshed since that date.
The 30-day moving-average framework reveals the operative trend. Medium plate's current 30-day mean of USD 3,936/t sits USD 26/t above its prior 30-day mean of USD 3,910/t, confirming sustained upward momentum. Cold-rolled coil, by contrast, registered a current 30-day mean of USD 3,906/t, marginally below its prior 30-day mean of USD 3,912/t (▼USD 6/t), indicating near-flat positioning with a slight downward drift. Hot-rolled coil showed the most compression: current 30-day mean of USD 3,523/t versus a prior 30-day mean of USD 3,551/t (▼USD 28/t).
From a 60-day trajectory perspective, the market entered September with three actionable signals: (1) medium plate demand fundamentals remain intact — the 60-day high of USD 594/t on 2026-08-18 held as support with the current price trading USD 22/t above the 60-day average; (2) HRC and rebar exhibit mild downside compression but remain within a narrow band around their respective 30-day means; (3) wire rod and spiral rebar — at USD 576.03/t and USD 607.21/t respectively — represent the premium tier within the building-steel segment and should be monitored for spread dynamics.
The key procurement question for September centers on whether HRC's compression of USD 28/t off its prior 30-day mean signals a buying opportunity or a continuation of weakness. Based on the data, we recommend a calibrated approach outlined below.
90-Day Price & Cost Floor Trajectory
### 30-Day Retrospective Matrix
| Product Line | Previous 30-Day Mean (USD/t) | Current 30-Day Mean (USD/t) | 60-Day Vector & Forecast |
|---|---|---|---|
| Medium Plate (8mm Q235B) | 3,910 | 3,936 | ↗ +26/t; bullish — policy and infrastructure demand supporting floor |
| Cold Rolled Coil (1.0mm ST12) | 3,912 | 3,906 | ➔ Flat to slight ▼ — auto/appliance demand stable, no directional catalyst |
| Hot Rolled Coil (2.75mm Q235B) | 3,551 | 3,523 | ↘ -28/t; cautious — oversupply pressure persisting into Sep |
| Rebar (φ10 HRB400) | 3,631 | 3,552 | ↘ -79/t; cautious — weakest 30-day compression across all categories |
| Wire Rod (φ6 Q235) | 3,721 | 3,681 | ↘ -40/t; neutral — tight range, limited upside catalyst |
| I-Beam (12# Q235) | 3,659 | 3,637 | ➔ Flat — construction demand subdued but stable |
| Channel Steel (10# Q235) | 3,534 | 3,508 | ➔ Flat — profile segment tracking rebar closely |
| Angle Steel (50×50×5 Q235) | 3,514 | 3,488 | ➔ Flat — minimal deviation from prior mean |
| Spiral Rebar (φ6 HRB400) | — | — | ➔ N/A — no 30-day mean available for this sub-grade |
60-Day Spot Trend (Aug 15–31): • Rebar: USD 545 → USD 527 (net ▼USD 18/t), intraday low USD 503 on 08-18 • HRC: USD 514 → USD 526 (net ▲USD 12/t), consolidated in tight USD 512–524 range • Medium Plate: USD 569 → USD 558 (net ▼USD 11/t), peaked USD 594 on 08-18 before settling • CRC: USD 579 → USD 592 (net ▲USD 13/t), volatile with a spike to USD 653 on 08-28
Cost & Freight Matrix
| Product Line | Price Vector (USD/t FOB SH) | Freight Vector (Shanghai → Global) | Sourcing Action |
|---|---|---|---|
| Hot Rolled Coil 2.75mm | ▲$549.31 (+0.84% WoW) | Asia internal stable; Europe/Natl range-bound | Accumulate on dips — compression offers entry window |
| Medium Plate 8mm | ▲$616.11 (+0.99% WoW) | Same baseline; Middle East softening slightly | Hold inventory — premium segment justified by demand |
| Cold Rolled Coil 1.0mm | ▲$604.24 (+0.25% WoW) | Containerized rates stable | Wait for pullback — CRC volatile, avoid chasing peak |
| Rebar φ10 HRB400 | ▲$553.76 (+0.83% WoW) | Bulk vessel rates unchanged | JIT procurement — 30-day mean compression suggests further downside |
Global Sourcing Risk Matrix
### (1) Logistics Headwinds
Ocean freight from Shanghai remains range-bound across all major lanes. Asia-internal containerized rates are stable, providing no arbitrage opportunity for near-shore buyers. Europe and North Atlantic lanes show no directional pressure. The Middle East lane exhibits slight softening, which could marginally benefit buyers targeting the GCC corridor.
Recommendation: Buyers with flexible cargo windows should evaluate Middle East routes for potential freight savings. Use the Landed Cost Calculator to model total landed cost under current freight baselines before committing to booking.
### (2) Regulatory & Trade Friction
• Anti-dumping exposure: Medium plate continues to face heightened scrutiny in EU and US markets. Buyers sourcing MHP for those destinations should factor potential duty overlays of 15–35% into landed-cost models. • Currency risk: The USD/CNY rate at 6.7358 (2026-08-31) is near the lower end of its 6-month range. A strengthening USD would materially reduce FOB-equivalent costs for dollar-denominated contracts. Hedge 50% of September volume if your APAC procurement cycle extends beyond Q3. • Domestic supply-side signal: China's August steel mill production data indicates continued high utilization rates, reinforcing the HRC compression trend. No immediate supply-constraint catalyst is visible for the near term.
Recommendation: For EU-bound medium plate orders, execute forward FX hedges and validate anti-dumping duty applicability via the RFQ Gateway before finalizing contracts.
Cross-Border Grade Equivalence
| Chinese Grade (GB/T) | ASTM Equivalent | EN Equivalent | Notes |
|---|---|---|---|
| Q235B | ASTM A36 / A283-C | EN S235JR | Most common HRC/MHP/structural grade; broad equivalence |
| SS400 | ASTM A36 | EN S275JR | Japanese counterpart; used in HRC and plate specs |
| HRB400 | ASTM A706 (Grade 60) | EN 10080 B400B | Rebar / wire reinforcement; mechanical properties aligned |
| Q235 (general) | ASTM A572 Gr.50 | EN S355JR | Higher-strength alternative for structural applications |
| ST12 / DC01 | ASTM A1008 CD | EN 10130 DC01 | Cold-rolled sheet — deep-draw grade, automotive applicable |
*Source: DSP Composite Index cross-reference, for procurement-grade verification only. Always confirm mill test reports against project specifications.*
Strategic Procurement Mandate
### Flat Products (HRC / CRC / Medium Plate)
• Hot Rolled Coil (2.75mm, Q235B): Accumulate on Dips. The 30-day mean compression of ▼USD 28/t vs. the prior period signals weakening spot demand. Current FOB of USD 549.31/t represents the lower bound of the August range. Target incremental purchases at any move below USD 540/t. Use Landed Cost Calculator to lock in September bookings at current freight baselines.
• Medium Plate (8mm, Q235B): Hold Inventory / Strategic Reserve. At USD 616.11/t, medium plate is the strongest flat-product sub-segment. The 30-day mean expansion of ▲USD 26/t confirms demand support. Do not reduce stock below 45-day coverage. Any pullback to USD 590/t or below should trigger immediate replenishment orders.
• Cold Rolled Coil (1.0mm, ST12/DC01): Wait for Pullback. CRC is exhibiting intraday volatility (USD 572–653 range over 60 days) without a clear directional trend. The current 30-day mean of USD 3,906/t is flat vs. prior. Avoid over-committing at current levels; wait for a test of USD 580/t or below before increasing positions.
### Tubular Products (Seamless / Welded Pipes)
Data for seamless and welded pipe grades is not available in the current DSP reporting window. Buyers in this segment should request a tailored quote via RFQ Gateway and reference the Q235B structural-grade benchmark as a proxy for pricing direction.
### Long Products & Industrial Steel (Rebar / Wire Rod / Sections)
• Rebar (φ10, HRB400): JIT Procurement. The 30-day mean compression of ▼USD 79/t is the widest across all tracked categories. Current FOB of USD 553.76/t reflects ongoing downward pressure. Execute just-in-time orders; avoid building buffer stock above 30 days. Monitor for a stabilisation signal if the 30-day mean narrows to within ±USD 10/t of the prior period.
• Wire Rod (φ6, Q235) & Spiral Rebar (φ6, HRB400): Hedge & Monitor. Wire rod at USD 576.03/t and spiral rebar at USD 607.21/t trade at a premium to standard rebar, reflecting narrower gauge and processing costs. The 30-day mean compression of ▼USD 40/t for wire rod suggests mild weakness. Maintain 30–45 day inventory and hedge 25% of October exposure if the USD/CNY rate moves below 6.70.
• Structural Sections (I-Beam 12#, Channel 10#, Angle 50×50×5): Wait for Policy Clarity. All three section grades show flat 30-day means (▼USD 22/t, ▼USD 26/t, ▼USD 26/t respectively). Construction-sector demand remains subdued. Defer large commitments until Q4 infrastructure spending signals emerge. Use Historical DSP Index to track mean-reversion patterns before placing orders.
核心价格（美元/吨）
| 品种 | 现货 | FOB | 越南 | 菲律宾 | 泰国 | 印尼 | 马来 |
|---|---|---|---|---|---|---|---|
| High Speed Wire Rod | $564 ¥3800 | $576.03 | |||||
| Rebar | $542 ¥3650 | $553.76 | $653.6 | $697.98 | $673.41 | $721.52 | $613.76 |
| Spiral Rebar | $595 ¥4010 | $607.21 | |||||
| Hot Rolled Coil | $537 ¥3620 | $549.31 | $772.51 | $651.57 | $671.1 | $780.04 | $645.3 |
| Cold Rolled Coil | $592 ¥3990 | $604.24 | $725.46 | $726.4 | $749.67 | $803.09 | $715.65 |
| Medium Plate | $604 ¥4070 | $616.11 | $698.9 | $688.15 | $709.5 | $794.79 | $677.99 |
| Angle Steel | $527 ¥3550 | $538.91 | |||||
| Channel Steel | $530 ¥3570 | $541.88 |