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Help CenterH Section Steel & Steel H Beam，Q235B、Q355B、Q390、Q460、Q235NH、Q355NH、AH36、DH36
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1. Product Overview
1.1 Product Name
Common Name: H Section Steel, Wide Flange Steel Beam, H Beam
English Name: H Section Steel / H Beam / Wide Flange Beam
HS Code: 7216102000 (Hot-rolled H Section Steel); 7216319000 (Welded H Section Steel)
1.2 Section Structure Description
The section consists of web (section height H) and upper and lower flanges (flange width B). The inner and outer surfaces of the flanges are completely parallel with right-angle design and no gradient. Compared with ordinary I-beams, it features uniform stress distribution and stable structure, serving as a cost-effective load-bearing steel material widely used in global infrastructure and steel structure projects.
Universal Specification Marking Format: H×B×t₁×t₂
H = Section Height, B = Flange Width, t₁ = Web Thickness, t₂ = Flange Thickness
Example: HN400×200×8×13
2. Product Classification
2.1 Classification by Section Type (National Standard)
HW Wide Flange H Section Steel (Column Use): Nearly square section with excellent compression resistance, torsion resistance and lateral stiffness. Mainly used for steel structure columns, pile foundations and heavy equipment foundations.
HM Medium Flange H Section Steel (Dual-Purpose for Beam & Column): Balanced mechanical properties, suitable for multi-storey building frames, bridge supports and warehousing structures.
HN Narrow Flange H Section Steel (Beam Use / Core Export Product): Outstanding bending resistance and light self-weight, widely applied in roof beams, floor beams, platform structures and photovoltaic projects.
HT Thin-Walled H Section Steel: Lightweight thin-section profile, ideal for light steel factories, prefab houses and small supports.
HP Pile H Section Steel: Reinforced high-strength design with superior impact and extrusion resistance, used for foundation pit support, wharf pile foundations and tunnel engineering.
2.2 Classification by Production Process
Hot-Rolled H Section Steel (Mainstream Export Product): Integrally formed by universal rolling mill with high dimensional accuracy, no welding stress and stable performance. It enjoys high global recognition and is suitable for standardized bulk export orders.
Welded H Section Steel (WH Custom Non-Standard): Fabricated by plate cutting and automatic submerged arc welding. Customizable for super-large and special non-standard sections to meet special drawing requirements and large-scale overseas project demands. UT flaw detection reports are available upon request.
3. Export-Grade Material Grades
3.1 Chinese National Standard Grades (With Original Factory Quality Certificates)
Q235B, Q355B (General conventional use); Q235C/D, Q355C/D/E (Specialized for low-temperature and cold regions); Q355NH (Weathering corrosion-resistant grade for coastal and chemical environments)
3.2 International Equivalent Grades
European Standard: S235JR, S355JR; American Standard: A36, A992, Gr50; Japanese Standard: SS400, SM490. Fully compatible with engineering drawings of various countries.
4. Implementation Standards & Export Certifications
Chinese Standards: GB/T 11263-2024, GB/T 33814-2017
International Standards: ASTM A6, EN10034, JIS G3192, ISO657
Third-party inspection supported: SGS, BV, ABS, DNV. Complete customs clearance and acceptance certificates can be provided.
5. Core Export Advantages
1. Material & Shipping Cost Saving: 10%–40% lighter than I-beams under the same load capacity, effectively reducing container freight and comprehensive procurement costs.
2. High Overseas Construction Efficiency: Parallel right-angle flanges enable convenient bolt connection and welding assembly without extra gaskets, shortening on-site construction period by over 25% and saving overseas labor costs.
3. High Precision & Strong Compatibility: Tolerances comply with multiple international standards with no distortion, adapting to global prefabricated steel structure projects.
4. One-Stop Deep Processing Export: Custom services including cutting, drilling, beveling, shot blasting, painting and hot-dip galvanizing are available for direct on-site installation after delivery.
5. Eco-Friendly & Recyclable: Steel recycling rate exceeds 95%, meeting green building standards in Europe, America, Southeast Asia and other regions.
6. Surface Treatment Solutions
1. Hot-rolled Black Finish: Cost-effective option for indoor dry engineering projects;
2. Sa2.5 Grade Shot Blasting: Suitable for secondary on-site painting and outdoor bridge projects;
3. Anti-Corrosion Coating: Zinc-rich epoxy primer + topcoat for inland open-air structures;
4. Hot-Dip Galvanizing: Zinc coating 60–120μm, durable for over 20 years in coastal high salt-fog and chemical corrosive environments;
5. Fluorocarbon Spraying: Applied for high-end curtain walls and landscape steel structures with superior weather resistance and color retention.
7. Specifications, Delivery Sizes & Tolerances
Conventional Hot-Rolled Specifications: Full range of 100mm–900mm available
Custom Welded Specifications: Super-large non-standard sections of 500mm–1800mm customizable
Standard Fixed Lengths: 6m, 9m, 12m (optimal sizes for container shipping)
Custom Lengths: 3–15m arbitrary cutting to match customer drawings with zero loss
Weight Tolerance: ±5%, compliant with global import and export measurement standards
8. Global Application Fields
Overseas industrial factories, warehousing and logistics parks, high-rise steel frame buildings, municipal bridge engineering, foundation pit support pile foundations, new energy photovoltaic/wind power supports, port heavy equipment, light steel villas, outdoor landscape steel structures, etc.
9. Export Packaging, Marking & Customs Clearance Documents
Export Packaging: Steel strip binding + corner protection, reinforced support for ultra-long profiles, waterproof film wrapping for galvanized products to prevent moisture and deformation during sea transportation.
Product Marking: Bilingual Chinese-English spraying of model, material grade, heat batch number, weight and factory logo for easy checking.
Complete Customs Clearance Documents: Original factory quality certificate, inspection report, packing list, commercial invoice, certificate of origin (CO/FORM A/FORM E, etc.), SGS third-party report.
Trade Terms: Full range of trade terms supported: EXW, FOB, CFR, CIF, DDU, DDP.
10. Factory Quality Inspection Standards
Strict inspections including appearance check, dimensional re-measurement, mechanical property test and impact test (for low-temperature grades) are implemented. Welded H section steel undergoes additional UT ultrasonic non-destructive testing. Complete qualification certificates are provided for each batch to support customs re-inspection in importing countries.
11. Delivery Cycle
1. Conventional Hot-Rolled Stock Orders (Black Finish, No Deep Processing)
Lead time:5–7 working days for container loading. Urgent shipment within 3–5 working days available for in-stock goods to meet urgent overseas project replenishment.
2. Conventional Custom Processing Orders (Cutting, Drilling, Simple Beveling)
Lead time: 7–15 working days, including precision processing, quality inspection and packaging for direct on-site installation.
3. Anti-Corrosion Deep Processing Orders (Painting, Shot Blasting, Hot-Dip Galvanizing)
Lead time: 15–20 working days, covering the whole process of surface treatment, curing, re-inspection and export packaging.
4. Custom Non-Standard Welded H Section Steel Orders (Large Section, Special-Shaped Customization, UT Testing)
Lead time: 20–30 working days, adjustable according to drawing complexity and order tonnage; mass production scheduling supported.
5. Large-Volume Long-Term Cooperative Orders (1000-Ton Bulk Procurement)
Priority production scheduling and capacity reservation available with stable monthly batch delivery to guarantee the construction schedule of large overseas projects.
6. Urgent Rush Orders
Priority production arrangement supported. Custom urgent lead time available according to customer shipping schedule and project nodes to maximize matching overseas logistics timeliness.
12. Product Advantage Comparison
H section steel features parallel equal-thickness flanges, balanced bidirectional stress, light self-weight and convenient construction, applicable for both beam and column scenarios. It greatly reduces material, labor and shipping costs for overseas projects, serving as the mainstream preferred steel material for export steel structures and fully superior to traditional I-beams.
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