About Us

Qingdao Sanhe Steel Co., Ltd.

China Steel Plate, Medium & Heavy Plate, Checkered Plate Manufacturer

Qingdao Sanhe Steel Co., Ltd. was established in 2008. Adhering to the business philosophy of "honesty as the foundation, quality as the base, and service as the top priority", the company has steadily grown into a well-known steel trading service provider in the region amid the industry trends.

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About Us

Stainless steel cold rolled sheet

High precision and excellent surface quality: The cold rolling process ensures high dimensional accuracy and excellent surface quality of the steel sheet, for applications where high precision is required.

Excellent Corrosion Resistance

Stainless steel cold rolled plate is rich in chromium and other corrosion resistant elements, can maintain stable chemical properties under harsh environment, is not easy to be corroded and oxidized.

Good Mechanical Properties

Has high hardness and strength, can withstand greater mechanical stress without deformation or fracture, is suitable for the manufacture of various structural parts and tools.

Wide Application Fields

Is widely used in automotive, aerospace, precision instrument, medical equipment, architectural decoration and other fields, highlights its wide application value.

We Are Loyal To Customer Satisfaction.

Frequently Asked Questions

FAQ

1. Are you a factory or a trading company?

Qingdao Sanhe Steel Co., Ltd. is a bona fide manufacturing facility. We own standardized steel plate processing workshops equipped with a full suite of leveling, slitting, cutting, and precision processing machinery. Furthermore, we maintain long-term strategic partnerships with leading steel mills—such as Baowu and HBIS—giving us robust in-house processing and customization capabilities. This allows us to simultaneously meet the diverse needs of large-scale engineering procurement, international trade orders, and precision processing customization projects.

2. What steel products does your company primarily handle?

Our company specializes in a comprehensive range of steel products, including hot-rolled plates, cold-rolled plates, galvanized plates, color-coated plates, medium-to-heavy plates, checkered plates, stainless steel plates, structural profiles, pipes and tubes, and specialized high-strength steels. We also provide one-stop deep-processing services—such as leveling, slitting, bending, punching, and custom-length cutting—covering the steel requirements of virtually every industry, including construction, machinery, automotive components, home appliances, energy, and transportation.

3. Is your product quality stable? Can you provide material certificates?

All our steel materials are sourced from large, reputable domestic steel mills and fully comply with Chinese, European, American, and Japanese standards. We maintain rigorous internal quality control standards, with many performance indicators exceeding general national benchmarks. We provide material certificates, certificates of conformity, inspection reports, and original mill warranties free of charge. We also welcome third-party inspections to ensure full compliance with the acceptance standards required for international engineering projects and export trade.

4. Do you support custom processing and non-standard dimensions?

We offer comprehensive, personalized customization services across our entire product range. Based on client drawings and specifications, we can perform deep processing operations such as custom-length cutting (non-standard dimensions), irregular shape cutting, bending, punching, surface treatment, and customization for Z-direction properties or low-temperature impact resistance. Our automated factory equipment features high precision and tight tolerance control, making our products ideally suited for use in precision machinery, export equipment, and overseas engineering projects.

5. What are your lead times and supply reliability?

We maintain a substantial inventory of stock materials; standard specifications can typically be shipped within 7–15 days, while custom processing orders are delivered within 15–35 days, depending on the complexity of the process. Leveraging our stable, long-standing relationships with steel mills, we ensure an abundant and uninterrupted supply of materials. We strictly eliminate defective goods and re-rolled materials, maintaining a customer retention rate of over 90% for many years, thereby ensuring stable and reliable delivery performance.

6. Why Choose Us as Your Long-Term International Steel Supplier?

Qingdao Sanhe Steel Co., Ltd. possesses five key advantages: direct access to source materials, ownership of physical manufacturing facilities, precision processing capabilities, rigorous quality control, and a mature international trade delivery system. Unlike standard trading companies, we provide comprehensive, end-to-end services—spanning material selection, processing, quality inspection, logistics, documentation, and after-sales support. Our products comply with global engineering standards, offering exceptional value and consistent quality. We are the preferred long-term manufacturing partner for overseas engineering projects, international wholesalers, and manufacturing enterprises worldwide.

Featured Products

Q235 Steel Plate

If you are looking for a reliable manufacturer of Q235 Steel Plates, please choose Sanhe Steel. As a leading supplier in the industry, Sanhe Steel always has tens of thousands of tons of stock available, ensuring efficient delivery. The Q235 steel plate material is a common low-carbon steel. This material, due to its excellent comprehensive performance, has become the preferred material for general welded structural components and load-bearing components.

Carbon Steel Plate

Sanhe Steel is a professional wholesaler that combines steel trading and plate processing. It specializes in the sale of Carbon Steel Plates, Medium and Thick Plates, Pattern Plates, High-Strength Steel, and Openings Plates. As a leading physical manufacturer in the industry, we deeply understand the strict requirements for safety performance in industrial and commercial environments.

Mild Steel Plate

Sanhe Steel is a professional Mild Steel Plate Manufacturer and Supplier in China that integrates steel trading and processing. As a leading physical factory in the industry, we focus on operating various types of steel products such as low-carbon steel plates, and they are suitable for the needs of multiple industries.

S355 Structural Steel Plate

As the professional manufacture, Sanhe Steel would like to provide you S355 Structural Steel Plate. And Sanhe Steel will offer you the best after-sale service and timely delivery. Sanhe Steel is a trustworthy professional S355 steel plate manufacturer, providing high-quality EN 10025-2 standard S355 steel plate with complete specifications, stable mechanical performance and reliable batch consistency. Our S355 structural steel plate covers S355JR, S355JO, S355J2 grades, supports custom processing and export packaging, widely supplied for global construction, machinery and offshore engineering projects.

SS400 Steel Plate

Steel Plate supplied by Sanhe Steel, a professional SS400 steel plate manufacturer following JIS G3101 standard, stable mechanical performance, full size stock, custom cutting & export packaging for global structural engineering buyers.

Steel Plate 6mm

Sanhe Steel is a reliable manufacturer and supplier of 6mm steel plates, providing spot supply of steel plates 6mm to domestic and foreign customers, undertaking large-scale industrial procurement, and ensuring stable and reliable supply through original factory quality inspection.

Steel Plate ASTM A36

Sanhe Steel is a professional Steel Plate ASTM A36 manufacturers and suppliers in China, you can rest assured to wholesale and customized Steel Plate from our factory and we will offer you the best after-sale service and timely delivery.

Galvanized Steel Profiles

Sanhe Steel is a professional manufacturer and supplier of Galvanized Steel Profiles in China. Galvanized pipes are welded steel pipes made from hot-rolled or cold-rolled steel strips or steel pipes, which are treated with galvanization to form a zinc protective layer. Their main functions are to prevent rust, resist corrosion, and extend service life. They are widely used in water supply and drainage, gas, fire protection, structures, wiring, and other engineering projects.

Cold Rolled Steel Sheet

Sanhe Steel is a professional Manufacturer and Supplier of Cold Rolled Steel Sheets in China. As a leading physical factory in the industry, we strictly follow standard production processes and supply a wide range of specifications and types of cold-rolled steel sheets. With excellent product performance, we precisely meet the needs of various fields such as automobiles and household appliances, and have gained market recognition through reliable quality.

A36 Steel Plate

As the professional manufacture, Sanhe Steel would like to provide you A36 Steel Plate. And Sanhe Steel will offer you the best after-sale service and timely delivery. If you have any questions, please feel free to come and consult us or contact us.

Shipbuilding Steel Plate

Sanhe Steel is one of the famous China Shipbuilding Steel Plate manufacturers and suppliers. Our factory specializes in manufacturing of Steel Plate. Welcome to buy Shipbuilding Steel Plate from Sanhe Steel. Every request from customers is being replied within 24 hours.

Aluminum Checkered Plate

Sanhe Steel is a professional Manufacturer and Supplier of Aluminum Checkered Plates in China. As a leading physical factory in the industry, we focus on operating various patterned aluminum plates. Relying on high-quality raw materials and meticulous processing techniques, we supply a wide range of products in multiple specifications and categories, meeting the needs of various fields such as construction, transportation, and industry.

Email Us

Zoey@sanhesteels.com

Call Us

+86-15865577002

Address

No. 1188, Lanzhou West Road, Jiaozhou City, Shandong Province, China

Send Inquiry

Applications

OUR Applications

Construction Engineering Field

Real estate residential buildings, municipal infrastructure, bridges and tunnels, rail transit, steel structure factories, prefabricated buildings, all scenarios including main structures, supports, and accessories have steel demand that this product can meet.

Industrial Manufacturing Sector

General machinery, construction machinery, automotive parts, household appliances and furniture, sheet metal processing, meet the requirements for precision steel used in component manufacturing, equipment frames, and shell forming, etc.

Energy and Transportation Sectors

Oil and gas pipelines, power towers, port terminals, container production, shipbuilding, rail transit equipment - all these require special steel with properties such as corrosion resistance, high strength, and wear resistance to meet the demands.

Public Services and Infrastructure Sector

Municipal water supply pipelines, sanitation facilities, storage shelves, decoration projects, hardware accessories, covering both conventional and customized lightweight and general-purpose steel applications.

News

Customer Service Section

2026-03-12

From a regional powerhouse to an international business card: Sanhe Iron and Steel Company's global supply chain layout for 2026 takes another step forward

In 2026, the global steel trade pattern is undergoing a profound reshaping. In the complex international environment, Sanhe Steel Company has not backed down, but has accelerated the pace of building its global brand. Recently, Sanhe has officially opened its first overseas warehousing and distribution center in Southeast Asia, marking the beginning of its "24-hour delivery circle" targeting overseas markets.

2026-03-12

Rejecting simple 'buying and selling relationships': How can Sanhe Steel Company deeply embed itself in the high-end equipment manufacturing supply chain?

In the current industrial ecosystem, the boundary between steel companies and downstream manufacturing enterprises is becoming blurred. The EVI (Early Supplier Intervention) model vigorously promoted by Sanhe Steel Company in recent years is rewriting traditional procurement logic. When a well-known heavy machinery manufacturer was designing a new generation of cranes, the technical team of Sanhe Steel Company had already settled in its research and development center, providing professional advice from the material selection stage.

2026-03-12

Data driven Hard Power: Exploring Sanhe Steel Company's "Steel Brain" and Digitized Production Line

Entering the production scheduling center of Sanhe Steel Company, what you see is not workers covered in oil stains, but a real-time flashing data screen. In 2026, digitization will no longer be a "face saving project" for steel companies, but an "inner project" that concerns survival. Sanhe Iron and Steel Company has successfully achieved a fully digitized closed-loop system from ore procurement, blast furnace smelting to finished product warehousing through its self-developed "Smart Steel Integration System".

2026-03-12

The "Green Steel" Competition under the Background of Carbon Neutrality: How Can Sanhe Steel Company Win the 2026 Carbon Tariff?

With the comprehensive implementation of the global "carbon border adjustment mechanism", the export threshold of the steel industry is undergoing fundamental changes. In 2026, if steel companies cannot provide detailed carbon footprint reports, they will lose their eligibility for international procurement. In this context, Sanhe Steel Company has taken the lead in completing the "green surgery" from energy structure to process flow.

2026-03-12

Breaking the trap of "internal competition": Sanhe Steel Company reshapes the value chain with high-end specialty steel

In 2026, when the steel industry enters the deep-water zone of "stock competition", a simple price war will no longer provide a moat for enterprises. Faced with the slowing demand for ordinary building materials in the market, Sanhe Steel Company has chosen a difficult but correct path: to comprehensively transform into the high-end special steel field.

2026-02-04

The application of steel plates in the fields of energy and transportation

2026-02-04

ZhiChuang sets a new benchmark for hot-rolled steel, empowering high-end manufacturing

2026-02-04

Deeply focus on the field of anti-slip technology, and empower the upgrade of safety

2026-02-04

Leads The New Trend In The Industry And Continues To Innovate To Promote Industry Development

2026-06-09

Global Infrastructure Growth Boosts Stable Demand for S355 Steel Plate

With the continuous recovery of global infrastructure construction, EN-standard high-strength structural steel has maintained steady market demand in 2026. Among them, S355 steel plate has become the mainstream choice for European, Middle Eastern and African engineering projects due to its high strength, good toughness and excellent welding performance.

2026-06-09

Sanhe Steel Team Building Activity Promotes Cross-Department Cooperation

To ease work pressure and improve team communication, Sanhe Steel recently organized an offline team building activity for all employees, covering production workshop, quality inspection, foreign trade sales, warehouse logistics and after-sales teams.

2026-06-09

Sanhe Steel Delivered Batch S355 Steel Plates for European Bridge Project

Recently, Sanhe Steel successfully completed the packaging and shipment of a large batch ofS355 steel plates for an ongoing infrastructure project in Europe. This batch of goods includes multiple full container loads, all customized based on the client’s engineering requirements.