What Sun Steel does

Sun Steel Co., Ltd. is a China-headquartered industrial steel supplier specializing in stainless steel, nickel alloy, and duplex stainless steel products for heavy-industrial end markets. Founded in 2000 and headquartered at 2001 Building 3, Binhang Road 88, Long Wan District, Wenzhou, Zhejiang Province, the company manufactures and distributes a catalog spanning seamless and welded pipes, pipe fittings, seamless tubes, flanges (weld neck, slip-on, blind, socket weld, lap joint, threaded), coil tubing, and plates and sheets. Products are offered in grades 304, 304L, 316, 316L, duplex 2205/2507, and nickel alloys 625, 825, and 400, and conform to ASTM, ASME, EN, JIS, GB, and ISO 9001 standards.

The company's primary customers operate in oil and gas, chemical and petrochemical processing, construction and infrastructure, automotive, medical equipment, energy, food processing, and marine sectors — use cases centered on durability under high pressure, high temperature, and corrosive conditions. Manufacturing processes described include hot rolling and cold rolling for sheet, coil, pipe, tube, fitting, and flange production.

Sun Steel operates a B2B direct-inquiry sales model with no public e-commerce or self-service channel; pricing is quote-based and undisclosed. International delivery is executed through a multi-carrier logistics network comprising DHL, UPS, TNT Express, and Sinotrans. The company also maintains a content-marketing presence via a corporate blog, email newsletter, and downloadable technical specification catalogs. Sun Steel is privately held with 51-100 employees, no disclosed parent company, no subsidiaries, and no external funding rounds on record.

Name

Sun Steel

Legal name

Sun Steel Co.,Ltd

Website

https://sunastm.com

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

51–100 employees

Short description

Sun Steel Co., Ltd. is a China-based (Wenzhou) manufacturer and distributor of stainless steel, nickel alloy, and duplex steel pipes, tubes, fittings, flanges, coil tubing, and plates serving oil and gas, chemical, construction, and other heavy-industrial buyers worldwide via direct inquiry.

Ownership category

akta.pro rank

Product category

Industrial Steel Products

NAICS

Iron and Steel Pipe and Tube Manufacturing from Purchased Steel (331210), Steel Product Manufacturing from Purchased Steel (3312)

SIC

Steel Pipe & Tubes (3317), Steel Works, Blast Furnaces & Rolling & Finishing Mills (3310)

akta.pro primary industry

Specialty & Alloy Steel (Stainless, Tool Steel, Electrical Steel, High-Strength/HSLA) (IMAKABAJ)

Keywords

• Stainless steel pipes
• Industrial steel supply
• Seamless tubes fittings
• Nickel alloy products
• Metal flanges plates

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Industrial Steel Products Sales: Sun Steel generates revenue through the sale of industrial steel products including seamless pipes and tubes, welded pipes, fittings, flanges, plates, sheets, and coil tubing. The company operates as a B2B supplier with contact-based inquiry and quotation process.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Sun Steel manufactures and globally supplies industrial stainless steel, nickel alloy, and duplex stainless steel products including seamless pipes, welded pipes, seamless tubes, pipe fittings, flanges, coil tubing, and structural plates and sheets. Products are produced via hot rolling and cold rolling and certified to ASTM, ASME, ISO 9001, EN, JIS, and GB standards for use in oil and gas, chemical and petrochemical, construction and infrastructure, and other industrial applications.

Product overview

Sun Steel is a global industrial steel supplier offering a comprehensive portfolio of stainless steel products including seamless pipes and tubes, welded pipes, pipe fittings, flanges, coil tubing, and plates and sheets. The company serves diverse industries including oil and gas, chemical processing, construction, and infrastructure. Their product range includes various stainless steel grades (304, 304L, 316, 316L), duplex stainless steels (2205, 2507), and nickel alloys (Alloy 625, Alloy 825, Alloy 400). Products are manufactured to meet international standards including ASTM, ASME, and ISO 9001.

Differentiator

Problem solved

Functional benefit

Products and services

• Seamless Pipes Nickel-including alloy seamless pipes certified to exceed industry standards, designed for high-pressure and high-corrosion industrial environments such as oil and gas and chemical processing.
• Welded Pipes Welded pipes produced in a variety of sizes, materials, and surface finishes to meet customer needs across diverse industries.
• Pipe Fittings Premium-quality pipe fittings designed for optimal use in piped construction while maintaining safety and reliability.
• Seamless Tubes Seamless tube stock covering needs of businesses in oil and gas, metal, marine, chemical, and entertainment industries.
• Flanges Metal flanges ensuring reliable equipment mounting and installation, available in Weld Neck, Slip-On, Blind, Socket Weld, Lap Joint, and Threaded types.
• Coil Tubing Coil tubing designed for oil, gas, and petrochemical industries, providing superior performance with durability, strength, and resistance to extreme conditions.
• Plates and Sheets Structural steel plates and sheets engineered for durability and customization, meeting needs of automotive, medical, and energy industries.

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core.

• DHLcoreOthersDHL provides international freight and logistics services for delivering Sun Steel products safely to customer destinations worldwide.
• United Parcel Service (UPS)coreOthersUPS provides international freight solutions for shipping Sun Steel products to customer locations.
• TNT ExpresscoreOthersTNT Express provides international freight services as part of Sun Steel's logistics network for product delivery.
• SinotranscoreOthersSinotrans is DHL's cooperative partner in China and provides logistics services for Sun Steel's domestic and international shipments.

Scale indicators1 record

Recent moves4 records

Expansion highlights5 records

Broad incumbents

• Sandvik (Materials Technology division): Global materials technology group with a major presence in stainless and alloy seamless tubes for demanding industrial applications. Overlaps with Sun Steel in alloy tube supply for oil & gas and chemical customers, at meaningfully greater scale and R&D depth.
• Vallourec: Global leader in premium seamless tubular solutions for the energy markets (oil & gas, power generation). Directly comparable to Sun Steel's seamless pipe and coil tubing business in oil & gas and petrochemical.
• Outokumpu: Largest stainless steel producer in Europe with extensive offerings in stainless coils, plates, and tubes. Comparable as a stainless upstream/downstream supplier serving overlapping end-uses (chemical, oil & gas, construction).
• Salzgitter / Mannesmann Stainless Tubes: European steel and tubes group supplying seamless stainless and high-nickel alloy tubes for industrial markets. Overlaps with Sun Steel's alloy tube, fitting, and flange offering for chemical and refinery customers.
• Schmolz + Bickenbach (Swiss Steel Group): European specialty steel producer supplying stainless long products, engineering steel, and tool steel into industrial markets. Adjacent comparable as a stainless and alloy steel producer with overlapping industrial customers.

Direct peers

• Tubacex: Spanish manufacturer of seamless stainless steel tubes and pipes serving oil & gas, chemical, and power markets. Highly comparable to Sun Steel in core product (seamless tubes), end-markets (energy, chemical), and focus on corrosion-resistant grades.
• Butting Group: German producer of longitudinally welded stainless steel pipes and special components for chemical, oil & gas, and shipbuilding. Comparable in stainless pipe/tube product range and certifications (ASTM/ASME/EN).
• TPCO (Tianjin Pipe Corporation): Major Chinese seamless pipe manufacturer exporting globally to oil & gas and industrial buyers. Closest geographic and product-comparable peer to Sun Steel, competing directly for export project orders in seamless pipe.
• Jiuli Hi-Tech: Chinese manufacturer of industrial stainless steel pipes, tubes, fittings, and flanges serving chemical, oil & gas, and desalination. Directly comparable product mix and China-based export model.

Regional players

• Ratnamani Metals & Tubes: India-based manufacturer of stainless steel pipes, tubes, and heat-exchanger tubes serving oil & gas, chemical, and power. Comparable product portfolio and end-market focus, primarily serving South Asian and Middle Eastern industrial customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sun Steel