Engineered to meet rigorous marine, offshore, and heavy equipment manufacturing standards across East Java.
Surabaya, as the capital of East Java and Indonesia's second-largest metropolis, serves as the primary maritime logisitics gateway and heavy industrial node for Eastern Indonesia. Home to vital commercial hubs like the Rungkut Industrial Estate (SIER), Karangpilang, and the maritime shipyards surrounding the Port of Tanjung Perak, the local industrial base demands highly specialized raw materials capable of withstanding aggressive tropical marine climates and heavy mechanical stress.
The accelerated growth in naval architecture, offshore engineering, food & beverage processing, and chemical refining across East Java has transformed the procurement landscape for stainless steel sheets (plate metal). Sourcing high-performance alloys such as ASTM A240 Grade 304, 316L, 321, and Duplex 2205/2507 requires direct manufacturer collaboration to ensure strict mechanical compliance, verified chemical composition, and seamless shipping logistics into Tanjung Perak Port.
Surabaya’s coastal location subjects industrial equipment to intense airborne salinity, elevated ambient humidity, and thermal cycling. Standard carbon steel or low-grade stainless alloys undergo rapid micro-pitting and stress corrosion cracking (SCC). Our certified stainless steel sheets deliver elevated Pitting Resistance Equivalent Numbers (PREN) specifically optimized for tropical marine exposure.
An engineering benchmark comparing mechanical resilience, chemical stability, and corrosion indices for industrial project planning.
| Stainless Steel Grade | EN / DIN Standard | Nominal Chemical Composition | PREN Rating | Primary Target Application in Surabaya |
|---|---|---|---|---|
| ASTM A240 Grade 304 | 1.4301 | 18% Cr / 8% Ni | ~ 19.0 | Commercial kitchens, SIER food processing plants, architectural cladding, storage tanks. |
| ASTM A240 Grade 316L | 1.4404 | 16.5% Cr / 10% Ni / 2.0% Mo | ~ 23.5 | Tanjung Perak maritime structures, coastal chemical storage, pharmaceutical vessels. |
| AISI 321 (Stabilized) | 1.4541 | 17% Cr / 9% Ni / Ti Stabilized | ~ 19.5 | High-temperature exhaust manifolds, thermal boilers, boiler chimneys, heat exchangers. |
| Duplex 2205 (UNS S31803) | 1.4462 | 22% Cr / 5% Ni / 3% Mo / 0.17% N | ~ 35.0 | Offshore oil & gas rigs, saltwater desalination units, high-pressure chemical pumps. |
| Super Duplex 2507 | 1.4410 | 25% Cr / 7% Ni / 4% Mo / 0.27% N | > 42.0 | Aggressive chemical processing, deep-sea marine hardware, phosphoric acid units. |
Thickness: 0.3mm - 3.0mm. Available in 2B, BA, No.4 Satin, and 8K Mirror finishes. Ideal for high-precision stamping, decorative elevators, and ultra-hygienic pharmaceutical grade surfaces in East Java industrial parks.
Thickness: 3.0mm - 100mm. No.1 pickled finish. Built to absorb high tensile shock loads, structural pressure, and heavy fabrication welding inside shipyards and heavy machinery plants.
Embossed diamond or teardrop surface patterns providing high anti-slip friction. Essential for maritime gangways, offshore deck floors, chemical plant catwalks, and public infrastructure staircases.
Established in 2014, OES Metal is a renowned professional steel manufacturing enterprise specialized in producing and exporting high-grade stainless steel products worldwide. Our state-of-the-art mill is located in Wuxi, Jiangsu—the center of China's stainless steel processing ecosystem—operating advanced multi-axis laser cutting, coil slitting, hydraulic bending, and automated polishing platforms every day.
Oes Steel has exported thousands of tons of high-quality STEEL to North America, South America, Gulf countries, Africa, CIS, and Southeast Asia. The products have been successfully integrated into critical engineering projects across more than 50 countries and regions, earning long-standing client trust through superior quality control and punctual logistics.
How direct mill sourcing from Wuxi to Tanjung Perak dramatically reduces procurement overhead while maintaining uncompromising quality control.
By bypassing middle-tier regional traders and stockholders, Surabaya project developers eliminate up to 15-25% in intermediary markups. Direct mill pricing guarantees transparent metric ton cost structures for high-volume orders.
Every stainless steel sheet shipment is accompanied by detailed Mill Test Certificates verifying exact Chemical Composition Analysis (spectrometer verified) and Mechanical Testing (Tensile, Yield, Elongation, Hardness).
Our dedicated export shipping department handles direct containerized and breakbulk shipping routes from Shanghai/Ningbo ports straight to Tanjung Perak (IDSUB), ensuring predictable transit times and minimal customs friction.
OES Metal ensures that you receive the highest quality products and services from start to finish, not only in production, but also in material, weight, size, and surface finish.
Discover our full lineup of industrial grade stainless steel products designed for seamless integration into marine, chemical, and architectural structures.
OES Metal’s 321 Stainless Steel Tubing is a premium solution for industries that demand durability, high-temperature resistance, and corrosion protection.
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Combines durability, aesthetics, and structural functionality, making it suitable for structural frameworks in East Java infrastructure.
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Supplies bright annealed stainless steel tubes with a flawless mirror-like finish, perfect for high-purity fluid transmission.
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Designed for high-pressure and corrosive chemical environments. Manufactured to meet rigorous ASTM quality benchmarks.
Explore DetailsTailored steel sheet processing for regional manufacturing ecosystems.
Marine shipbuilders rely on our 316L and Duplex 2205 sheets for hull cladding, rudder assemblies, offshore platform decks, and sea water piping flanges where resistance to chloride-induced stress corrosion cracking is non-negotiable.
Surabaya’s massive food processing hubs require ultra-clean ASTM A240 Grade 304 2B/BA finish plates for mixing vats, grain silos, conveyor belts, and sterilizers. Meets international food-contact safety standards.
The neighboring Gresik industrial corridor houses heavy petrochemical plants. Our 321 heat-stabilized and 2507 super duplex plates resist aggressive acidic solutions, thermal cracking, and toxic vapor pressure.
Precision Manufacturing • Pursuing Excellence in Steel Metallurgy
Are you looking for a durable, corrosion-resistant stainless steel sheet that won’t fail in demanding industrial environments?
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Ever wonder why some stainless steel lasts forever while others rust in humid marine climates? The secret lies in Mo composition...
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Among various types of stainless steel, 309 stainless steel and 304 stainless steel are two prominent austenitic grades for elevated temperature applications.
Read Technical Guide →Explore our secondary stock items available for immediate containerized dispatch to Surabaya.
Clear answers regarding material selection, shipping lead times, quality assurance, and customs import requirements.
Oes Steel
