NACE MR0175 Standards Steel Coil Manufacturers Sulfuric Acid Resistance ​Material UNS N08904

Product Overview​​
Engineered for extreme corrosive environments, our 904L stainless steel coil delivers unmatched resistance to sulfuric acid, phosphoric acid, and chloride-induced stress corrosion. Certified for sour gas (H₂S) applications per NACE MR0175, this high-performance material is ideal for demanding chemical, oil & gas, and marine applications.

​​Material Specifications​​

​​Elemental Composition​​

• Cr: 19-23%
• Ni: 23-28%
• Mo: 4-5%
• Cu: 1-2%
• Mn: ≤2%
• C: ≤0.02%
• Fe: Balance

​​Mechanical Properties​​

• Tensile Strength: ≥490 MPa
• Yield Strength: ≥220 MPa
• Elongation: ≥35%

​​Certifications & Compliance​​

• NACE MR0175 (Sour Service)
• ASTM A240
• EN 10088-3
• PED 2014/68/EU
• TÜV SÜD Certified

​​Key Advantages​​

1. ​​Superior Corrosion Resistance​​

   • Outstanding performance in >95% sulfuric acid
   • Excellent seawater resistance
   • Chloride stress corrosion cracking resistance

2. ​​Industry-Specific Benefits​​

   • 25% cost advantage vs. European suppliers
   • Certified for H₂S environments (NACE MR0175)
   • Maintains integrity from -50°C to 250°C

3. ​​Quality Assurance​​

   • 100% eddy current and ultrasonic testing
   • ISO 14064-certified low-carbon production
   • 70% recycled content

4. ​​Customization & Service​​

   • Precision slitting and edge conditioning
   • Electrolytic polishing available
   • Free corrosion resistance reports
   • Welding procedure specifications (WPS)

​​Stock & Lead Times​​

• Ready stock for 1-4mm thicknesses
• 15-day lead time for custom orders

​​Typical Applications​​

• Sulfuric acid reactors
• Offshore oil rig pipelines
• Seawater desalination plants
• Chemical processing equipment
• Marine components

​​Technical Support​​
Our engineering team provides:

• Material selection guidance
• Corrosion resistance data
• Fabrication recommendations
• Welding procedure support
• 

​​Frequently Asked Questions (FAQ)​​

​​Q1: What type of company are you?​​
A: We are a ​​direct manufacturer​​ with ​​12 years of production and sales experience​​.

​​Q2: Where is your production facility located?​​
A: Our manufacturing plant is situated in ​​Wuxi City, Jiangsu Province, China​​ - a major industrial hub for stainless steel production.

​​Q3: What are your payment and shipping terms?​​
​​Payment Methods:​​
✓ T/T (Telegraphic Transfer)
✓ L/C (Letter of Credit)
✓ Credit Card
✓ Western Union
✓ Cash

​​Accepted Currencies:​​
✓ USD
✓ RMB (CNY)

​​Delivery Terms:​​
✓ FOB
✓ CFR
✓ CIF
✓ EXW
✓ Express Shipping

JIANGSU CHINA STEEL UNION INDUSTRIAL CO.,LTD.

Specializing in premium stainless steel products (sheets, pipes, high-pressure tubes, bars), aluminum/steel coils, galvanized steel, and copper alloys. Equipped with advanced cold-rolling mills, CNC machining centers, and plasma cutting systems, we supply precision-engineered materials worldwide. Partnered with automotive giants in Germany, construction firms in the Middle East, and energy projects in Asia-Pacific. Committed to sustainable innovation, we offer OEM customization and JIT delivery. Let’s build resilient supply chains for aerospace, marine, and industrial applications