High-Chromium Nickel Molybdenum and Copper Content 904L Stainless Steel Raw Material for Pharmaceutical Industries

Product Overview:

904L Stainless Steel is a high-performance super austenitic alloy renowned for its exceptional resistance to sulfuric acid, chlorides, and other aggressive media. With elevated chromium (19-23%), nickel (23-28%), molybdenum (4-5%), and copper (1-2%) content, it outperforms standard 316L and 317L stainless steels in highly corrosive environments. Widely used in chemical processing, marine engineering, and pharmaceutical industries, 904L combines durability with versatility, making it a top-tier choice for critical applications demanding longevity and reliability.

Key Physical Properties:

• Chemical Composition: Cr (19-23%), Ni (23-28%), Mo (4-5%), Cu (1-2%), C (≤0.02%), Fe (Balance)

• Hardness (HB): 160-220

• Tensile Strength (Rm): ≥490 MPa

• Yield Strength (Rp0.2): ≥220 MPa

• Elongation (A5): ≥35%

• Density: 7.95 g/cm³

• PREN (Pitting Resistance): ≥36

• Max Service Temp: 400°C (752°F)

Product Features:

1. Unmatched Corrosion Resistance

   • Resists sulfuric acid, phosphoric acid, chlorides, and seawater, even in high-concentration and high-temperature conditions.

   • Immune to stress corrosion cracking (SCC) and crevice corrosion in chloride-rich environments.

2. High Mechanical Strength

   • Maintains structural integrity under high-pressure and thermal cycling, ideal for chemical reactors and heat exchangers.

   • Superior to 316L in both strength and corrosion resistance.

3. Excellent Fabrication Versatility

   • Weldable via TIG, MIG, and SAW methods (use 904L filler wire).

   • Compatible with cold working and machining (annealing recommended post-processing).

4. Hygienic & Cleanability

   • Smooth, non-porous surface resists bacterial growth, perfect for pharmaceutical and food processing equipment.

5. Eco-Friendly & Sustainable

   • 100% recyclable and RoHS-compliant, aligning with green manufacturing initiatives.

Core Advantages:

• Superior to 316L/317L: Extended lifespan in sulfuric acid and chloride environments.
• Global Certifications: Complies with ASTM B625, EN 10088, NACE MR0175, and ASME SB-649.
• Custom Solutions: Available in sheets, pipes, fittings, bars, and precision-machined parts.
• Fast Delivery: Global logistics network ensures timely shipments to Europe, Asia, and the Americas.
• Technical Support: Free guidance on welding, machining, and application optimization.

Typical Applications:

• Chemical & Petrochemical: Sulfuric acid reactors, pickling tanks, heat exchangers, distillation columns.

• Pharmaceutical: CIP (Clean-in-Place) systems, bioreactors, solvent storage tanks.

• Marine & Offshore: Seawater piping, desalination units, offshore platform components.

• Pulp & Paper: Bleaching equipment, digesters, pulp handling systems.

• Energy: Flue gas scrubbers, geothermal energy systems, LNG processing.

• Food & Beverage: Vinegar production tanks, citrus juice processing lines.

Why Choose Our 904L Stainless Steel?

• Premium Quality: Controlled low-carbon content and solution annealing ensure optimal corrosion resistance.
• Cost Efficiency: Reduces downtime and replacement costs in aggressive environments.
• Tailored Services: Cut-to-size, polishing, and precision machining for ready-to-install components.
• Quality Assurance: Full PMI (Positive Material Identification) testing and 24-month warranty.
• 24/7 Support: Dedicated team for instant quotes, material certs, and technical troubleshooting.

Quality Inspection:

Quality Management Department is establshed in the enterprise, which is responsible for the implementation of quallty management acrossall sectors, including QC, QA and implement and supervise various management system. The company reviews the Quality Manual byconducting management reviews annually to confirm its conformance, effectiveness and suitability.

Project Achievement

HENGLI Petrochemical 40 million / year ton of oil refining integration project	ZHEJIANG Petrochemical 40 million / year ton of oil refining integration project	LIANYUNGANG Petrochemical 3.2 million tons / young hydrocarbon comprehensive	YISHENG New Material The 6.6 million tons / year of the PTA project	CNOOC Huizhou Refining & Chemical Co Huilian Phase II, 22 million / year ton of oil refining Reconstruction and expansion project	Sinopec Zhenhai Refining & Chemical Company 1.2 million / year ton ethylene renovation and expansion project	Wanhua Chemical 480,000 tons / year bisphenol A integration project	GUANGXI Huayi New Materials Integration project of new chemical materials	CNOOC Shell The SMPO & POD project	China AtlantoShaanxi Coal Chemical Industry: 1.8 million tons / year ethylene glycol project
Hainan Huasheng 2.26 million tons / year non-photogamic polycarbonate project	Shenghong Refining The 16 million tons / year oil refining project	Anhui Haoyuan Chemical Industry 300,000 tons / year ethylene glycol project	Heilongjiang Longyou Petrochemical Company5.5 million tons / year heavy oil catalytic pyrolysis project	HuaLu Hengsheng 500,000 tons / year ethylene glycol project	Baofeng Energy600,000 tons / year methanol to olefin project	Jiangnan Shipyard (98000m³ liquefied ethane ship, etc.) Brand number: 316 / 316L, delivery time: 2020.12	Keppel shipyard in Singapore (FLNG ship) Brand number: 316 / 316L, delivery time: 2020.1	Guangzhou Wenchong Shipyard (Super double-phase steel desulfurization tower) Brand number: S32750 Delivery time: 2021.3	CSSC Dalian (FPSO, MV31, etc.) Brand number: 316L, etc., delivery date, 2019.8
725 Institute of China Shipbuilding Industry (Cu-Ni alloy Tube)	Nantong COCSO Shipyard (FSRU ship module)	CIMC Raffles (Drilling Rig)	CNOOC Orient 13-2 (Lined pipe)	CNOOC Bozhong 19-6 (Lined Pipe)	Petrobras MODEC FPSO (COSCO Shipping)	CNOOC Guangxi LNG, storage and transportation storage Brand number: 304 / 304L Specification: (8 "~32")×(3.76~9.53mm)	CNOOC Zhejiang LNG Phase II Brand number: 304 / 304L Specification: (6 "~28")×(7.11~10.31mm)	Sinopec Shandong LNG Phase II Brand number: 304 / 304L Specification: DN250 SCH10S	LIANYUNGANG Petrochemical A 4X160000m³ low-temperature ethane storage tank Brand number: 304 / 304L Specification: 813X12.7MM Delivery time: 2020.9
Sinopec Luoyang Institute Wenzhou LNG terminal Brand number: 304 / 304L Specification: 219.1~711X12.7MM Delivery time: 2022.3	Huatai Shengfu 160,000 m ³ low-temperature ethane storage tank Brand number: 304 / 304L Specification: 219~508X9.53MM	YAMAL LNG Brand number: 304 / 304L Specification: 406~914X9.53MM	Beijing Maiden Voyage	Oriental Hope	Sichuan Yongxiang 70,000 tons / year high purity polysilicon project	Xinjiang Daquan 25,000 tons / year high purity polysilicon project	Eagle Central China Paper Industry 500,000 tons of box board project	Guangxi Sun Paper 3.5 million tons of forest pulp and paper integration project	APP for Asian pulp and paper Chemical machine pulp and sewage treatment project
TCL Shenzhen Huaxing Optoelectronics semiconductor clean pipeline project	Beijing Daxing Airport	Hong Kong-Zhuhai-Macau/Macao Bridge Tubes used for stainless steel construction	CNNC Xiapu nuclear Power Plant Fast reactor demonstration project of CNNC 2.3	CONBA Stainless steel pipe for pharmaceutical engineering	Shenghong Refining Stainless steel associated heat pipe	Hangzhou Sewage Treatment Plant Stainless steel pipe for backwash purification unit	Qilu Pharmaceutical Fluid stainless steel pipe for raw material delivery	Zijin Mining Wet copper smelting, stainless steel sewage pipe	ect
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Certificate

API-5LD AUTHENTICATION	American Petroleum Institute API 5LC Certificate	ASME Certificate in the United States	EU PED&AD2000 certificate	ABS classification society certification certificate in the United States	DNV Det Norske Veritas Certificate	RINA Italian Bureau of Shipping Certificate	BV French Bureau of Shipping certification	LR Lloyd's Register Certificate of Approval	Customs Union EAC Certificate	Russian GOST certificate

Raw Material Vendors	Cooperation Partners

Packing and Shipping:

This peoduct is carefully packaged to ensure its safe delivery to you. It is wrapped in protective packaging material to prevent any scratches or damage during transit.

For shipping, we use trusted delivery services to make sure your product arrives promptly and in excellent condition. You can track your order to know exactly when it will reach you.

Conquer Corrosion with 904L – The Ultimate Choice for Harsh Environments!
From chemical plants to offshore platforms, 904L stainless steel ensures decades of reliable service. Request aquote today – empower your projects with alloy excellence!