AISI ASTM Stainless Steel Sheet 317 Cold Rolled Stainless Steel Sheet High Quality

Grade Standard: AISI & ASTM Certified S31700 / 317 High-Molybdenum Austenitic Stainless Steel

Manufacturing Process: Precision multi-pass cold rolling, homogenizing annealing, stress relief treatment, ultra-precise dimension calibration

Surface Specification: Premium 2B cold rolled finish, flat & pore-free uniform surface, customizable BA, No.4 and anti-fingerprint finishing

Core Alloy Feature: Elevated Mo content (3.0%–4.0%) + upgraded Cr-Ni ratio, far stronger anti-corrosion performance than standard 316 series

Unique Differentiation: Professional heavy-duty anti-corrosion grade for harsh industrial media, excels in sulfur-containing, acidic and high-chloride environments where 316/316L fails prematurely

Core Application Positioning: Specialized for chemical processing, industrial wastewater treatment, desulfurization systems, pulp & paper manufacturing and high-stress corrosive industrial equipment

AISI ASTM 317 cold rolled stainless steel sheet is a high-end heavy-duty anti-corrosion alloy upgraded beyond conventional 316 and 300-series stainless steels, serving as a professional industrial-grade material for extreme corrosive working conditions. Completely different from 316L ultra-low-carbon welding optimization, 316Ti titanium-stabilized high-temperature aging resistance and 310S high-temperature oxidation resistance, 317 focuses on enhanced resistance to industrial chemical media erosion. With significantly increased molybdenum, chromium and nickel alloy content, it solves the core defects of ordinary molybdenum steel such as insufficient pitting resistance, poor sulfur medium tolerance and unstable performance in high-concentration chloride environments. Produced by strict ASTM and AISI standard cold rolling technology, each sheet features ultra-flat plate shape, consistent internal grain structure, tight dimensional tolerance and excellent mechanical uniformity, making it the preferred reliable material for long-cycle service of heavy industrial anti-corrosion equipment.

The fundamental advantage of 317 stainless steel lies in its industry-leading high-molybdenum alloy formula. While standard 316 only contains 2.0%–3.0% molybdenum, 317 steel is upgraded to 3.0%–4.0% molybdenum content, paired with higher chromium and nickel proportion. This optimized metallographic structure greatly enhances resistance to pitting corrosion, crevice corrosion and uniform corrosion in complex industrial media. It delivers outstanding tolerance to sulfurous acid, dilute sulfuric acid, acetic acid, chloride brine and industrial mixed corrosive media, performing far better than all 316 derivative grades in chemical industrial environments.

In terms of mechanical properties, 317 maintains stable high tensile strength and structural rigidity under long-term corrosive working conditions. Different from decorative and sanitary-focused stainless steel grades, it retains stable mechanical performance under continuous medium erosion and high-load operation, no structural softening or strength attenuation. Its annealing-state non-magnetic property avoids magnetic adsorption of industrial impurity particles, effectively reducing surface fouling and local concentration corrosion risks. Besides room-temperature corrosion resistance, 317 also owns reliable high-temperature oxidation resistance up to 870°C, adapting to intermittent high-temperature heating and corrosive medium alternating working conditions.

Our precision cold rolling process further optimizes the comprehensive performance of 317 sheets. After multi-pass fine rolling and closed stress-relief annealing, the internal residual stress is completely eliminated, ensuring no warping, deformation or cracking during secondary cutting, bending and welding. The compact and smooth 2B surface avoids surface pores and trachoma defects of ordinary plates, preventing corrosive medium from hiding and accumulating, thus improving overall anti-corrosion stability of finished equipment.

317 cold rolled stainless steel balances superior anti-corrosion performance and friendly processing adaptability. Compared with other high-alloy anti-corrosion steels that are difficult to form and weld, 317 retains good ductility and weldability, supporting conventional argon arc welding, laser welding and mechanical cold forming. It can be freely processed into various complex-shaped equipment casings, lining structures and splicing components, fully meeting customized manufacturing needs of industrial non-standard equipment.

It is worth noting that compared with low-carbon 316L, standard 317 has normal carbon content, so proper post-weld heat treatment is recommended for long-term heavy-corrosion working conditions to eliminate sensitization risks. This professional processing characteristic makes it more suitable for fixed industrial equipment fabrication rather than arbitrary decorative processing, highlighting its pure industrial heavy-duty positioning. All our finished 317 sheets are strictly tested in accordance with AISI and ASTM standards, with stable batch composition and zero performance deviation, suitable for large-scale industrial project supporting use.

317 stainless steel sheet is highly targeted, exclusively serving heavy industrial anti-corrosion fields that cannot be covered by conventional stainless steel materials. In chemical industry, it is widely used for chemical reaction tank lining, mixed acid storage equipment panels, chemical pipeline anti-corrosion cladding and pharmaceutical chemical intermediate processing equipment, resisting long-term erosion of mixed acidic media.

In environmental protection and flue gas treatment industry, it is the core material for desulfurization and denitrification equipment inner plates, waste incineration flue gas treatment cabinets and industrial wastewater sedimentation tank lining. It effectively copes with sulfur-containing flue gas and high-chloride wastewater corrosion, solving the problem of short service life of ordinary stainless steel environmental protection equipment.

In pulp and paper manufacturing industry, 317 sheets adapt to high-temperature and high-chloride pulp cooking and bleaching environments, used for equipment structural plates and anti-corrosion lining components. It is also widely applied in marine chemical terminal facilities, offshore industrial platform auxiliary anti-corrosion structures and high-salt industrial workshop equipment shells, providing long-term stable anti-corrosion protection for harsh industrial scenarios.

Industrial equipment made of 317 cold rolled sheet features strong operational stability and low maintenance frequency. The dense cold-rolled surface is not easy to adsorb industrial dust and chemical residues. Regular flushing with clean water and wiping with neutral detergent can keep the surface clean and avoid local medium accumulation corrosion. For equipment working in strong acid and high-sulfur environments, regular visual inspection and residual medium cleaning can effectively extend service life.

Different from ordinary stainless steel that is prone to pitting and rust penetration after medium erosion, 317 high-molybdenum alloy structure has strong corrosion resistance tolerance. Even after long-term industrial operation, it will not produce penetrating corrosion and structural failure, greatly reducing equipment shutdown maintenance frequency and replacement cost for industrial enterprises.

First of all, 317’s high-molybdenum upgraded alloy formula provides industry-leading heavy anti-corrosion capability, which is irreplaceable for sulfur-containing and high-chloride harsh industrial environments, completely surpassing 316/316L in industrial medium resistance. Secondly, strict AISI and ASTM standard production ensures qualified chemical composition and mechanical properties, meeting international industrial engineering bidding and acceptance standards. Thirdly, precision cold rolling technology guarantees ultra-high flatness and precise tolerance, reducing processing difficulty and improving finished equipment yield.

Fourthly, it integrates high medium corrosion resistance and certain high-temperature oxidation resistance, realizing dual-scenario adaptation of normal-temperature chemical corrosion and intermittent high-temperature working conditions. Fifthly, factory direct supply provides stable batch quality and competitive wholesale price, supporting large-scale industrial equipment supporting procurement and long-term order cooperation. Sixthly, multiple surface finishing and customized cutting services meet diversified industrial manufacturing requirements, providing one-stop raw material solutions for heavy industrial anti-corrosion projects.

We can provide complete ASTM/AISI inspection certificates, factory mill test reports and free product samples. Welcome to contact us for accurate bulk quotation and industrial customized processing solutions.