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310S/2520 High-temperature Resistant Stainless Steel Rod

310S/2520 Extremely high temperature resistance, capable of long-term operation in environments of 1000~1200℃, with even higher short-term temperature resistance. It is a high-temperature specialized material that cannot be replaced by conventional stainless steel. High chromium and nickel content (25Cr+20Ni), it has extremely strong resistance to oxidation and sulfidation, and is not prone to peeling, flaking, or burning at high temperatures. It is not easily deformed or sags under high-temperature loads.

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Product Name		Stainless steel tube/pipe
Outer diameter	Round Tube	Φ9.5, Φ12.7, Φ16, Φ19, Φ22, Φ25, Φ32, Φ38, Φ51, Φ63, Φ76, Φ89, Φ102mm
	Square Tube	Sizes: 10×10, 15×15, 19×19, 25×25, 30×30, 38×38, 50×50, 60×60, 76×76, 100×100mm
	Rectangular Tube	Sizes: 10×20, 15×25, 25×38, 25×50, 30×60, 45×75, 50×100mm, etc.
Wall Thickness	Ultra-thin wall	≤2.0mm, instrument tubes, precision heat exchangers, thin-walled welded pipes
	Conventional thin-wall	2.0～6.0mm, general fluids, household decoration, municipal pipelines
	Thick-walled	6.0～10.0mm, industrial pressure pipelines, heat exchanger main pipelines
	Ultra-thick wall	>10.0mm, high-pressure boilers, petrochemical reactors, pipes for mechanical forgings
Length		Standard: 6 meters in fixed length (most suitable for container shipment) Customizable: 2.4 meters, 3 meters, 4 meters, 5.8 meters, etc.
Standard		ASTM, AISI, JIS, GB, DIN, EN, etc.
Surface		Black, Bright Polished, Rough Turning, Matt Surface Treatment, No. 4. BA, etc.
Scope of Application		Common applications for stainless steel pipes include food processing,Textile operations, Breweries, Water treatment plants, Oil and gas processing,Fertilizers and pesticides, Chemical applications,Construction, Pharmaceuticals, Auto parts, etc.
Certificate		ISO, SGS, BV, etc.
Production Technology		Hot Rolling, Cold Rolling
Edge Processing		Edging, Trimming

Grade International Comparison & Compliance Standards

American Standard: 310S / UNS S31008

Chinese Standard: 06Cr25Ni20

European Standard: 1.4845

Common Name: 2520 (25Cr-20Ni)

Adhering to authoritative foreign trade standards

Bar stock: ASTM A276, A479, EN 10088, GB/T 1220, JIS G4303

Quality inspection documents: EN 10204 3.1/3.2, PMI spectral analysis, solution heat treatment report, high-temperature material conformity declaration

Key alloy composition advantages:

Cr≈25%, Ni≈20%, low-carbon design, high temperature resistance, oxidation resistance, and carburization resistance far exceed 304/321, making it a top-tier industrial high-temperature base material.

Brand/(wt%)	C	Cr	Ni	Mn	Si	P	S
310S	≤0.08	24.0~26.0	19.0~22.0	≤2.0	≤1.5	≤0.04	≤0.03

Mechanical Properties (Room Temperature)

Tensile Strength	Yield Strength	Elongation	Hardness
≥515 MPa	≥205 MPa	≥40%	≤ 187

Temperature Resistance Core Parameters: Continuous long-term operating temperature: 1000～1200℃. Intermittent short-term temperature resistance up to 1250℃+. Resistant to high-temperature oxidation, carburization, and thermal cycling.

Core Advantages in Foreign Trade

Extreme High Temperature Resistance and Oxidation Resistance: High alloy ratio of 25Cr-20Ni, long-term usable temperature up to 1100℃, resistant to high temperature oxidation, carburization, and high temperature creep, far exceeding 321/304.

High Temperature Mechanical Stability: Strength does not decrease at high temperatures, not easily deformed or cracked, making it a core material for continuous high-temperature industrial furnaces.

Excellent Weldability: Good weldability, post-weld high temperature and corrosion resistance remain stable, suitable for large high-temperature welded assemblies.

Broad-Spectrum Corrosion Resistance: Resistant to high temperature oxidation and some acid and alkali fumes, strong comprehensive hot corrosion resistance.

Austenitic Non-Magnetic/Weakly Magnetic: Compatible with high-temperature non-magnetic precision heat-resistant equipment.

Core Export Application Areas (High-Temperature Specific Operating Conditions)

Metallurgical Heat Treatment Industry: Furnace bottom rollers, furnace support rods, heat treatment tooling, quenching fixtures, high-temperature resistant structural components for sintering furnaces

Boiler, Power & Thermal Energy Equipment: High-temperature boiler combustion chamber accessories, ultra-high temperature steam pipeline fasteners, heat-resistant support components for power plants

Petrochemical & Refining Cracking: High-temperature cracking units, heating furnace tube accessories, heat-resistant rods for high-temperature reactors, carburizing resistant components

Kiln, Ceramics & Glass Industry: Kiln refractory load-bearing components, high-temperature resistant components for glass melting equipment, drive shafts for firing kilns

Exhaust Gas Environmental Protection & High-Temperature Incineration: Waste incinerator accessories, heat-resistant structures for high-temperature waste gas treatment, frames for high-temperature dust removal equipment

Not Applicable to: Normal temperature corrosion, chloride ion seawater, low-cost civilian applications (high cost)

Common surface treatments: Hot-rolled No.1, pickled black skin, cold-drawn gloss, peeling and polishing, fine grinding, sandblasting, custom high-temperature passivation treatment.

Payment Methods

Flexible payment terms available: T/T and L/C. For new clients, 30% advance payment for production, balance against copy of B/L. L/C is acceptable for large & regular orders to secure both parties.

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Warehousing Management

Before each batch of steel leaves the factory, a complete process inspection is strictly carried out. From chemical composition, mechanical properties to dimensional tolerance and surface quality, each item is carefully checked to ensure compliance with national standards and export regulations. At the same time, the quantity, packaging and rust prevention treatment are also verified. An original factory warranty certificate is attached, guaranteeing the quality. Before shipment, inspection photos are provided. Any non-compliant items will not be released, and the quality is fully controllable throughout the process. This ensures your overseas purchasing is safe and worry-free.

All items are visually inspected before delivery. No cracks, deformation, rust, scratches or cutting marks are allowed; edges must be smooth. Only visually sound products will be shipped.

Thickness, width, length, wall thickness, outer diameter have been measured. Straightness, curvature, torsion, diagonal tolerance all meet the corresponding tolerance requirements.

Quality inspection includes: mechanical property tests (yield strength, tensile strength), elongation rate, impact energy, hardness testing, chemical composition testing, process performance testing, etc.

Inspection according to packaging requirements: secure binding, moisture-proof film, rust-proof paper, export fumigation/fumigation-free wooden crates, shipping marks, gross weight, net weight, etc.

We will provide full reception services to support the customers' on-site inspection of the goods.

Hot Rolling Production Line

Cold rolling precision processing

Cold drawing/cold rolling line

Hot Rolling Production Line

Hot rolling production line (producing hot-rolled coils/medium-thick plates, thickness 2–60mm)

Cold rolling precision processing

(Producing ultra-thin / high-precision / shiny panels, with thickness ranging from 0.1 to 3mm, for high-end products)
Cold drawing/cold rolling line

(High-precision cold-drawn round steel, square steel, hexagonal steel, and special-shaped bars)

Cold drawing/cold rolling line

(High-precision cold-drawn round steel, square steel, hexagonal steel, and special-shaped bars)

Warehousing Management

A ten-thousand-ton standardized warehouse with grid-based zoning and system positioning enables rapid material retrieval and reduces the time spent searching for materials.

Inbound inspection: Verify the physical items against the inbound form, inspect the appearance, dimensions, and labels. Once confirmed to be correct, the materials are entered into the ERP system and processed for storage.

Logistics and Global Delivery: Self-operated fleet + contracted logistics partners; expedited service available for urgent orders.

International Shipping: Supports FOB, CIF, DDP, and other trade terms, covering 100+ countries and regions.

Process: Booking → Trucking → Customs Declaration → Loading onto Ship/Aircraft → Bill of Lading Issuance → Document Delivery → Destination Port Customs Clearance (Optional) → Last-Mile Delivery.

Provides door-to-door one-stop logistics with full tracking to ensure safe and timely arrival of goods.

After-Sales Service and Traceability: Delivery receipts, logistics information, and quality inspection documents are sent to customers within 24 hours of shipment.

Established a full product lifecycle traceability system, allowing tracking of production, quality inspection, warehousing, and transportation records.

Follow-up inspection within 72 hours of arrival; rapid response and handling of quality issues; assistance in resolving customs clearance issues for foreign trade orders.

Packaging Method