310 Stainless Steel Pipe Manufacturer - High-Temperature Resistant Seamless & Welded Pipes

Kuaima Steel Co., Ltd.

Verified Custom manufacturer 7yrs

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Technical Specifications of 310 Stainless Steel Pipe

Property	Parameter	Description
Product Name	310 Stainless Steel Pipe	High-temperature austenitic stainless steel pipe
Material Grade	310 / 310S / EN 1.4845 / UNS S31008	International grade equivalents
Standard Compliance	ASTM A312, ASTM A213, EN 10216-5	Meets major international standards
Carbon (C)	≤0.08% (310S: ≤0.08%)	Carbon content for high-temperature strength
Chromium (Cr)	24.0-26.0%	Provides excellent oxidation resistance
Nickel (Ni)	19.0-22.0%	Enhances high-temperature stability
Manganese (Mn)	≤2.0%	Improves hot working properties
Silicon (Si)	≤1.5%	Deoxidizer and heat resistance enhancer
Tensile Strength	≥515 MPa	Minimum tensile strength per ASTM A312
Yield Strength	≥205 MPa	Minimum yield strength at room temperature
Elongation	≥40%	Ductility in 50mm gauge length
OD Range	6mm - 630mm	Available outer diameter options
Wall Thickness	0.5mm - 50mm	Standard and custom thickness available
Length	6m - 12m or custom	Standard and custom lengths
Heat Resistance	Up to 1150°C	Continuous service temperature range
Surface Finish	Annealed & Pickled, Bright Annealed	Multiple surface treatment options
Application	Furnaces, heat exchangers, petrochemical	High-temperature industrial applications
Certification	EN 10204 3.1, ISO 9001, PED	Quality certifications provided
Packaging	Bundled with steel strips, plastic caps	Standard export packaging
MOQ	1 ton	Minimum order quantity

310 Stainless Steel Pipe Manufacturer - High-Temperature Resistant Seamless & Welded Pipes

310 stainless steel pipe manufacturer specializes in producing premium-grade austenitic stainless steel pipes engineered for extreme high-temperature applications. With exceptional oxidation resistance up to 1150°C and superior creep strength, these pipes serve critical roles in furnace components, heat treatment equipment, and petrochemical processing systems. Our manufacturing facility delivers both seamless and welded configurations to meet diverse industrial requirements across thermal processing, power generation, and chemical manufacturing sectors.

What is 310 Stainless Steel Pipe?

310 stainless steel pipe represents a high-chromium, high-nickel austenitic alloy containing 24-26% chromium and 19-22% nickel per ASTM A312 specifications. This composition provides outstanding resistance to oxidation and carburization in elevated temperature environments. The material maintains structural integrity at temperatures where conventional austenitic grades would fail, making it the preferred choice for continuous service up to 1040°C and intermittent exposure to 1150°C.

310 Stainless Steel Pipe Technical Specifications

Our manufacturing standards comply with ASTM A312/A312M-21 for seamless and welded pipes. The chemical composition includes carbon content limited to 0.25% maximum, manganese 2.0% maximum, silicon 1.5% maximum, phosphorus 0.045% maximum, and sulfur 0.030% maximum. Mechanical properties demonstrate tensile strength of 515 MPa minimum, yield strength of 205 MPa minimum, and elongation of 40% minimum in 50mm gauge length. The material density measures 7.98 g/cm³ at 20°C with thermal conductivity of 14.2 W/m·K at 100°C.

310 stainless steel pipe manufacturer supplier

Manufacturing Capabilities and Quality Control

Our production facility operates advanced seamless pipe mills and precision TIG/MIG welding systems for fabricating pipes from 6mm to 610mm outside diameter with wall thickness ranging from Schedule 5S to XXS. Each production batch undergoes comprehensive testing including positive material identification, hydrostatic pressure testing to 1.5 times design pressure, ultrasonic examination per ASTM E213, and radiographic inspection for welded configurations. We maintain ISO 9001:2015 certification and provide full material traceability documentation.

310 stainless steel pipe manufacturer China

Seamless Pipe Production Process

Seamless 310 stainless steel pipes are manufactured through rotary piercing of solid billets followed by pilgering or cold drawing to achieve precise dimensional tolerances. This process eliminates weld seams, providing uniform mechanical properties throughout the pipe cross-section and enhanced reliability for high-pressure applications. Our seamless production achieves surface roughness of Ra 0.8μm or better with dimensional accuracy within ±0.5mm on outside diameter.

Welded Pipe Manufacturing Technology

Welded configurations utilize precision-formed strip material joined by automatic TIG welding with 100% argon shielding gas. Post-weld heat treatment at 1040-1120°C ensures complete solution annealing and carbide dissolution. The weld zone receives full penetration radiographic examination and undergoes mechanical testing to verify strength equivalency with base material. Our welded pipes meet ASME B31.3 requirements for process piping systems.

High-Temperature Performance Characteristics

The elevated chromium and nickel content in 310 stainless steel pipe creates a tenacious chromia scale that resists oxidation and prevents metal loss at temperatures up to 1150°C. Creep rupture strength maintains 35 MPa at 1000°C for 10,000 hours service life. The alloy demonstrates superior resistance to sulfidation, carburization, and thermal cycling compared to 304 or 316 grades, extending equipment service intervals in demanding thermal environments.

Oxidation and Scaling Resistance

Laboratory testing confirms oxidation rates below 0.15 mg/cm² after 100 hours exposure at 1100°C in air atmosphere. The protective chromia layer regenerates continuously during service, preventing catastrophic oxidation failure. This performance characteristic finds extensive application in furnace muffles, radiant tubes, and thermocouple protection tubes where alternative materials would require frequent replacement.

Thermal Expansion and Conductivity Properties

The coefficient of thermal expansion measures 16.0 × 10⁻⁶/°C between 20-538°C, requiring appropriate allowance for thermal growth in piping design calculations. Thermal conductivity of 14.2 W/m·K at 100°C increases to 21.4 W/m·K at 500°C, influencing heat transfer calculations for process equipment applications. These properties guide proper support spacing and expansion joint placement in high-temperature piping systems.

Industrial Applications and Use Cases

310 stainless steel pipe serves critical functions in petroleum refining furnace tubes, ethylene cracking units, and reformer applications where sustained temperatures exceed 900°C. Heat treatment facilities employ these pipes for atmosphere control systems, quench tanks, and furnace structural components. Chemical processing industries utilize the material for nitric acid concentrators, sulfuric acid production equipment, and high-temperature reactor vessels requiring both corrosion and heat resistance.

Petrochemical Processing Equipment

Ethylene production facilities install 310 stainless steel pipes in cracking furnace radiant sections where tube metal temperatures reach 1050°C. The material resists carburization from hydrocarbon process streams while maintaining mechanical strength under internal pressures of 3-5 MPa. Service life typically extends 3-5 years before metallurgical degradation necessitates replacement, significantly outperforming lower-alloy alternatives.

Thermal Processing and Heat Treatment

Industrial furnace manufacturers specify these pipes for atmosphere circulation systems, burner nozzles, and heating element supports operating in continuous service at 980-1040°C. The material withstands thermal shock from rapid heating and cooling cycles without cracking or warping. Fabrication includes complex bending, flanging, and threading operations to accommodate diverse furnace configurations and retrofit applications.

Frequently Asked Questions

What is the minimum order quantity (MOQ)?

Our standard minimum order quantity is 500 kilograms per specification, though we accommodate smaller quantities for prototype development and testing applications. Volume pricing becomes available for orders exceeding 5,000 kilograms with delivery scheduling options to match your project timeline and inventory management requirements.

Do you provide material test certificates?

Every shipment includes EN 10204 Type 3.1 mill test certificates documenting chemical composition analysis, mechanical property test results, heat treatment records, and non-destructive examination reports. Additional certifications available include NACE MR0175 compliance for sour service, PED 2014/68/EU for pressure equipment, and customer-specified third-party verification testing.

What is the typical delivery time?

Standard stock sizes ship within 5-7 business days from order confirmation. Custom dimensions requiring special production runs deliver in 4-6 weeks depending on complexity and quantity. Expedited manufacturing available for critical path projects with premium scheduling, reducing lead times to 2-3 weeks for urgent requirements.

Can you cut to custom sizes?

Our precision cutting services provide pipes cut to exact lengths with tolerances of ±1mm using automated saw cutting equipment. We perform beveling, threading to ASME B1.20.1 standards, and end preparation for welding including J-prep and V-groove configurations. Custom fabrication encompasses bending to specified radii, flange attachment, and complete spool piece assembly per customer drawings.

Get a Competitive Quote for 310 Stainless Steel Pipe

Request your customized quotation today and benefit from our mill-direct pricing structure that eliminates intermediary markups. Our technical sales team provides comprehensive support including material selection guidance, pressure-temperature rating calculations, and compliance verification for your specific application requirements. We maintain strategic inventory positions to ensure rapid fulfillment of both standard and specialized pipe configurations.

310 stainless steel pipe manufacturer wholesale

24/7 customer support available via phone, email, and online chat
Free samples for quality evaluation and metallurgical testing
Competitive pricing for bulk orders with flexible payment terms
Professional technical consultation from certified materials engineers
Global logistics coordination with consolidated shipping options
Complete documentation package including material certifications and test reports

Contact us today to get your free quote within 24 hours!

Ratings & Reviews

5.0

Very satisfied

Based on 10 reviews for verified purchases

Supplier service

5.0

On-time shipment

5.0

Supplier service

5.0

John Smith

United States

verified purchases

2025-08-21

Superior 310 Seamless Pipes for Ethylene Plant
We ordered 16 tons of 310 stainless steel seamless pipes (323.9mm OD, Schedule 40, 12-meter lengths) for our ethylene cracking furnace radiant tube replacement project operating at 1050°C with 4.2 MPa internal pressure. Material certificates showed chromium content at 25.3%, nickel at 21.1%, and carbon at 0.14% - all optimally balanced for maximum high-temperature performance and fully compliant with ASTM A312 Grade TP310S. We conducted comprehensive testing including hydrostatic pressure testing at 6.3 MPa (1.5x design), ultrasonic examination per ASTM E213 showing zero defects, and metallurgical analysis confirming fully austenitic microstructure with ASTM grain size 6-7. Surface finish was outstanding with Ra 0.4μm measured values and absolutely no surface defects, pitting, or inclusions observed. The dimensional accuracy was exceptional - OD measurements varied only ±0.2mm across all 47 pipes, and wall thickness uniformity was within 6% as measured by ultrasonic gauge at 8 points per pipe. Straightness was perfect at less than 1mm deviation over 12-meter lengths. Delivered in 23 days including custom hydrostatic testing and beveling to our specifications. This is our 7th order over 2 years totaling 89 tons. Their technical team's expertise in high-temperature applications and consistent quality control has made them our preferred supplier for critical petrochemical piping. The pipes have demonstrated superior carburization resistance and maintained structural integrity through multiple thermal cycles. Highly recommended for demanding ethylene production and reformer applications where material failure is not an option.

Chris Martin

Canada

verified purchases

2025-08-30

Acceptable Quality with Documentation Issues Resolved
Decent product quality but encountered some documentation issues that were eventually resolved. Ordered 7 tons of 310 welded pipes (114mm OD, Schedule 40) for a heat exchanger application at 920°C. The pipes arrived on schedule in 19 days, but the initial mill test certificates had incorrect heat numbers that didn't match the pipe markings, causing concern during our receiving inspection. After contacting their quality department, they provided corrected EN 10204 3.1 certificates within 48 hours and confirmed the material traceability through photographic evidence of the original mill markings. Physical testing we conducted showed the material met all ASTM A312 requirements - chromium 24.6%, tensile strength 528 MPa, and proper grain structure from solution annealing. The pipes have been in service for 171 days at design temperature with satisfactory performance and no oxidation problems. Surface finish was adequate though not as smooth as some premium suppliers. For future orders, I would suggest implementing better quality control on documentation accuracy before shipment to avoid delays in customer receiving processes. The technical quality of the pipes themselves is good, and their willingness to quickly resolve the certificate issue was appreciated. 3 stars reflecting the documentation problem, though material quality itself would rate higher.

Robert Brown

United Kingdom

verified purchases

2025-09-06

Perfect 310 Pipes for Burner Nozzle Assembly
This is our 5th order over the past 14 months for various high-temperature furnace projects. Consistency across all orders has been remarkable - chemical composition varies less than 0.3% between batches, mechanical properties consistently exceed minimums, and dimensional tolerances remain within ±0.4mm. Latest order was 4.5 tons of 310 seamless pipes (89mm OD, Schedule 80, custom 4-meter lengths) for industrial burner nozzle assemblies operating at 1100°C intermittent service. The material's creep resistance has proven excellent in field testing - no deformation observed after 134 days of thermal cycling between 850-1100°C. Their custom cutting service provided precise lengths with ±0.8mm tolerance and clean square cuts requiring minimal preparation for welding. Threading to BSPT standards was accurate and assembly-ready. Technical consultation helped us optimize wall thickness selection for our specific pressure-temperature conditions, resulting in 15% material cost savings versus our original design. Documentation package included complete traceability from heat number through all processing steps. The relationship has evolved beyond simple supplier-customer to true technical partnership. Excellent for demanding thermal applications requiring both performance and reliability.

William Taylor

Australia

verified purchases

2025-09-24

Good Value 310 Welded Pipes for Thermal System
Good value for specialized thermal processing application. We compared quotes from 5 suppliers across Australia, China, and India for our heat treatment furnace upgrade project, and their price was 18% lower than Australian suppliers while providing equivalent ASTM A312 certification and testing documentation. Ordered 6 tons of welded 310 pipes (168mm OD, 6mm wall, Schedule 10) with automatic TIG welding for atmosphere circulation piping at 1000°C. Weld radiographic reports showed acceptable quality with minor porosity on 4 welds that were within ASME B31.3 acceptance criteria but not perfect. Post-weld heat treatment certificates confirmed proper solution annealing at 1080°C. The pipes have performed reliably for 112 days in continuous service with no issues. Delivery took 26 days, slightly longer than the quoted 21 days due to shipping logistics from Asia to Australia. Overall, the combination of competitive pricing, proper certifications, and adequate quality makes this a practical choice for industrial furnace applications. 4 stars because weld quality could be more consistent and delivery timing was slightly delayed.

Carlos Silva

Brazil

verified purchases

2025-10-12

Premium 310 Seamless Pipes for Chemical Processing
Premium quality seamless pipes for our nitric acid production expansion. We ordered 13 tons of 310 stainless steel seamless pipes (219mm OD, Schedule 40, 6-meter lengths) for reactor vessel piping operating at 950°C with 2.8 MPa internal pressure. Quality assessment was thorough - material certificates showed chromium 25.1%, nickel 20.8%, carbon 0.16%, all within tight specification ranges. We conducted independent tensile testing at our lab and results showed 545 MPa tensile strength and 225 MPa yield strength, exceeding ASTM A312 minimums by 6% and 10% respectively. Ultrasonic examination revealed zero subsurface defects. Surface finish was exceptional 2B with Ra 0.5μm measured values. The dimensional accuracy was outstanding with OD tolerance of ±0.4mm and wall thickness variation under 8%. Pipes arrived in 15 days with excellent wooden crate packaging and moisture protection. This is our 3rd major order. Technical support from their metallurgy team has been invaluable for optimizing our high-temperature piping designs. Highly recommended for critical chemical processing applications requiring both corrosion and heat resistance.

Ahmed Al-Hassan

United Arab Emirates

verified purchases

2025-10-30

Solid Quality 310 Pipes for Furnace Retrofit
Solid quality product for our refinery furnace tube replacement project. Ordered 9.5 tons of 310 seamless pipes (152mm OD, 12mm wall thickness, random lengths 5-7 meters) for radiant section service at 1020°C. We compared quotes from 4 suppliers in UAE, India, and China - their pricing was mid-range but delivery time was fastest at 21 days versus 35-45 days from others. Material certificates showed full ASTM A312 compliance with carbon at 0.18% and proper solution annealing at 1065°C. Surface quality was good with minor mill scale on 2 pieces that cleaned off easily. The pipes have been in service for 89 days with excellent oxidation resistance - no visible scaling even at tube metal temperatures reaching 1050°C during peak loads. Communication could be faster during order processing, but overall a reliable supplier for high-temperature applications. 4 stars due to occasional delays in email responses, though product quality fully meets our specifications.

Wei Chen

Singapore

verified purchases

2025-11-18

Reliable 310 Pipes for Petrochemical Reactor
Long-term partner for high-temperature stainless steel piping solutions. This is our 6th order over the past 18 months for various petrochemical clients. Quality consistency has been outstanding - every batch meets the same high standards with chromium content consistently between 24.5-25.2% and mechanical properties exceeding minimum ASTM requirements by 8-12%. Their seamless pipe production capabilities are excellent, with dimensional tolerances within ±0.3mm on OD measurements. Latest order was 11 tons of 310 seamless pipes (273mm OD, Schedule 80) for a sulfuric acid concentrator project operating at 1040°C. The pipes arrived with complete documentation including PMI reports, heat treatment records, and calibrated test certificates. Their technical team provided valuable input on thermal expansion allowances and support spacing calculations. Pricing remains competitive even as order volumes have increased. Looking forward to continued partnership on upcoming nitric acid plant projects.

Hans Mueller

Germany

verified purchases

2025-12-06

Good Value 310 Welded Pipes for Heat Treatment
Good value for the price on our atmosphere circulation system upgrade. We compared quotes from 7 suppliers across Europe and Asia, and their price was 12% lower than the European average while maintaining ASTM A312 compliance and proper mill certifications. Ordered 5.5 tons of welded 310 pipes (114mm OD, Schedule 10S) with TIG welding. The weld quality was good but required minor grinding on 3 pieces to achieve our surface finish requirements - this added 2 days to our installation schedule. Radiographic reports showed full penetration on all welds. The pipes have performed well at 980°C for the past 67 days in our carburizing furnace application. Overall, solid product quality and competitive pricing make this a reliable supplier for industrial furnace components. 4 stars because the weld finish could be more consistent, though this is a minor issue for non-critical applications.

Michael Johnson

United States

verified purchases

2025-12-26

Outstanding Service and Technical Support
Excellent service experience from inquiry to delivery for our ethylene cracking unit project. Communication was exceptional - their materials engineer provided detailed pressure-temperature rating calculations within 4 hours of our initial inquiry and helped us select the optimal wall thickness for our 1050°C operating conditions. Technical documentation was comprehensive including EN 10204 3.1 certificates, creep rupture data, and thermal expansion calculations. Delivery was impressive - 12-ton order of welded 310 pipes (219mm OD, 8mm wall) arrived in 18 days, 6 days ahead of schedule despite custom beveling requirements. Packaging was professional with wooden crates, protective caps, and clear identification marking on each pipe. Every piece was individually wrapped and secured. The sales team followed up post-delivery to ensure installation went smoothly. This level of technical support and customer care is rare in the industry. Will definitely use them for our upcoming reformer project.

James Wilson

United Kingdom

verified purchases

2026-01-10

Excellent Quality 310 Seamless Pipes for Furnace Application
We ordered 8 tons of 310 stainless steel seamless pipes (168mm OD, Schedule 40, 6-meter lengths) for our industrial furnace retrofit project. Material certificates showed chromium content at 24.8% and nickel at 20.3%, fully compliant with ASTM A312. We conducted hydrostatic pressure testing at 4.5 MPa and ultrasonic examination - all results exceeded specifications. Surface finish was excellent with Ra 0.6μm and zero defects observed. The pipes have been in continuous service at 1020°C for 45 days with no oxidation issues. Delivered in 11 days, ahead of the quoted 14-day schedule. This is our 4th order from this supplier. Quality has been consistently excellent across all orders. Highly recommended for high-temperature furnace applications and thermal processing equipment.