Stainless Steel 310 Pipe
Steel Pipe & Tubes has been a leading supplier of Stainless Steel piping solutions.
Stellar Alloys is a trusted manufacturer, stockist, and global exporter of Stainless Steel 310 / 310S Pipes and Tubes, serving industries that demand exceptional quality and reliability. With over 25 years of proven expertise, we have earned a reputation for supplying high-performance piping solutions that withstand extreme environments such as power generation, petrochemicals, refineries, cement, and offshore applications.
Our extensive product range includes ASTM A312 TP310 Seamless Pipes, Welded Pipes, Seamless Tubes, and Welded Tubes, all manufactured and tested in compliance with ASTM, ASME, DIN, and EN standards. Every pipe and tube undergoes rigorous quality checks, including hydrostatic testing, radiography, PMI, and ultrasonic inspection, ensuring consistent mechanical strength, corrosion resistance, and heat resistance.
By maintaining large inventories and leveraging advanced production capabilities, Stellar Alloys supports both bulk export requirements and project-specific custom orders. Our ISO and PED-certified facilities, combined with a strong international supply chain, make us the preferred choice for EPC contractors, OEMs, and procurement engineers across 40+ countries.
SS 310 Pipe Suppliers, ASTM A312 TP310 Seamless & Welded Tube, Price List & Weight Chart
What is Stainless Steel 310 / 310S Pipe?
Stainless Steel 310 and 310S Pipes are high-performance austenitic stainless steels designed to withstand extreme temperatures and corrosive conditions. Grade 310 contains high levels of chromium (24–26%) and nickel (19–22%), giving it excellent oxidation resistance and the ability to retain strength even at temperatures up to 1100°C. The “S” variant, 310S, is the low-carbon version with enhanced weldability and reduced risk of carbide precipitation during high-temperature service or welding operations.
These pipes are widely preferred in industries that require durability, structural stability, and long service life under severe conditions. Applications include furnace parts, heat treatment baskets, boiler tubes, petroleum refining equipment, and exhaust systems where both heat resistance and corrosion resistance are critical. Whether supplied in seamless or welded form, SS 310 / 310S Pipes and Tubes deliver reliability, making them one of the most trusted materials for high-temperature engineering solutions.
Types & Popular Variants of SS 310 Seamless & Welded Pipe
Select the right Inconel 625 Pipe or Inconel 625 Tube for your duty—seamless to ASTM B444 for high‑integrity pressure service or welded to ASTM B705/B704 for economical large‑OD runs. Use this map to link UNS N06625 product forms to standards and typical applications so you can match form to temperature, pressure and corrosion duty.
Stainless Steel 310 Pipe
ASTM A312 TP310 Seamless Pipe
SS 310 ERW Pipe
Equivalent Material Grades of SS 310 / 310S Pipe
Different international standards refer to SS 310 / 310S under varied grade names. The table below lists common equivalents.
| Standard | Grade |
| ASTM | A312 TP310 / TP310S |
| ASME | SA312 TP310 / TP310S |
| UNS | S31000 / S31008 |
| WNR | 1.4841 / 1.4845 |
| DIN | X15CrNi25-20 / X8CrNi25-21 |
Specifications & Standards of ASTM A312 TP310 Seamless & Welded Pipe
ASTM A312 TP310 Seamless Pipe Specifications
Seamless SS 310 pipes are designed for high-temperature and pressure service where uniformity and strength are critical. Manufactured as per ASTM A312, these pipes are supplied in a wide range of sizes, schedules, and finishes to meet industrial requirements.
| Parameter | Range |
| Size | ½” NB – 24” NB |
| Thickness | Sch 5S – Sch XXS |
| Length | Single Random, Double Random, Cut Lengths |
| Finish | Annealed, Pickled, Polished |
ASTM A312 TP310 Welded, ERW & EFW Pipe Specifications
Welded, ERW, and EFW stainless steel 310 pipes are widely used where large diameters and cost efficiency are required. These pipes are produced with precise tolerances and supplied in multiple shapes, finishes, and end conditions to suit different industries.
| Parameter | Range |
| Size | ½” NB – 48” NB |
| Shape | Round, Square, Rectangular |
| Finish | Bright Annealed, Polished, Pickled |
| Ends | Beveled, Plain, Threaded |
Tensile Strength, Yield Strength & Temperature Limit of SS 310 Pipe
The mechanical properties of SS 310 / 310S pipes define their ability to withstand stress, pressure, and extreme heat. The table below highlights the minimum tensile strength, yield strength, elongation, hardness, and maximum service temperature.
| Property | Value |
| Tensile Strength | 515 MPa (min) |
| Yield Strength (0.2% Proof) | 205 MPa (min) |
| Elongation | 40% min |
| Hardness | ≤ 217 HB |
| Service Temperature | up to 1100°C |
Dimensions, Sizes & Schedules of SS 310 Pipe
310 Stainless Steel Pipe Sizes & Dimensions (Inch & Metric)
SS 310/310S pipes are produced in a wide range of diameters and wall thicknesses to meet diverse industrial applications. The table below shows the standard dimensional range.
| Outside Diameter (OD) | Wall Thickness Range | Length |
| 6.35 mm – 610 mm | 0.3 mm – 50 mm | 5 m – 12 m |
SS 310 Pipe Schedule & Wall Thickness
Pipe schedules define the thickness and pressure capacity of SS 310 pipes. Below is a quick reference for common schedules.
| Schedule | Wall Thickness (inches) | Wall Thickness (mm) |
| Sch 5S | 0.065” | 1.65 mm |
| Sch 10S | 0.083” | 2.11 mm |
| Sch 40 | 0.109” | 2.77 mm |
| Sch 80 | 0.147” | 3.73 mm |
| Sch 160 | 0.250” | 6.35 mm |
| XXS | 0.500” | 12.70 mm |
Schedule 40 Stainless Steel 310 Pipe Dimensions
Schedule 40 is one of the most widely used classes for SS 310 pipes in process and structural industries. Typical values are given below.
| Nominal Pipe Size (NPS) | Outside Diameter (OD) | Wall Thickness (mm) | Weight (kg/m) |
| ½” | 21.3 mm | 2.77 | 1.29 |
| 1” | 33.4 mm | 3.38 | 2.72 |
| 2” | 60.3 mm | 3.91 | 5.44 |
| 4” | 114.3 mm | 6.02 | 18.97 |
| 6” | 168.3 mm | 7.11 | 29.74 |
Size Schedule Chart for SS 310 Welded & ERW Tubes
SS 310 welded and ERW tubes are manufactured in different schedules to handle varying pressures. The chart below provides standard combinations.
| Tube OD (mm) | Schedule | Wall Thickness (mm) | Application |
| 21.3 | Sch 40 | 2.77 | General piping |
| 48.3 | Sch 80 | 5.08 | High-pressure lines |
| 88.9 | Sch 160 | 7.62 | Boiler & heat exchanger |
| 114.3 | Sch XXS | 12.70 | Heavy-duty service |
Chemical, Mechanical & Physical Properties of SS 310 / 310S Pipe
The performance of Stainless Steel 310 and 310S pipes in high-temperature and corrosive environments is directly related to their balanced chromium and nickel content. The table below shows the typical chemical composition of both grades.
| Element | 310 (%) | 310S (%) |
| C | ≤0.25 | ≤0.08 |
| Mn | ≤2.0 | ≤2.0 |
| Si | ≤1.5 | ≤1.5 |
| P | ≤0.045 | ≤0.045 |
| S | ≤0.03 | ≤0.03 |
| Cr | 24–26 | 24–26 |
| Ni | 19–22 | 19–22 |
Mechanical & Physical Properties of SS 310 Pipes
The durability and performance of Stainless Steel 310 / 310S pipes are defined by their mechanical and physical characteristics. The table below provides standard reference values at room temperature.
| Property | Value |
| Density | 7.9 g/cm³ |
| Modulus of Elasticity | 200 GPa |
| Thermal Conductivity | 14.2 W/m·K (20°C) |
| Electrical Resistivity | 720 nΩ·m |
Weight, Pressure & Tolerances of ASTM A312 TP310 Pipe
Accurate weight calculation is essential for material planning, shipping, and cost estimation. The table below provides approximate weights of SS 310 seamless pipes per meter length based on outside diameter and wall thickness.
| Outside Diameter (mm) | Wall Thickness (mm) | Weight (kg/m) |
| 21.3 | 2.77 | 1.29 |
| 48.3 | 3.68 | 4.04 |
| 88.9 | 5.49 | 11.06 |
| 168.3 | 7.11 | 29.74 |
| 323.9 | 10.31 | 82.48 |
310 SS Pipe Pressure Rating Chart
The pressure rating of Stainless Steel 310 pipes depends on their schedule (wall thickness) and nominal size. The table below lists the approximate pressure capacities for Sch 40 and Sch 80 seamless pipes at ambient temperature.
| Nominal Pipe Size | Sch 40 Pressure Rating (psi) | Sch 80 Pressure Rating (psi) |
| 1” | 2220 | 2960 |
| 2” | 1950 | 2660 |
| 4” | 1620 | 2200 |
| 6” | 1490 | 2030 |
| 8” | 1370 | 1870 |
Heat Treatment & Welding of 310 Stainless Steel Pipe
Proper heat treatment and welding practices are critical to maintain the high-temperature strength and corrosion resistance of SS 310 / 310S pipes. The guidelines below explain the standard heat treatment process, weldability, recommended filler materials, and best practices to achieve reliable performance in demanding industrial applications.
Heat Treatment Guidelines for Alloy 310 / 310S Pipes
Solution Annealing
SS 310/310S pipes are typically solution annealed at 1040–1150°C followed by rapid quenching. This treatment restores corrosion resistance, improves ductility, and relieves stress from fabrication processes. It ensures the alloy retains stability for high-temperature service.
Non-Hardenable by Heat Treatment
Unlike martensitic steels, SS 310/310S cannot be hardened by heat treatment. Strength improvements can only be achieved through cold working methods. This property makes the alloy ideal for applications requiring consistent performance across wide temperature ranges.
Suitable Welding Electrodes & Filler Materials for SS 310 Pipe
Recommended Electrodes/Filler Wires
The preferred consumables are AWS E310-15 (electrode) and ER310 (filler wire), which match the base metal composition. These help retain corrosion and oxidation resistance in the weld zone. Nickel-based fillers can also be used for dissimilar welding.
Welding Practices
SS 310/310S pipes can be welded using TIG, MIG, or SMAW methods with proper shielding gases. Controlled heat input is important to minimize carbide precipitation and distortion. Post-weld cleaning ensures maximum corrosion performance.
Testing, Marking & Certification of SS 310 Seamless Pipe
To ensure quality, compliance, and global acceptance, every SS 310 / 310S seamless pipe is thoroughly tested, properly marked, and supplied with recognized certifications. This section outlines the marking details, certification reports and trade names under which these pipes are identified worldwide.
Marking on ASTM A312 TP310 Pipe
Each pipe is clearly marked with details such as Grade, OD, WT, Heat Number, Standard, and Manufacturer’s Logo. This ensures full traceability throughout the supply chain. Marking helps end users and inspectors quickly verify compliance with order specifications.
SS 310 Seamless Pipe Certification & Test Reports
All supplied pipes are delivered with EN 10204 3.1/3.2 Mill Test Certificates confirming chemical and mechanical test results. Additional reports include PMI, IGC, Hydrostatic, Eddy Current, and Radiography tests depending on project requirements. This documentation guarantees quality assurance for international projects.
Other Trade Names of Stainless Steel 310 Pipe
SS 310 pipes are also referred to under different names in global markets, such as Inox 310 Pipe, Alloy 310 Pipe, UNS S31000 / S31008 Pipe. These alternate names allow buyers to cross-reference specifications across ASTM, ASME, DIN, and other standards.
Price List & Stock Availability of SS 310 Pipe in India
At Stellar Alloys, we maintain a large ready stock of Stainless Steel 310 / 310S seamless and welded pipes to meet urgent project requirements across India and international markets. Our inventory covers a wide range of diameters, wall thicknesses, and schedules, including ½” NB to 24” NB in seamless pipes and up to 48” NB in welded and ERW forms.
We offer competitive prices in the Indian market due to our efficient sourcing, bulk procurement, and in-house testing facilities. Prices may vary depending on the pipe type (seamless or welded), size, thickness, finish (annealed, polished, pickled), and applicable standards (ASTM A312 / ASME SA312). Large project orders and long-term contracts are eligible for special pricing and faster delivery schedules.
Our stockist in Mumbai and other major industrial hubs are equipped to handle cut-to-length orders, custom machining, and export packaging. Every dispatch is accompanied by EN 10204 3.1/3.2 MTCs, test reports, and proper markings to meet international project documentation requirements.
For the latest SS 310 pipe price list in India, or to check stock availability for your specific size and schedule, you can request a custom quotation. Our team ensures quick response times, transparent pricing, and doorstep delivery across India and exports to 40+ countries.
Why Choose Stellar Alloys for 310 Stainless Stellar Alloys?
Selecting the right supplier for Stainless Steel 310 / 310S pipes and tubes is crucial for industries that demand reliability, consistency, and global compliance. Stellar Alloys combines decades of experience with certified manufacturing and strong export capabilities, making us a trusted partner for critical applications worldwide.
Over 25 years of global supply experience
Stellar Alloys has been serving critical industries like oil & gas, petrochemicals, and power generation for more than two decades. Our long-standing presence in the market highlights our reliability, technical expertise, and ability to handle both standard and custom orders.
ISO & PED-certified manufacturing
Our production facilities are accredited with ISO 9001, ISO 14001, and PED 2014/68/EU certifications, ensuring every pipe and tube meets stringent global standards. This gives buyers confidence in both material quality and environmental responsibility.
100% tested pipes with full traceability
Every batch of SS 310/310S pipes undergoes rigorous hydrostatic, PMI, IGC, ultrasonic, and radiography testing. Along with EN 10204 3.1/3.2 MTCs, we provide complete heat-to-heat traceability for project-critical documentation and compliance.
Export to 40+ countries
We have built a strong export network supplying stainless steel pipes and tubes to more than 40 countries worldwide. With dedicated logistics and packaging teams, we ensure safe, timely, and compliant deliveries to EPC contractors and industrial end-users.
Ready stock with fast dispatch
Our large inventory in multiple sizes, schedules, and grades allows us to fulfill urgent requirements without delay. Whether it’s bulk export or project-specific cut-to-length supply, our stockyards are equipped to dispatch materials quickly with proper markings.
Frequently Asked Questions About Stainless Steel 310 Pipe
SS 310 performs better in high-temperature service, while SS 304 is more economical for general use.
SS 310 has higher chromium and nickel, giving it greater heat resistance compared to 304 and 316 grades.
Yes, it can be welded with standard TIG/MIG methods using ER310 fillers for best results.
These pipes can handle continuous service up to 1100°C without losing strength.
310 has higher carbon for creep strength, while 310S has lower carbon for better weldability.
