ASTM A312 TP347H Stainless Steel Pipe Manufacturer, Suppliers, and Exporters in India
Mcneil Instrument is a leading manufacturer, supplier, and exporter of Stainless Steel 347H Seamless Pipe and ASME SA 312 TP 347H Welded Pipe in India. ASTM A312 Gr Tp347h, produced by Mcneil Instrument, is an austenitic stainless steel known for its corrosion resistant properties due to its chromium and nickel content. The SS 347H Seamless Pipe material boasts higher carbon content for added toughness, although it may be slightly less strong compared to its low-carbon counterpart. To address this, columbium is incorporated into the A312 Tp347h material.
This alloy composition renders the material highly resistant to oxidizing agents, making it suitable for applications operating at high temperatures with a high risk of oxidization. Despite its high carbon content, the SA 312 Tp 347h material exhibits excellent resistance to intergranular corrosion. The cold-drawn nature of SS 347H Seamless Pipe material precludes hardening via heat treatment, but it can be hardened through cold working. Moreover, the material is readily weldable, offering versatility in various applications.
A Closer Look at Uns s34709 Grade 347h Square Pipe
Mcneil Instrument is a prominent manufacturer, supplier, and exporter offering various shapes of pipes, including SS 347H Square Pipe, Stainless Steel 347H Seamless Pipe, and TP347H Stainless Steel Pipe, suitable for structural applications due to their enhanced strength. Our inventory includes 347H Welded Pipe in diverse shapes to cater to different needs. Among these, the Grade 347H Stainless Steel Round Pipe is widely utilized in heat exchangers, water filtration, aerospace, boat rails, and various other industrial applications. Notably, the AISI 347H Annealed Stainless Steel Welded Pipe exhibits superior strength and durability. All our products adhere to international standards and undergo rigorous quality testing. Feel free to reach out to us with your inquiries.
TP347H Stainless Steel Pipe Sizes Available
TP347H Stainless Steel Seamless Pipes
Sizes: 6NB – 1200NB
Outside Dia.: 1/8″ – 12″ NPS
Thickness : 0.6 – 12.7 mm
Length: Single, Double Random & Cut Length
TP347H Stainless Steel Erw / Welded Pipes
Sizes: 1/8” – 36” NB, 1/4” – 36” OD
Outside Dia.: 6.35 – 114.3 mm
Thickness : 0.8 – 12.7 mm
Length: up to 26 Meters
Specification of Stainless Steel 347/347H Seamless Welded Pipes
| Specification | Details |
| Stainless Steel Pipe Specification | ASTM A312, A358 / ASME SA312, SA358 |
| Pipe Size | 1/8” NB to 24” NB, 1/4” OD to 24” OD sizes |
| Thickness Range | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Type | Seamless / ERW / Welded / Fabricated Pipes |
| Form | Round, Square, Rectangular, Oval, Hydraulic Etc |
| Length | Single Random, Double Random & Required Length |
| End | Plain End, Beveled End, Treaded |
| End Protection | Plastic Caps |
| Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements |
| Delivery Condition | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| Inspection, Test Reports | Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports |
| Packing | Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests |
| Specials | Sizes and Specifications other than above can be manufactured on request |
What is the difference between 347 and 347H stainless steel?
| Aspect | 347 Stainless Steel | 347H Stainless Steel |
| Carbon Content | Lower carbon content, typically around 0.04% max | Higher carbon content, typically around 0.04% to 0.10% |
| Corrosion Resistance | Excellent resistance to intergranular corrosion | Similar corrosion resistance, but better at high temperatures |
| Strength at High Temp. | Good strength up to 800°C (1472°F) | Improved strength at elevated temperatures |
| Heat Resistance | Suitable for high temperature applications | Better suited for prolonged high-temperature conditions |
| Stabilization | Stabilized with columbium (niobium) | Stabilized with higher carbon content for enhanced stability |
| Weldability | Easier to weld with less risk of carbide precipitation | Slightly more challenging to weld due to higher carbon |
| Applications | Used in chemical, petrochemical, and aerospace industries | Preferred for boiler, furnace, and pressure vessel applications |
ASTM A312 TP47H Specification Chart
| ASTM / ASME Name | ASTM A312 / ASTM SA312 |
| ANSI / ASME Standard | ANSI/ASME B36.19M, ANSI/ASME B36.10M |
| Available Forms and Types | Square, Hex, Round, Rectangle, Hydraulic, Honed |
| Frequently Used | Fabricated, 100% X Ray Welded, ERW, Seamless, CDW, Welded |
| Pipe End Finish | Beveled End, Plain End, Treaded |
| Delivery Condition | Cold Drawn, Polished, Bright Annealed, Annealed and Pickled |
| Surface Coating and Finish | 2B, No.4, No.1, No.8 Mirror Finish or custom Finish as per customer Requirements |
| Pipe Wall Thickness | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Industrial Value Added Services | Export Packaging, Threading, Threading, Non Beveling, Customer Tagging/ Marking, Destructive, Grooving, Export Documentation, Ultrasonic Testing, Machining, Cutting, Destructive, MTR’s Available, Material testing, Color Coding, Polishing |
| Marking on AISI 347H Pipes |
Marked Pipe Sample: ANSI B36.19 ASTM A312 TP347H 12″ NB SCH 40S SEAMLESS HEAT NO. XXXX |
Why Is 347H SS Used for Chemical Processing?
Mcneil Instrument utilizes grade 347 stainless steel or SS 347H Seamless Pipe for chemical processing due to its specific properties tailored for such demanding environments. Grade 347, a modified version of 304 stainless steel, is designed for intermittent exposure to temperatures exceeding 800 degrees Celsius. It shares similarities with grade 321 in some mechanical aspects but incorporates columbium in its composition, enhancing its corrosion resistance to most corrosive media under medium to high temperatures.
With a minimum yield strength of 205MPa and a minimum tensile strength of 515MPa, grade 347 stainless steel can withstand high pressures at temperatures above 850 degrees Celsius, crucial for the rigorous conditions encountered in chemical processing. Moreover, its superior elongation and high hardness contribute to its durability and reliability in such environments.
Unlike its counterpart SS 347H Seamless Pipe, which is prone to intergranular corrosion above 850°F, grade 347 stainless steel features higher carbon content and enhanced heat resistance, enabling it to perform consistently within this temperature range.
The combination of its pressure containment capabilities, strength, hardness, heat resistance, and corrosion resistance makes grade 347 stainless steel an ideal choice for chemical processing applications. Additionally, these properties render it suitable for various other high-corrosion, high-heat environments, including boiler tubes and casings, radiant superheaters, heat exchanger tubes, and aircraft exhaust stacks. Within Mcneil Instrument, this material serves as a cornerstone for ensuring the integrity and longevity of critical components essential for efficient and reliable chemical processing operations.
As a leading ASTM A312 TP347H Stainless Steel Pipe Manufacturer, ASTM A312 TP347H Stainless Steel Pipe Supplier, ASTM A312 TP347H Stainless Steel Pipe Exporter in India provide a best quality of TP347H Stainless Steel Pipe or ASME SA 312 TP 347H Welded Pipe in India.
ASTM A312 347H Stainless Steel Pipe Price
Stainless Steel 347H Pipe for sale
| ASTM A312 TP347H Exhaust Pipe | TP 347H Stainless Steel DIN 1.4961 Electropolished Pipe |
| A312 TP347H Schedule 40 Pipe | ASTM A312 SS 347H Threaded Pipe |
| SA 312 TP 347H 3 Inch Pipe | Austenitic Stainless Steel 347H Water Pipe |
| A312 GR TP347H Square Pipe Price | SS UNS S34709 Seamless Pipe |
| A312 TP 347H Round Pipe | Stainless Steel UNS S34709 Hollow Pipe |
| TP 347H Stainless Steel Box Pipe | werkstoff nr. 1.4961 Stainless Steel 347H Schedule 80 Pipe |
| SA312 347H Stainless Steel Polished Pipe | ASTM A312 GR TP347H Schedule 10 Pipe |
| ASTM A312 GR TP347H Dairy Pipe | A312 Stainless Steel 347H Rectangular Pipe |
| A312 Stainless Steel 347H Erw Pipe | ASTM A 312 TP 347H Stainless Steel C Class Pipe |
ASTM A312 TP347H Mechanical Behaviour
| SUS | Tensile Strength minimum (MPa) | Yield Strength 0.2% Proof minimum (MPa) | Elongation minimum (% in 50mm) | Hardness | |
| Rockwell B (HR B) maximum | Brinell (HB) maximum | ||||
| 347H | 515 | 205 | 40 | 92 | 201 |
A312 TP347H Composition Table
| AISI | Ni | Mn | Si | S | C | Cr | P | Mo | N | |
| TP 347H | min. | 9.0 | – | – | – | 00.04 | 17.0 | – | 3.00 | – |
| max. | 13.0 | 2.0 | 1.00 | 00.030 | 00.10 | 19.0 | 00.045 | 4.00 | – | |
ASTM A312 TP347H Pipe Material Equivalent
| MATERIAL | UNS | WERKSTOFF NR. |
| USA | GERMAN | |
| TP347H | S34709 | 1.4961 |
Mcneil Instrument’s SS 347/347H Pipes are Supplied and Exported to Various Industries:
Our Stainless Steel 347/347H Pipes & Tubes are used in a wide range of applications and various industries. Below are a few of them:
- Petrochemical Industry
- Oil and Gas Industry
- Chemical Industry
- Power Plant Industry
- Energy Industry
- Pharmaceuticals Industry
- Pulp & Paper Industry
- Food Processing Industry
- Aerospace Industry
- Refining Industry
Contact to Mcneil Instruments, a reputable name in the industry, delivers precision-engineered ASTM A312 TP347H stainless steel pipes, catering to diverse industrial requirements. As a leading manufacturer, supplier, and exporter based in India, Mcneil Instruments ensures good quality and reliability in every ASTM A312 TP347H stainless steel pipe produced. With a comprehensive range including stainless steel 347H seamless pipes and ASME SA 312 TP 347H welded pipes, Mcneil Instruments guarantees exceptional performance and longevity, meeting stringent standards for seamless operation in various applications. Trust Mcneil Instruments for superior quality, prompt delivery, and unmatched customer satisfaction in the realm of stainless steel piping solutions.