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347H Stainless Steel Pipe | Sheet | Bar

347H Stainless Steel Pipe | Sheet | Bar

SteelPRO Group is a leading manufacturer and supplier of 347H Stainless Steel Pipe, Sheet, and Bar manufacturer in China. We provide:

EN 1.4961 Stainless Steel Pipe, UNS S34709 Stainless Steel Sheet, 347H Seamless Stainless Steel Pipe, 347H Welded Stainless Steel Pipe, 347H Hot Rolled/Cold Rolled Stainless Steel Sheet, polished 347H Stainless Steel Pipe, brushed 347H Stainless Steel Sheet, annealed 347H Stainless Steel Bar. We offer precision cutting, bending, welding, polishing, annealing, and custom fabrication services.

Standard

ASME SA240, ASME SA276, ASME SA312, ASTM A240, ASTM A276, ASTM A312, EN 10216-5, JIS G4303

Grade

S34709, SUS347H, X7CrNiNb18-10 (1.4912), Z2CND17-11, Z2CND18-13, Z8CNNb18-10

Length

1000mm – 12000mm (39.37in – 472.44in), Customized

Sheet's Width

1000mm – 2000mm (39.37in – 78.74in), Customized

Diameter

Bar: 5mm – 200mm(0.20in – 7.87in), Customized, Pipe's OD: 6mm – 610mm(0.24in – 24in)

Thickness

Customized, Pipe's WT: 0.5mm – 30mm(0.02in – 1.18in), Sheet: 0.3mm – 50mm(0.012in – 1.97in)

Shape

Bar: Sqaure, Rectangular(Flat), Hexagonal, Customized, Pipe: Round, Square and Rectangular

Surface Finish

BA, Brushed, Customized, Matte, Passivated, Pickled, Polished, Sandblasted, Satin

Technique

Cold Drawn, Customized, Extrusion, Forging, Heat Treatment, Hot Rolled, Cold Rolled, Welding

Form

347 Stainless Steel Bar, 347 Stainless Steel Pipe, 347 Stainless Steel Sheet, 347H Stainless Steel Plate, 347H Stainless Steel Tubing, Bright 347H Stainless Steel Bar, Cold Rolled 347H Stainless Steel Sheet, Polished 347H Stainless Steel Pipe, Seamless 347H Stainless Steel Pipe

347H Stainless Steel Pipe | Sheet | Bar

347H Stainless Steel Pipe | Sheet | Bar

  • 347H Stainless Steel Pipe: A high-performance, round or seamless pipe made from stabilized austenitic stainless steel. It’s heat and corrosion resistant, ideal for high-temperature uses in oil, gas, and power industries.
  • 347H Stainless Steel Sheet: A flat, polished, or brushed sheet of austenitic stainless steel. It’s formable, weldable, and corrosion-resistant, perfect for heat exchangers and high-temperature applications in chemical and aerospace sectors.
  • 347H Stainless Steel Bar: A round, square, or hexagonal bar made from stabilized austenitic stainless steel. It’s heat resistant, corrosion resistant, and machinable, suited for precision parts in aerospace, automotive, and power industries.
Stainless Steel Sheet Product

Business Terms

Business Terms

Terms Specifications
Minimum Order Quantity: 5 Tons
Price: To be negotiated
Packaging Details:
As Requested
Delivery Time: Within 7-10 Working Days
Payment Terms: T/T, L/C, Credit Card
Supply Ability: 100000 Tons per month
Certification: RoHS, BIS, SABS, tisi, KS, JIS, ISO9001
Export To:

United States, India, Turkey, Canada, Vietnam, Germany, France, United Kingdom, Iran, Egypt, Brazil, Bangladesh, Philippines, Russia, Mexico, Ethiopia, Argentina, Hong Kong, Indonesia, Spain, Singapore, Thailand, Malaysia, Korea, etc.

Chemical Compositions

Chemical Compositions

ElementCarbon (C)Manganese (Mn)Phosphorus (P)Sulfur (S)Silicon (Si)Chromium (Cr)Nickel (Ni)Niobium (Nb)Nitrogen (N)Iron (Fe)
Percentage0.04-0.10%≤2.00%≤0.045%≤0.030%≤0.75%17.0-19.0%9.0-13.0%8xC-1.00%≤0.10%Balance

Mechanical Properties

Mechanical Properties

PropertyPipeSheetBar
Tensile Strength515 – 700 MPa (74,700 – 101,500 psi)515 – 690 MPa (74,700 – 100,000 psi)515 – 690 MPa (74,700 – 100,000 psi)
Yield Strength205 – 275 MPa (29,700 – 39,900 psi)205 – 310 MPa (29,700 – 45,000 psi)205 – 310 MPa (29,700 – 45,000 psi)
Elongation35% min40% min35% min
Hardness (Brinell)≤ 201 HB≤ 201 HB≤ 201 HB
Hardness (Rockwell B)≤ 95 HRB≤ 95 HRB≤ 95 HRB
Hardness (Vickers)150 – 210 HV150 – 210 HV150 – 210 HV
Modulus of Elasticity193 – 200 GPa (28 – 29 x 10^6 psi)193 – 200 GPa (28 – 29 x 10^6 psi)193 – 200 GPa (28 – 29 x 10^6 psi)

Heat Treatment

Heat Treatment

There are some stainless steel bars undergoing heat treatment.
  1. Annealing
    • Temperature: 1010°C – 1120°C (1850°F – 2050°F)
    • Process: Heat and cool slowly in air to relieve stress and improve ductility.
  2. Solution Annealing
    • Temperature: 1038°C – 1149°C (1900°F – 2100°F)
    • Process: Heat to dissolve carbides, then cool rapidly to enhance corrosion resistance.
  3. Stabilizing Annealing
    • Temperature: 870°C – 900°C (1600°F – 1650°F)
    • Process: Heat and air cool to stabilize carbides and prevent corrosion.
  4. Quenching, Tempering, Normalizing: Not used for 347H stainless steel due to its stable austenitic structure.

Characteristic

Characteristic

347H stainless steel pipe, sheet, and bar offer excellent heat resistance, corrosion resistance, and durability. Niobium stabilization prevents carbide precipitation, ensuring weldability with minimal cracking risk, making them ideal for demanding industrial applications.

  • Pipe: Best for high-strength, stable, and corrosion-resistant applications.
  • Sheet: Highly formable and low maintenance for versatile uses.
  • Bar: Easily machinable for precision components.

Our Service

Our Service

1.Welding

2.Metal Fabrication

3.CNC Machining

4.Lathe

5.Forming

6.OEM/ODM

7.Quenching 

8.Tempering

UT And Hardness Testing

UT And Hardness Testing

UT And Hardness Testing Info

Surface Finish

Surface Finish

Stainless Steel Sheet Plate Surface Finish

2B Surface

Stainless Steel Sheet Plate Surface Finish

2D Surface

BA Surface

6K Surface

Stainless Steel Sheet Plate Surface Finish

8K Surface

Stainless Steel Sheet Plate Surface Finish

HL Surface

Stainless Steel Sheet Plate Surface Finish

NO.1 Surface

Stainless Steel Sheet Plate Surface Finish

NO.4 Surface

Embossed Surface

Packing

Packing

  • Pipes: Wrapped, strapped, and capped for protection, with large orders crated or palletized.
  • Sheets: Stacked with protective layers, edge-protected, and palletized to prevent damage.
  • Bars: Bundled, capped, and palletized to ensure surface integrity.
  • Custom Packaging: Tailored solutions available to meet specific protection and handling needs.
After packaging, stainless steel plates are stacked with wooden strips.
sheet plate packing
Packing image of stainless steel tubing product
Stainless steel round bar packing image
Stainless Steel tubing pipe packing
Stainless Steel tubing pipe packing

Why Choose Us

Why Choose Us

Stainless steel pipe tubing rod bar
  • Top Quality: Superior 347H stainless steel for maximum durability.
  • Expertise: Decades of experience in high-performance applications.
  • Custom Fit: Tailored solutions to meet your exact needs.
  • Reliable Supply: On-time delivery, every time.
  • Competitive Pricing: High quality at a fair price.
  • Dedicated Support: Expert assistance whenever you need it.
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