Alloy G35,UNS N06035 Nickel Alloy by Gangsteel Group

 

Gangsteel Group is a leading global supplier of Alloy G35, also known as Hastelloy G35 or UNS N06035, offering premium Alloy G35 plate, Alloy G35 sheet, Hastelloy G35 pipe, Hastelloy G35 round bar, Hastelloy G35 tubing, and custom-fabricated components.

 Alloy G35 is a nickel-chromium-molybdenum alloy with very low silicon and carbon, designed for superior corrosion resistance in wet-process phosphoric acid and high-temperature environments, making it ideal for fertilizer and chemical processing industries.

This guide explores the Hastelloy G35 composition, G35 material properties, applications, and why Gangsteel is your trusted source for Alloy G35 plate, Hastelloy G35 pipe, round bar, and tubing at competitive Hastelloy G35 price.

 

1. What is Alloy G35?

 

Alloy G35(UNS N06035), or Hastelloy G-35, is a wrought nickel-based alloy developed by Haynes International, engineered for enhanced corrosion resistance in phosphoric acid and oxidizing environments. With high chromium and molybdenum, G35 material resists pitting and crevice corrosion, offering improved performance over Alloy G30 in high-temperature acid service. Its very low carbon content ensures weldability, making Alloy G35 plate ideal for welded structures in fertilizer production.

How Does Alloy G35 Compare to Alloy G30?

Alloy G35(UNS N06035) has lower silicon and carbon than Alloy G30, providing better resistance to intergranular corrosion after welding and improved performance in high-temperature phosphoric acid environments. Both alloys excel in phosphoric acid, but Alloy G35 is optimized for higher temperatures and oxidizing conditions.

 

2. Why Choose Gangsteel’s Alloy G35 Products?

 

  1. Superior Corrosion Resistance: G35 material excels in phosphoric acid and oxidizing acids, surpassing Alloy 400.
  2. High-Temperature Performance: Maintains strength up to 1900°F (1038°C), ideal for Alloy G35 plate in high-heat applications.
  3. Excellent Weldability: Very low carbon content ensures corrosion resistance in as-welded Alloy G35 sheet and tubing.
  4. Competitive Pricing: Hastelloy G35 price ranges from US $48-78 per kg (FOB), offering value for high-performance applications.
  5. Global Supply: Gangsteel delivers Alloy G35 plate, Hastelloy G35 round bar, and tubing worldwide with EN 10204 3.1/3.2 certification.

 

3. Execution Standards for Alloy G35

 

Gangsteel’s Alloy G35 products comply with international standards:

  1. ASTM B575: For Alloy G35 plate, sheet, and strip.
  2. ASTM B622: For seamless Hastelloy G35 pipe and tubing.
  3. ASTM B619: For welded Hastelloy G35 pipe.
  4. ASTM B574: For Hastelloy G35 round bar and rod.
  5. ASME SB-575/SB-622/SB-619: For pressure vessel and piping applications.
  6. DIN 2.4643: European standard for UNS N06035.

Note: Products are supplied with mill test certificates and tested per DNV, BV, or SGS standards, ensuring compliance with Hastelloy G35 chemical composition and G35 material properties.

 

4. Available Specifications and Product Categories

 

Gangsteel offers a wide range of Alloy G35 products tailored to UNS N06035 specifications:

4.1 Specifications

  1. Alloy G35 Plate:
    • Thickness: 0.5mm to 50mm
    • Width: 1000mm to 2500mm
    • Length: 2000mm to 12000mm
    • Finish: Hot-rolled, annealed, descaled
    • Applications: Fertilizer reactors, phosphoric acid processing
  2. Alloy G35 Sheet:
    • Thickness: 0.025mm to 4mm
    • Width: 500mm to 2000mm
    • Finish: Cold-rolled, bright annealed
    • Applications: Heat exchangers, chemical processing
  3. Hastelloy G35 Pipe:
    • Types: Seamless, welded
    • Outer Diameter: 0.5” to 8” (12.7mm to 203.2mm)
    • Wall Thickness: Sch 5S to Sch 160
    • Length: Up to 12m
    • Applications: Phosphoric acid piping, high-temperature systems
  4. Hastelloy G35 Tubing:
    • Outer Diameter: 6mm to 260mm
    • Wall Thickness: 0.5mm to 20mm
    • Finish: Seamless, welded, polished
    • Applications: Chemical processing, oil and gas
  5. Hastelloy G35 Round Bar:
    • Diameter: 6mm to 300mm
    • Length: Up to 6000mm
    • Finish: Hot-rolled, cold-drawn, centerless ground
    • Applications: Valves, pump shafts, fasteners
  6. Custom Components:
    • Types: Flanges, fittings, CNC-cut parts
    • Sizes: Per ASME B16.5 or custom tolerances (±0.05mm)
    • Applications: Chemical piping, acid service systems

4.2 Product Categories

  1. Flat Products: Alloy G35 plate and sheet for corrosion-resistant structures.
  2. Tubular Products: Hastelloy G35 pipe and tubing for fluid transport in aggressive environments.
  3. Bar Products: Hastelloy G35 round bar for machining into high-strength components.
  4. Custom Fabrication: CNC-machined parts, welded fittings, and flanges for tailored solutions.

Note: Custom sizes and finishes are available. Contact Gangsteel for bespoke Alloy G35 solutions.

 

5. Composition of Hastelloy G35

 

The Hastelloy G35 chemical composition is optimized for corrosion resistance, as per ASTM B575:

Element

Ni

Cr

Mo

Fe

Mn

Si

C

P

S

%

Bal.

32.25-34.25

7.6-9.0

≤2.0

≤0.5

≤0.05

≤0.015

≤0.04

≤0.03

Note: High chromium and low silicon/carbon enhance G35 material’s resistance to phosphoric acid and intergranular corrosion, making Alloy G35 plate superior to Alloy G30 in high-temperature acid service.

 

6. Material Properties of Alloy G35

 

  • Density: 8.22 g/cm³ (0.297 lb/in³), supporting lightweight Alloy G35 plate designs.
  • Melting Point: 1370-1400°C (2498-2552°F), suitable for high-temperature applications.
  • Hardness: ~88 HRB (annealed), contributing to wear resistance.
  • Thermal Conductivity: 10.0 W/m·K at 20°C, ideal for heat exchangers using Alloy G35 sheet.
  • Corrosion Resistance: Exceptional resistance to phosphoric acid and oxidizing acids, surpassing Alloy 625 in high-temperature acid environments.
  • Non-Magnetic: UNS N06035 is non-magnetic, ideal for sensitive applications.

 

7. Mechanical Properties of Alloy G35

 

The mechanical properties of G35 material ensure reliability for Alloy G35 plate, Hastelloy G35 pipe, and tubing, as per ASTM B575 (annealed condition):

Property

Value at 20°C

Value at 800°F (427°C)

Description

Yield Strength

350-420 MPa (51-61 ksi)

~210 MPa (30 ksi)

High strength for stress-intensive applications

Tensile Strength

700-850 MPa (102-123 ksi)

~610 MPa (88 ksi)

Ensures durability under pressure

Elongation

~40%

~55%

High ductility for fabrication

Hardness

~88 HRB

-

Supports wear resistance

Note: Properties vary with form and heat treatment. For detailed mechanical properties of Alloy G35 plate, contact Gangsteel for a datasheet.

 

8. Equivalent Materials and Standards

 

Alloy G35(UNS N06035) is comparable to other corrosion-resistant alloys:

Material

Standard

Description

Alloy G35

ASTM B575, UNS N06035

Nickel-chromium-molybdenum alloy

Alloy G30

UNS N06030

Excellent in phosphoric acid

Alloy C22

UNS N06022

Superior in oxidizing media

Alloy C276

UNS N10276

Excellent in reducing acids

Alloy C2000

UNS N06200

Versatile in mixed acids

Note: Alloy G35 plate excels in high-temperature phosphoric acid, outperforming Alloy 600 in chemical environments.

 

9. Applications of Alloy G35

 

  1. Fertilizer Production: Alloy G35 plate and Hastelloy G35 pipe for reactors handling wet-process phosphoric acid, complementing Alloy 617.
  2. Chemical Processing: Alloy G35 sheet for equipment exposed to oxidizing acids.
  3. Oil and Gas: Hastelloy G35 round bar for valves in corrosive environments.
  4. Pollution Control: Hastelloy G35 tubing for flue gas desulfurization systems.
  5. Pulp and Paper: Digesters leveraging G35 material’s corrosion resistance.

Note: Alloy G35 is optimized for high-temperature acid service, offering advantages over Alloy HX.

 

10. Hastelloy G35 Price

 

  • Alloy G35 Plate / Sheet: US $48-78 per kg (FOB), depending on thickness and order volume.
  • Hastelloy G35 Pipe / Tubing: US $52-82 per kg (FOB), based on diameter and schedule.
  • Hastelloy G35 Round Bar: US $50-80 per kg (FOB), varying with diameter and finish.

Note: Hastelloy G35 price reflects its high chromium content, comparable to Alloy G30. Contact Gangsteel for precise quotes.

 

11. Unique Features of Alloy G35

 

  • High-Temperature Acid Resistance: High chromium and low silicon/carbon outperform Alloy 690 in phosphoric acid at elevated temperatures.
  • Weldability: Low carbon content ensures corrosion resistance in as-welded conditions, unlike Alloy X-750.
  • Corrosion Resistance: Superior to Alloy 625 in high-temperature acid environments.
  • Diverse Forms: Available as Alloy G35 plate, Hastelloy G35 tubing, round bar, pipe, and CNC-cut parts.

 

12. Frequently Asked Questions (FAQ)

 

  1. What is the composition of Hastelloy G35?
    Hastelloy G35 chemical composition includes ~58% nickel, 32.25-34.25% chromium, 7.6-9.0% molybdenum, and ≤0.015% carbon, optimized for Alloy G35 plate corrosion resistance.
  2. What is the Hastelloy G35 price?
    Ranges from US $48-82 per kg (FOB) for Alloy G35 plate, Hastelloy G35 round bar, pipe, or tubing. Contact Gangsteel for quotes.
  3. Is UNS N06035 magnetic?
    No, UNS N06035 is non-magnetic, ideal for sensitive applications.
  4. What are the applications of Alloy G35 plate?
    Used in fertilizer production, chemical processing, and pollution control for handling phosphoric acid.
  5. How does Alloy G35 compare to Alloy G30?
    Alloy G35 excels in high-temperature phosphoric acid, while Alloy G30 is better for general phosphoric acid service.
  6. What standards govern Hastelloy G35 tubing?
    ASTM B622 (seamless) and ASTM B619 (welded), with UNS N06035 designation.
  7. Can I get a mechanical properties datasheet for G35 material?
    Contact Gangsteel for a PDF detailing tensile, yield, and corrosion data for Alloy G35 plate.

 

13. Why Gangsteel?

 

  1. Competitive Pricing: Hastelloy G35 price at US $48-82 per kg (FOB) for Alloy G35 plate, sheet, pipe, tubing, and round bars.
  2. Comprehensive Inventory: Wide range of Hastelloy G35 pipe, tubing, round bar, and custom components.
  3. Quality Assurance: EN 10204 3.1/3.2 MTCs and testing per DNV, BV, or SGS standards.
  4. Global Delivery: Serving markets in Saudi Arabia, UAE, India, and Europe with efficient logistics.
  5. Advanced Fabrication: CNC machining, TIG/MIG welding, and pickling for Alloy G35 components.

 

14. Contact Gangsteel

 

For inquiries about Alloy G35, Alloy G35 sheet, Hastelloy G35 pipe, Hastelloy G35 round bar, Hastelloy G35 tubing, or to request a quote for Hastelloy G35 price or a mechanical properties datasheet, contact Gangsteel Group’s sales team. Trust Gangsteel for high-quality G35 material tailored to your project’s needs, backed by expertise and reliability as leading Alloy G35 suppliers!

 

Other Products