1.6908 Nickel Alloy Forging Parts & Seamless Rolled Rings

Jiangyin Jiangnan Metal Co., Ltd. manufactures premium 1.6908 nickel alloy forging components for demanding industrial applications. Our ISO 9001 certified facility produces open-die forgings, seamless rolled rings, flanges, shafts, disks, sleeves, tubes, and specialized components to customer specifications. We serve global markets in chemical processing, offshore oil and gas, pressure vessel manufacturing, power generation, and heavy equipment industries.

Material Overview

1.6908 is an iron-nickel alloy developed for high-temperature and corrosive service environments. The material provides excellent strength retention across wide temperature ranges and demonstrates superior resistance to sulfuric acid and other aggressive chemical media. This composition makes it particularly valuable for equipment operating in petrochemical plants, chemical processing facilities, and subsea oil production systems.

Chemical Composition

Element	Range (%)	Element	Range (%)
Nickel (Ni)	Balance	Iron (Fe)	Max 5.0
Chromium (Cr)	20.0 - 23.0	Molybdenum (Mo)	8.0 - 10.0
Tungsten (W)	3.0 - 4.0	Aluminum (Al)	0.5 - 1.5
Titanium (Ti)	2.0 - 2.5	Cobalt (Co)	Max 2.0
Manganese (Mn)	Max 1.0	Carbon (C)	Max 0.10
Silicon (Si)	Max 1.0	Boron (B)	0.006 - 0.015

Mechanical Properties (As Forged)

Property	Typical Value	Unit
Tensile Strength	1240 - 1380	MPa
Yield Strength (0.2% offset)	970 - 1100	MPa
Elongation	12 - 18	%
Reduction of Area	Min 8	%
Density	8.8	g/cm³
Melting Point	1370 - 1400	°C

Industrial Applications

Pressure Vessel & Heat Exchanger Industry

Forged flanges and tube sheets for high-pressure vessels operating in corrosive chemical environments
Seamless rolled rings for shell and tube heat exchangers in petrochemical refineries
Forged tube sheets for plate fin and spiral wound heat recovery equipment
Air receiver bodies and pressure tank components for industrial gas storage

Chemical Processing & Pumping Systems

Forging shafts for centrifugal and plunger pumps handling sulfuric acid and caustic solutions
Pump housing and impeller components for aggressive fluid transfer applications
Forged valve bodies, stems, and seat rings for chemical isolation valves
Nozzle forgings and connection flanges for reactor vessel piping systems

Offshore & Subsea Oil Production

Forged bushings and sleeves for subsea wellhead assembly components
Forged rings for Christmas tree valves and flow control equipment
Deepwater equipment components rated for extreme pressure and seawater exposure
Flexible pipe connector rings and expansion joint components

Power Generation & Rotating Equipment

Turbine rotor forgings and compressor stage components
Generator shaft forgings and bearing housing components
Gas turbine blade roots and nozzle guide vane forgings
Gear blank forgings for industrial speed reducers and power transmission systems

Industrial Processing & Heavy Equipment

Forging rolls and grinding media for cement mills and mineral processing plants
Eccentric shaft and crankshaft forgings for sugar mill equipment
Conveyor roll forgings for papermaking and wood processing industries
Manifold blocks and valve adapter forgings for process piping systems

Manufacturing Capabilities

Open-die forging capacity for parts up to 50+ metric tons
Closed-die forging for repeatable parts with tight dimensional tolerance
Seamless rolled ring production in diameters from 100mm to 3000mm
Controlled heating and cooling processes to ensure material property requirements
Rough and finish machining services in-house or to customer specification
Heat treatment and stress relief per ASTM, EN, or customer requirements
Non-destructive testing including ultrasonic inspection to EN 10228-3 and ASME A388
Full material traceability and third-party certification to EN 10204-3.1 and 3.2

Quality Assurance & Standards

Certifications and Compliance

ISO 9001:2015 Quality Management System certification
EN 10228-3 Ultrasonic testing and material inspection procedures
ASME A388 Ultrasonic examination for forgings and castings
PED 2014/68/EU Pressure Equipment Directive compliance for European markets
EN 10204-3.1 Supplier self-certification for material analysis and testing
EN 10204-3.2 Third-party independent certification for critical applications
ASTM standards compliance for chemical composition and mechanical properties

Ordering Information

Submit detailed engineering drawings with dimensional specifications and tolerances
Specify material grade, mechanical property requirements, and testing standards
Indicate heat treat requirements and final dimensional specifications
Confirm quantity and delivery schedule requirements
Quotation includes material cost, forging labor, heat treatment, testing, and certification
Lead times typically 4-8 weeks depending on part complexity and order size
Minimum order quantities are flexible depending on production scheduling

Why Jiangnan Metal

Over 15 years of experience manufacturing nickel alloy and specialty steel forgings
ISO 9001 certification ensures consistent quality and process control
Dedicated engineering team capable of design optimization and problem-solving
In-house machining, heat treatment, and quality testing reduce lead times
Global supply chain with competitive pricing for domestic and export markets
Experience with international projects and complex technical requirements
Fast quotation turnaround and responsive customer communication
Full traceability and material certification documentation

Request a Quotation

To obtain pricing and lead time for 1.6908 forging parts, forward your engineering drawings and material requirements to our sales team. We can typically provide a quotation within one business day for standard applications. Contact us with your project specifications for immediate assistance.

Email: sales@steelforgepieces.com
Phone: +86 189-2135-9659