E 2209-15

Name: E 2209-15
Brand: SHREE KAILAJI ALLOYS PVT. LTD.
Price: 200.0 INR
Availability: InStock

Price 200.0 INR/ Piece

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MOQ : 100 Kilograms

E 2209-15 Specification

Material
NICKEL ALLOYS

Usage
WELIDNG

Diameter
2.5 mm, 3.15 mm, 4.0 mm, 5.0 mm

Length
350 mm; 450 mm

Opening Pattern
Rutile, heavy coated

Voltage
Open Circuit Voltage (OCV) 70 V min.

Welding Current
70-130 A (depending on diameter)

Color
GREY

Working Temperature
Ambient to moderate preheat, as needed (typically 100C max for thick sections)

Diffusible Hydrogen Content
< 5 ml/100g weld metal

Ferrite Content
Minimum 25% ferrite in weld metal

Tensile Strength
> 630 MPa

Recommended Polarity
AC / DCEP (Reverse Polarity)

Application
Welding duplex stainless steel and dissimilar joints

Elongation
> 25%

AWS Specification
AWS A5.4 E2209-15

Standards
IS 5206 / EN ISO 3581-B

Packaging
5 kg and 10 kg hermetically sealed packets

Shelf Life
12 months in dry storage

Impact Value
47J at -20C minimum

Yield Strength
> 480 MPa

Recovery
Approximately 110%

E 2209-15 Trade Information

Minimum Order Quantity
100 Kilograms

Delivery Time
3 Days

Packaging Details
BOX

Main Domestic Market
All India

About E 2209-15

E2209-15 describes a specific type of AWS basic-coated electrode used for welding duplex stainless steels, depositing an austenitic-ferritic weld metal with high strength, excellent resistance to pitting and stress corrosion cracking, and good impact toughness at low temperatures, ideal for applications in chemical and offshore industries.

Key Characteristics:

Type: Basic coated electrode (SMAW/Stick electrode).
Composition: Deposits a weld metal with 22% Chromium, 9% Nickel, 3% Molybdenum, and Nitrogen, creating a duplex (mixed) structure.
Performance: Offers high tensile strength, excellent ductility, smooth arc, spatter-free welding, and easy slag removal.
Corrosion Resistance: Very good resistance to pitting and chloride stress corrosion cracking.
Applications: Joining duplex stainless steels like 2205 (UNS S31803/S32205), especially in demanding environments like the chemical, petrochemical, and offshore industries.
Welding Conditions: Typically used with DCEP (Direct Current Electrode Positive) or AC, recommended for specific heat inputs to maintain phase balance.

In essence, E2209-15 provides a strong, corrosion-resistant weld for duplex stainless steels, combining high mechanical properties with superior corrosion resistance, making it a go-to choice for critical applications.

Versatile Application

E 2209-15 is engineered for welding duplex stainless steel as well as joining dissimilar metals, making it an optimal choice for various industrial and fabrication needs. Its adaptable performance is ideal for both repair work and new construction.

Superior Mechanical Properties

With a tensile strength of over 630 MPa and yield strength surpassing 480 MPa, E 2209-15 provides robust welds that maintain integrity under stress. The high elongation percentage ensures flexibility without compromising on durability.

Reliable Hydrogen Control

The electrode maintains diffusible hydrogen content well below 5 ml/100g, significantly reducing the risk of hydrogen-induced cracking. This characteristic is crucial for safety and performance in welded structures.

FAQ's of E 2209-15:

Q: How should E 2209-15 electrodes be stored to ensure optimal shelf life?

A: Store E 2209-15 electrodes in a dry environment at room temperature to maintain their 12-month shelf life. Keep them in their original hermetically sealed packaging until use to prevent moisture absorption.

Q: What benefits does the minimum 25% ferrite content offer in welds using E 2209-15?

A: The minimum 25% ferrite content in the weld metal ensures enhanced resistance to hot cracking, improved toughness, and balanced microstructure crucial for duplex stainless steel joints.

Q: When is preheating recommended during the welding process with E 2209-15?

A: Preheating is generally not necessary for thin sections. However, for thick workpieces, a moderate preheat temperature up to 100C may be employed to minimize thermal shock and ensure sound welds.

Q: Where can E 2209-15 electrodes be used effectively?

A: These electrodes are suitable for use in industries such as chemical processing, oil & gas, power plants, and fabrication projects requiring duplex stainless steel or dissimilar metal joints.

Q: What is the recommended process and polarity for welding with E 2209-15?

A: E 2209-15 is designed for arc welding processes and performs best with AC or DCEP (reverse polarity). Select the appropriate welding current according to the electrode diameter, varying from 70 to 130 A.

Q: How does E 2209-15 ensure safety and performance in welded components?

A: E 2209-15 delivers high impact strength (minimum 47J at -20C) and low diffusible hydrogen content, reducing the risk of weld-related failures such as cracking and ensuring robust, durable joints.

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