Union ER 90S-B3 TIG Rods Importer, Stockist & Supplier Worldwide
Union ER 90S-B3 TIG Rods are low-alloy, creep-resistant TIG welding rods designed for welding 2.25Cr-1Mo steels TIG Rods and related heat-resistant materials. The product is classified to AWS A5.28 / SFA-5.28 ER90S-B3 TIG Rods and EN ISO 21952-A W CrMo2.
Shanti Metal Supply Corporation (SMSC) is an Importer, Stockist, Supplier & Worldwide Exporter of Union ER 90S-B3 TIG Rods, supplying welding consumables for power generation, boilers, pressure equipment, petrochemical, process and high-temperature industrial applications.
Union ER 90S-B3 TIG Rods Product Overview
Union ER 90S-B3 is a chromium-molybdenum alloy TIG rod developed for welding creep-resistant low-alloy steels. Its Cr-Mo weld-metal chemistry makes it suitable for elevated-temperature fabrication and repair applications where resistance to thermal exposure and creep is required.
The rod belongs to the low-alloy creep-resistant welding consumable family and is particularly relevant to 2.25Cr-1Mo steel systems. Typical applications include pressure-containing components, boilers, steam systems, process equipment and other high-temperature welded structures.
Key Characteristics of Union ER 90S-B3 TIG Rods
- Low-alloy chromium-molybdenum TIG welding rod.
- AWS A5.28 / SFA-5.28 ER90S-B3 classification.
- EN ISO 21952-A W CrMo2 classification.
- Designed for creep-resistant welding applications.
- Suitable for 2.25Cr-1Mo steel welding systems.
- Cr-Mo alloy composition for elevated-temperature service applications.
- Suitable for GTAW / TIG welding procedures.
- DC− welding current.
- Argon-based shielding gas, classification I1.
- Suitable for fabrication, maintenance and repair applications when qualified according to the applicable WPS/PQR.
Technical Specifications
| Property | Specification |
|---|---|
| Product | Union ER 90S-B3 TIG Rods |
| Product Type | Low-alloy creep-resistant TIG welding rod |
| Welding Process | GTAW / TIG |
| AWS Classification | A5.28 / SFA-5.28, ER90S-B3 |
| EN ISO Classification | 21952-A, W CrMo2 |
| Alloy System | Chromium-Molybdenum low-alloy steel |
| Current Type | DC− |
| Shielding Gas | I1 – inert gas, typically argon |
| Service Category | Creep-resistant / elevated-temperature applications |
Chemical Composition of Union ER 90S-B3 TIG Rods
The following values represent typical weld-metal analysis published for Union ER 90S-B3. Actual heat or batch chemistry should be confirmed against the manufacturer's certificate supplied with the material.
| Element | Typical Composition (wt. %) |
|---|---|
| Carbon (C) | 0.09 |
| Silicon (Si) | 0.55 |
| Manganese (Mn) | 0.60 |
| Chromium (Cr) | 2.55 |
| Molybdenum (Mo) | 1.05 |
Mechanical Properties of Union ER 90S-B3 TIG Rods
Typical all-weld-metal mechanical properties reported for Union ER 90S-B3 at 20°C are shown below. Values can vary according to welding conditions, heat treatment, shielding gas, test requirements and applicable qualification standards.
| Property | Typical Value | Minimum Value |
|---|---|---|
| Yield Strength | 540 MPa | ≥ 400 MPa |
| Tensile Strength | 620 MPa | ≥ 550 MPa |
| Elongation | 20% | ≥ 18% |
| Impact Strength at 20°C | 80 J | ≥ 47 J |
Compatible Base Materials
Union ER 90S-B3 is associated with welding applications involving 2.25Cr-1Mo low-alloy steels. Typical material examples include:
- ASTM A335 P22
- ASTM A387 Grade P22
- 10CrMo9-10
- 2.25Cr-1Mo pressure-vessel steels
- Related Cr-Mo boiler and pressure-equipment steels
- Compatible Cr-Mo steels specified by the applicable WPS
Final consumable selection should always be confirmed against the exact base-metal grade, applicable construction code and qualified welding procedure.
Applications of Union ER 90S-B3 TIG Rods
Union ER 90S-B3 TIG Rods are used in applications where creep-resistant Cr-Mo weld metal is required. Typical industries and applications include:
- Thermal power generation equipment
- Boiler fabrication and repair
- Steam piping and process piping
- Pressure vessels and pressure equipment
- Petrochemical plants
- Oil and gas process equipment
- Refinery equipment
- Heat exchangers and high-temperature components
- Cr-Mo steel fabrication
- Maintenance and repair welding
Why Use Union ER 90S-B3 TIG Rods?
Union ER 90S-B3 provides a controlled Cr-Mo alloying system for TIG welding of suitable creep-resistant low-alloy steels. The consumable is particularly useful where the welded joint must be compatible with 2.25Cr-1Mo materials and the associated high-temperature service requirements.
- Suitable for precision TIG welding.
- Designed for low-alloy Cr-Mo steel applications.
- Useful for creep-resistant service environments.
- Compatible with 2.25Cr-1Mo material systems.
- Provides controlled weld-metal chemistry.
- Suitable for fabrication and repair applications.
- Useful where controlled GTAW procedures and clean weld deposits are required.
Welding Parameters for Union ER 90S-B3 TIG Rods
Welding parameters should be established according to the applicable WPS and component requirements. The table below provides a general TIG process reference rather than a substitute for a qualified welding procedure.
| Parameter | Recommended Practice |
|---|---|
| Process | GTAW / TIG |
| Polarity | DCEN / DC− |
| Shielding Gas | Argon / I1 |
| Arc | Stable, controlled TIG arc |
| Filler Addition | Controlled manual filler-wire feeding |
| Surface Preparation | Clean, dry and free from oil, grease, rust and contamination |
| Preheat / Interpass | As specified by the applicable WPS and base-material requirement |
| PWHT | Where required by material specification, code or qualified WPS |
Available TIG Rod Sizes
Union ER 90S-B3 TIG Rods can be supplied in sizes suitable for different joint configurations and welding procedures. Availability may depend on the required diameter, packing, quantity and current manufacturer stock.
| Rod Diameter | Typical Application |
|---|---|
| 1.6 mm | Precision TIG welding and thinner sections |
| 2.0 mm | General TIG fabrication |
| 2.4 mm | Medium-section Cr-Mo welding applications |
| 3.2 mm | Higher deposition requirements and heavier sections |
Please contact SMSC with the required diameter and quantity so the currently available size and packaging can be confirmed.
Union ER 90S-B3 TIG Rods Importer, Stockist & Worldwide Exporter
Shanti Metal Supply Corporation (SMSC) supplies Union ER 90S-B3 TIG Rods as an importer, stockist, supplier and worldwide exporter. We support industrial customers requiring Cr-Mo welding consumables for fabrication, maintenance, repair and high-temperature applications.
SMSC can support requirements for individual projects, maintenance shutdowns, regular industrial consumption and bulk welding-consumable procurement.
Supply Across Gulf Countries
SMSC supplies welding consumables to customers across the Gulf region. Union ER 90S-B3 TIG Rods can be supplied for industrial fabrication, power, petrochemical, oil and gas, refinery and process-equipment requirements, subject to product availability and export documentation.
- United Arab Emirates (UAE)
- Saudi Arabia
- Qatar
- Kuwait
- Oman
- Bahrain
Union ER 90S-B3 TIG Rods Export to Indonesia & Malaysia
SMSC also supports international enquiries from Indonesia and Malaysia for Union ER 90S-B3 TIG Rods. Export supply can be arranged according to required rod diameter, quantity, packing, documentation and destination.
International customers can contact SMSC for product availability, technical requirements, commercial quantities and shipping information.
Why Choose SMSC for Union ER 90S-B3 TIG Rods?
- Importer & Stockist: Direct sourcing and stock-based supply support.
- Worldwide Export: Supply support for Gulf countries, Indonesia, Malaysia and other international destinations.
- Authentic Welding Consumables: Product selection based on specified manufacturer and classification requirements.
- Technical Product Support: Assistance with classification, grade identification, diameter and application requirements.
- Bulk Supply: Suitable for project, industrial and recurring requirements.
- Responsive Enquiry Handling: Quick support for product, quantity and export enquiries.
- Industrial Experience: Focus on welding consumables for demanding industrial applications.
Buying Guide for Union ER 90S-B3 TIG Rods
When purchasing Union ER 90S-B3 TIG Rods, customers should provide the following information to ensure correct product selection and quotation:
- Required product: Union ER 90S-B3.
- Required rod diameter.
- Required quantity.
- Base-metal grade or material specification.
- Application or welding process.
- Required certification or inspection documentation.
- Delivery destination.
- Required packing and shipping requirements.
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Frequently Asked Questions About Union ER 90S-B3 TIG Rods
What is Union ER 90S-B3 TIG Rod?
Union ER 90S-B3 is a low-alloy chromium-molybdenum TIG welding rod classified to AWS A5.28 / SFA-5.28 ER90S-B3 and EN ISO 21952-A W CrMo2. It is intended for creep-resistant welding applications.
What is the AWS classification of Union ER 90S-B3?
The AWS classification is A5.28 / SFA-5.28 ER90S-B3.
What is the EN ISO classification?
Union ER 90S-B3 is classified as EN ISO 21952-A W CrMo2.
Which materials are commonly welded with ER90S-B3?
ER90S-B3 is associated with 2.25Cr-1Mo materials, including commonly encountered grades such as P22 and 10CrMo9-10, subject to the applicable welding procedure and material specification.
What shielding gas is used with Union ER 90S-B3?
The product listing specifies shielding gas group I1, typically argon for TIG welding.
What polarity is used for Union ER 90S-B3 TIG welding?
Union ER 90S-B3 is specified for DC− current.
Is Union ER 90S-B3 suitable for high-temperature applications?
It is a creep-resistant Cr-Mo TIG rod intended for elevated-temperature welding applications. The actual service suitability must be established from the base material, design code, service conditions and qualified welding procedure.
Does SMSC export Union ER 90S-B3 TIG Rods?
Yes. SMSC supplies and exports Union ER 90S-B3 TIG Rods to Gulf countries, Indonesia, Malaysia and other international destinations, subject to availability and export requirements.
How can I request a quotation for Union ER 90S-B3?
Contact SMSC with the required rod diameter, quantity, delivery destination and any required certification or documentation. Our team can then provide availability and quotation details.