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Brand: Böhler Welding
Böhler Union S 1 CrMo 2 EB3R 2.25Cr-1Mo Submerged Arc Wire
Description
2.25Cr-1Mo SAW wire for grade 22 hydrocrackers and reactors
Böhler Union S 1 CrMo 2 is a copper-coated solid wire for submerged arc welding of creep-resistant 2.25 % Cr – 1 % Mo steel (grade 22) in the petrochemical industry, with hydrocrackers named on the data sheet. It is classified AWS A5.23 / SFA-5.23 EB3R and EN ISO 24598-A S S CrMo2. The typical wire carries an X-factor (Bruscato) below 10, a measure of the trace elements that cause temper embrittlement, which is why wires of this type are chosen for thick-wall reactors that run hot in hydrogen service.
Technical specifications
| Parameter | Specification |
|---|---|
| Product type | SAW wire, low alloyed, creep resistant, copper coated |
| AWS classification | A5.23 / SFA-5.23 EB3R |
| EN ISO classification | 24598-A S S CrMo2 |
| Typical wire analysis, wt % | C 0.12; Si 0.08; Mn 0.55; Cr 2.5; Mo 1.0; X-factor below 10 |
| Base materials (EN) | 1.7380 10CrMo9-10; 1.7276 10CrMo11; 1.7281 16CrMo9-3; 1.7383 11CrMo9-10; 1.7379 G17CrMo9-10; 1.7382 G19CrMo9-10 |
| Base materials (ASTM) | A 182 Gr. F22; A 213 Gr. T22; A 234 Gr. WP22; A 335 Gr. P22; A 336 Gr. F22; A 426 Gr. CP22 |
| Diameters, mm (global data sheet) | 1.0; 1.6; 2.0; 2.5; 3.0; 4.0; 5.0 |
| Recommended SAW fluxes (Böhler) | UV 305, UV 420 TT, UV 420 TT-LH, UV 420 TTR, UV 420 TTR-C, UV 420 TTR-W |
| Approvals on data sheet | None listed |
Flux pairing and welding practice
Of the fluxes Böhler lists, is the one its own data sheet recommends in particular with this wire on AC for hydrocracker welding, with phosphorus pick-up limited to +0.004 %. The data sheet for the wire itself gives no mechanical values, because they depend on the flux, so ask for the all-weld-metal and step-cooling results from the certificate for your lot. For 1.25Cr-0.5Mo steels use
.| Related Böhler SAW wire | AWS / EN ISO class | Typical steel |
|---|---|---|
| Union S 2 CrMo | EB2R / S S CrMo1 | 1.25Cr-0.5Mo boiler and vessel steel |
| Union S 3 NiMo 1 | EF3 / S3Ni1Mo | Fine-grained steels, Ni-Mo wire |
| Thermanit MTS 3 LNi | EB91 / S S ZCrMo91 | P91 creep-resistant steel |
Storage and wire handling
Copper-coated SAW wire protects itself from rust only while it stays dry and clean. Keep spools and coils in their original packing until use, store them off the floor in a dry room, and do not leave an opened spool on the machine overnight in humid conditions. Surface rust and dust shorten contact tip life, disturb feeding and add hydrogen to the weld. Before ordering, confirm the diameter, spool or coil type and the certificate level (for example EN 10204 type 3.1) that your project requires.
Documents and quotation
The Böhler Welding data sheet for Union S 1 CrMo 2 (global edition, 02/2022) is attached. See the SAW Wire category for further grades. For a quotation, send diameter, packaging, quantity, flux and any step-cooling requirement.
Datasheets & Documents
- Datasheet Böhler Welding Union S 1 CrMo 2 data sheet (global edition, 02/2022) Download
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About brand
Böhler Welding is the welding consumables brand of voestalpine Böhler Welding, part of the voestalpine group, with a portfolio that covers stick electrodes, TIG rods, solid wires, gas-shielded and self-shielded flux-cored wires and submerged-arc wires and fluxes. The company states more than 100 years of experience. Seven Star LLC, an independent supplier in Muscat, lists Böhler Welding consumables and welding machines, including pipeline electrodes, and sources Böhler Welding consumables for fabricators and pipeline contractors.
Böhler Welding product groups
Beyond the consumables above, Böhler Welding lists strip cladding, wire arc additive manufacturing, metal powders, arc spraying cored wires, ceramic weld backing, brazing consumables and welding automation such as orbital welding and collaborative robots. The pipeline range includes cellulosic FOX CEL electrodes and basic vertical-down FOX BVD electrodes for large-diameter line pipe.
Ordering Böhler Welding consumables: what we need
Give the product name, the AWS or EN classification, the diameter and length, and the packaging you need. For pipeline electrodes also state the pipe grade, wall thickness, welding position and whether sour-service test values are required, because the Böhler Welding data sheets note that some test values are available on request.
Related products
Frequently Asked Questions
What is the classification of Union S 1 CrMo 2?
AWS A5.23 EB3R and EN ISO 24598-A S S CrMo2.
Which steel does it weld?
Creep-resistant 2.25Cr-1Mo steel (grade 22), for example hydrocrackers.
What is the typical Cr and Mo content?
About 2.5 % Cr and 1.0 % Mo.
What X-factor is listed?
Below 10.
Which fluxes does Böhler list?
UV 305, UV 420 TT, UV 420 TT-LH, UV 420 TTR, UV 420 TTR-C and UV 420 TTR-W.
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