Description
Submerge Wire & Flux (Sorex Brand)– SF-33 x SW-2209
Submerged Arc Welding Wire and Flux (SF-33 x SW-2209)
Joining heavy-section duplex stainless steel components in chemical processing plants, offshore oil platforms, paper mills, and desalination facilities demands filler metals engineered for extreme conditions. The Submerged Arc Welding Wire and Flux (SF-33 x SW-2209) system from Thermatech offers exceptional mechanical strength and corrosion protection under continuous submerge wire operations.
Using a high-purity submerge wire paired with the SF-33 agglomerated flux ensures precise alloy transfer of Chromium ($Cr$), Nickel ($Ni$), Molybdenum ($Mo$), and Nitrogen ($N$). Submerged Arc Welding Wire and Flux (SF-33 x SW-2209) prevents hot cracking during multi-pass welding and maintains the critical 40–60% Ferrite-Austenite phase balance in the weld deposit. The dense flux blanket prevents atmospheric contamination, yielding smooth, spatter-free weld profiles with high Pitting Resistance Equivalent Numbers (PREN).
Technical Advantages of Submerged Arc Welding Wire and Flux (SF-33 x SW-2209)
Engineered for automated fabrication lines and code-compliant heavy engineering projects, this product delivers distinct operational advantages:
- Optimal Metallurgy for Duplex Stainless Steel: Maintains high mechanical toughness and ductility while resisting pitting corrosion in aggressive acidic and saltwater environments.
- Radiographic Quality Weld Deposit: High-purity submerge wire chemistry prevents gas entrapment and porosity, ensuring 100% compliance under X-ray and ultrasonic non-destructive testing (NDT).
- High Travel Speed & Deposition: Submerged arc process maximizes heat efficiency and deposition rates, significantly reducing welding time on thick duplex plates.
- Easy Slag Detachability: The slag layer contracts evenly upon cooling, peeling away effortlessly to leave a clean, bright stainless bead profile with minimal post-weld cleanup.
DESCRIPTION :
SF-33 is a basic agglomerated flux for the submerged arc welding of high-alloyed CrNiMo steel
such as duplex stainless steel. While welded with SW-2209, SF-33 can provide great corrosion resistance and crack
resistance. Good bead appearance, easy slag removal and excellent mechnical property can be obtained.
APPLICATIONS :
It is applied in submerged arc welding with 22%Cr duplex stainless steels such as UNS S31803 / Alloy 2205.
NOTE ON USAGE :
- Use of lower current during the first pass welding so as to avoid the cracking
- Rebake flux at 350°C for 1hours after opening use
- Appropriate new flux is required to add with the recycling used flux for maintaining the welding quality
TYPICAL CHEMICAL COMPOSITION OF WELD METAL (wt%) :
TYPICAL MECHANICAL PROPERTIES OF WELD METAL :
Contact Us & Inquiries:
- 🌏 Website: https://thermal-mech.com
- 📩 FB Inbox: m.me/thermalmech
- ✅ LINE OA: @thermalmechanics
- 📧 Email: sales@thermal-mech.com
- ☎️ Tel: 02-759-4795
FAQ: Frequently Asked Questions About Submerged Arc Welding Wire and Flux (SF-33 x SW-2209)
Q: Why is Submerged Arc Welding Wire and Flux (SF-33 x SW-2209) necessary for duplex stainless steel applications?
A: Duplex stainless steels (such as 2205 / UNS S31803) require strict control over chemical balance and cooling rates to maintain their corrosion-resistant microstructure. Using Submerged Arc Welding Wire and Flux (SF-33 x SW-2209) with a matched duplex submerge wire ensures that the weld metal matches the parent material in both high tensile strength and pitting corrosion resistance.
Q: How should the SF-33 flux be prepared before beginning submerge wire welding?
A: To eliminate ambient moisture and prevent hydrogen-induced cracking or porosity in the weld deposit, re-bake the SF-33 flux at 300°C–350°C for 1 to 2 hours prior to loading it into the welding hopper.
- Description
-
Submerge Wire & Flux (Sorex Brand)– SF-33 x SW-2209
Submerged Arc Welding Wire and Flux (SF-33 x SW-2209)
Joining heavy-section duplex stainless steel components in chemical processing plants, offshore oil platforms, paper mills, and desalination facilities demands filler metals engineered for extreme conditions. The Submerged Arc Welding Wire and Flux (SF-33 x SW-2209) system from Thermatech offers exceptional mechanical strength and corrosion protection under continuous submerge wire operations.
Using a high-purity submerge wire paired with the SF-33 agglomerated flux ensures precise alloy transfer of Chromium ($Cr$), Nickel ($Ni$), Molybdenum ($Mo$), and Nitrogen ($N$). Submerged Arc Welding Wire and Flux (SF-33 x SW-2209) prevents hot cracking during multi-pass welding and maintains the critical 40–60% Ferrite-Austenite phase balance in the weld deposit. The dense flux blanket prevents atmospheric contamination, yielding smooth, spatter-free weld profiles with high Pitting Resistance Equivalent Numbers (PREN).
Technical Advantages of Submerged Arc Welding Wire and Flux (SF-33 x SW-2209)
Engineered for automated fabrication lines and code-compliant heavy engineering projects, this product delivers distinct operational advantages:
- Optimal Metallurgy for Duplex Stainless Steel: Maintains high mechanical toughness and ductility while resisting pitting corrosion in aggressive acidic and saltwater environments.
- Radiographic Quality Weld Deposit: High-purity submerge wire chemistry prevents gas entrapment and porosity, ensuring 100% compliance under X-ray and ultrasonic non-destructive testing (NDT).
- High Travel Speed & Deposition: Submerged arc process maximizes heat efficiency and deposition rates, significantly reducing welding time on thick duplex plates.
- Easy Slag Detachability: The slag layer contracts evenly upon cooling, peeling away effortlessly to leave a clean, bright stainless bead profile with minimal post-weld cleanup.
DESCRIPTION :
SF-33 is a basic agglomerated flux for the submerged arc welding of high-alloyed CrNiMo steel
such as duplex stainless steel. While welded with SW-2209, SF-33 can provide great corrosion resistance and crack
resistance. Good bead appearance, easy slag removal and excellent mechnical property can be obtained.APPLICATIONS :
It is applied in submerged arc welding with 22%Cr duplex stainless steels such as UNS S31803 / Alloy 2205.NOTE ON USAGE :
- Use of lower current during the first pass welding so as to avoid the cracking
- Rebake flux at 350°C for 1hours after opening use
- Appropriate new flux is required to add with the recycling used flux for maintaining the welding quality
TYPICAL CHEMICAL COMPOSITION OF WELD METAL (wt%) :
TYPICAL MECHANICAL PROPERTIES OF WELD METAL :
Contact Us & Inquiries:
- 🌏 Website: https://thermal-mech.com
- 📩 FB Inbox: m.me/thermalmech
- ✅ LINE OA: @thermalmechanics
- 📧 Email: sales@thermal-mech.com
- ☎️ Tel: 02-759-4795
FAQ: Frequently Asked Questions About Submerged Arc Welding Wire and Flux (SF-33 x SW-2209)
Q: Why is Submerged Arc Welding Wire and Flux (SF-33 x SW-2209) necessary for duplex stainless steel applications?
A: Duplex stainless steels (such as 2205 / UNS S31803) require strict control over chemical balance and cooling rates to maintain their corrosion-resistant microstructure. Using Submerged Arc Welding Wire and Flux (SF-33 x SW-2209) with a matched duplex submerge wire ensures that the weld metal matches the parent material in both high tensile strength and pitting corrosion resistance.
Q: How should the SF-33 flux be prepared before beginning submerge wire welding?
A: To eliminate ambient moisture and prevent hydrogen-induced cracking or porosity in the weld deposit, re-bake the SF-33 flux at 300°C–350°C for 1 to 2 hours prior to loading it into the welding hopper.
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