Description
Submerge Wire & Flux (Sorex Brand)– SF-30 x SW-309/309L
Submerged Arc Welding Wire and Flux (SF-30 x SW-309/309L)
Joining dissimilar metals—such as carbon steel structural members to austenitic stainless steel plates—or depositing corrosion-resistant overlays requires precise metallurgical control. The Submerged Arc Welding Wire and Flux (SF-30 x SW-309/309L) combination from Thermatech offers an industry-proven solution for heavy fabrication lines using Submerge Sorex technology.
Utilizing a high-purity Submerge Sorex SW-309/309L wire in conjunction with SF-30 neutral agglomerated flux ensures balanced alloy transfer into the weld pool. The Submerged Arc Welding Wire and Flux (SF-30 x SW-309/309L) system effectively combats iron dilution from the mild steel substrate, preventing brittle phase transformation and intergranular corrosion. Designed for continuous high-speed automated welding, this combination provides exceptional bead geometry, zero spatter, and radiographic soundness across pressure vessel linings, heat exchangers, and heavy industrial machinery fabrications.
Technical Advantages of Submerged Arc Welding Wire and Flux (SF-30 x SW-309/309L)
Engineered for code-compliant fabrication and non-destructive testing (NDT) standards, this product line offers key operational benefits:
- Dilution Control in Dissimilar Joints: High alloy reserves ($23\%\text{ Cr / }12\%\text{ Ni}$) maintain full corrosion resistance and crack immunity even when diluted with carbon steel.
- X-Ray Quality Deposit: Submerge Sorex wire purity and moisture-resistant flux prevent gas entrapment and slag inclusions, passing 100% radiographic inspection.
- Self-Detaching Slag Layer: The protective flux blanket contracts smoothly upon cooling, peeling away effortlessly to leave a bright, uniform stainless bead profile.
- High Deposition & Travel Speed: Submerged arc process maximizes thermal efficiency and deposition rates, significantly shortening cycle times on heavy structural plates.
DESCRIPTION :
SF-30 is an agglomerated flux adding proper contents of alloying element to maintain the stability
of the contents of ferrite in weld metal. It is designed for welding with stainless steel 309/309L
to gain characteristics of great crack and corrosion resistibility and mechanical property, but also good weldability
involved excellent slag removal, stable arc, smooth bead appearance and welding efficiency.
APPLICATIONS :
It is applied in submerged arc welding with stainless steel 309/309L.
NOTE ON USAGE :
- Use of low heat input to get the corrosion resistibility and mechanical properties on heat-affected zone.
- Rebake flux at 350°C for 1hours after opening use
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-30 x SW-309/309L)
Q: Why is Submerged Arc Welding Wire and Flux (SF-30 x SW-309/309L) recommended for dissimilar metal welding?
A: When joining mild steel to stainless steel, the weld pool absorbs iron from the carbon steel side. Using Submerged Arc Welding Wire and Flux (SF-30 x SW-309/309L) with a 309L Submerge Sorex wire provides higher Chromium and Nickel levels, ensuring the final weld remains ductile and crack-resistant despite dilution.
Q: How should SF-30 flux be prepared prior to welding with Submerge Sorex wire?
A: To eliminate atmospheric moisture and prevent porosity in the weld metal, re-bake the SF-30 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-30 x SW-309/309L
Submerged Arc Welding Wire and Flux (SF-30 x SW-309/309L)
Joining dissimilar metals—such as carbon steel structural members to austenitic stainless steel plates—or depositing corrosion-resistant overlays requires precise metallurgical control. The Submerged Arc Welding Wire and Flux (SF-30 x SW-309/309L) combination from Thermatech offers an industry-proven solution for heavy fabrication lines using Submerge Sorex technology.
Utilizing a high-purity Submerge Sorex SW-309/309L wire in conjunction with SF-30 neutral agglomerated flux ensures balanced alloy transfer into the weld pool. The Submerged Arc Welding Wire and Flux (SF-30 x SW-309/309L) system effectively combats iron dilution from the mild steel substrate, preventing brittle phase transformation and intergranular corrosion. Designed for continuous high-speed automated welding, this combination provides exceptional bead geometry, zero spatter, and radiographic soundness across pressure vessel linings, heat exchangers, and heavy industrial machinery fabrications.
Technical Advantages of Submerged Arc Welding Wire and Flux (SF-30 x SW-309/309L)
Engineered for code-compliant fabrication and non-destructive testing (NDT) standards, this product line offers key operational benefits:
- Dilution Control in Dissimilar Joints: High alloy reserves ($23\%\text{ Cr / }12\%\text{ Ni}$) maintain full corrosion resistance and crack immunity even when diluted with carbon steel.
- X-Ray Quality Deposit: Submerge Sorex wire purity and moisture-resistant flux prevent gas entrapment and slag inclusions, passing 100% radiographic inspection.
- Self-Detaching Slag Layer: The protective flux blanket contracts smoothly upon cooling, peeling away effortlessly to leave a bright, uniform stainless bead profile.
- High Deposition & Travel Speed: Submerged arc process maximizes thermal efficiency and deposition rates, significantly shortening cycle times on heavy structural plates.
DESCRIPTION :
SF-30 is an agglomerated flux adding proper contents of alloying element to maintain the stability
of the contents of ferrite in weld metal. It is designed for welding with stainless steel 309/309L
to gain characteristics of great crack and corrosion resistibility and mechanical property, but also good weldability
involved excellent slag removal, stable arc, smooth bead appearance and welding efficiency.APPLICATIONS :
It is applied in submerged arc welding with stainless steel 309/309L.NOTE ON USAGE :
- Use of low heat input to get the corrosion resistibility and mechanical properties on heat-affected zone.
- Rebake flux at 350°C for 1hours after opening use
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-30 x SW-309/309L)
Q: Why is Submerged Arc Welding Wire and Flux (SF-30 x SW-309/309L) recommended for dissimilar metal welding?
A: When joining mild steel to stainless steel, the weld pool absorbs iron from the carbon steel side. Using Submerged Arc Welding Wire and Flux (SF-30 x SW-309/309L) with a 309L Submerge Sorex wire provides higher Chromium and Nickel levels, ensuring the final weld remains ductile and crack-resistant despite dilution.
Q: How should SF-30 flux be prepared prior to welding with Submerge Sorex wire?
A: To eliminate atmospheric moisture and prevent porosity in the weld metal, re-bake the SF-30 flux at 300°C–350°C for 1 to 2 hours prior to loading it into the welding hopper.
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