SAW Welding Flux

HL-SJ501 Aluminum-Titanium Type Acidic Sintered Flux

SJ501 is an aluminum-titanium acidic sintered flux for low-carbon steel and selected low-alloy structural steel fabrication.

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HL-SJ501 Aluminum-Titanium Type Acidic Sintered Flux

Product Positioning

SJ501 is an aluminum-titanium acidic sintered flux for low-carbon steel and selected low-alloy structural steel fabrication.

BasicityApprox. 0.5-0.8
Particle size2.0-0.28 mm / 10-60 mesh
Flux typeImplementation Standard: GB/T36037

Suitable Applications

Shipbuilding
Boilers
Pressure vessels
Low-carbon steel
Low-alloy structural steel

Key Welding Performance Advantages

Excellent welding process performance
Strong resistance to porosity
Insensitive to slight rust and high-temperature oxide films
Good slag removal and weld appearance

Compatible Welding Wires

H08A
H08MnA
H08MnMoA

Typical Industries

Thin plate welding
Gas cylinders
Oxygen cylinders
Pressure vessel components

Handling

Bake flux at 300-350 deg C for 2 hours before use.
Remove rust, oil, moisture and other contaminants from the workpiece before welding.
Confirm final wire, steel grade and welding parameters through procedure testing.

Technical Reference

Typical technical indicators are provided for buyer screening. Final values should be confirmed with the latest technical data sheet and buyer procedure testing.

Implementation Standard: GB/T36037
Compliance Standard: GB/T5293
Equivalent AWS: F7A2-E18
DIN: BAR1MAO

Chemical Composition Table

Typical flux composition indicators. Confirm current data before purchase.

Item	Typical range
SiO2 + TiO2	25-35%
CaO + MgO	0%
Al2O3 + MnO	45-55%
FeO	0%
CaF2	3-10%
S	<= 0.03%
P	<= 0.03%

Mechanical Properties Table

Typical deposited metal results depend on welding wire, steel grade, heat input and approved welding procedure.

Property	Typical result
H08A tensile strength	415-550 MPa
H08A yield strength	>= 330 MPa
H08A elongation	>= 22%
H08A impact toughness	AKV -20 deg C >= 27 J
H08MnA tensile strength	480-650 MPa
H08MnA yield strength	>= 400 MPa
H08MnA elongation	>= 22%
H08MnA impact toughness	AKV -20 deg C >= 27 J

Packaging and Delivery Information

Commercial terms for quotation discussion

Quotation details are prepared according to product model, order quantity, destination port and technical requirements. No retail amounts are shown on the website.

25 kg bagsMOQ: 25 tonsTrade term: FOBPayment: T/TDelivery time: typically around 30 days depending on destination

Inquiry CTA

Need SJ501 flux for your welding line?

Contact Xavier Ma to request a quote, technical data sheet, free sample discussion or application matching support.

FAQ

Common buyer questions about SJ501

Is SJ501 suitable for my welding application?

Share your steel grade, welding wire, plate thickness, welding current and target application. HeLi Welding can review whether SJ501 is a suitable starting option for testing.

Can I request a technical data sheet?

Yes. Use the inquiry form or technical data sheet button and include your company, country and intended application so the sales team can send the relevant product information.

Can this flux be matched with different welding wires?

SJ501 is commonly discussed with H08A, H08MnA, H08MnMoA and equivalent wires. Final wire matching should be confirmed by welding procedure testing and buyer requirements.

What are the standard commercial terms?

Standard information provided for this preview: MOQ 25 tons, 25 kg bags, FOB trade term, T/T payment, and delivery typically around 30 days depending on destination.