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Tig Welding Wire
904L TIG

Classifications
DESCRIPTIONS Stainless Steel
AWS AWS A5.9 ER385
 
Mechanical Properties
TENSILE 610 N/mm²
YIELD 410 N/mm²
ELONGATION 35%
IMPACTVALUE 180J
Min Tensile 510 N/mm²
Min Yield Strength 320 N/mm²
Min Elongation 25%
HARDNESS 170 BRINELL
amp16 80-110
Pack Size 5Kg
Shield Gas The most frequently used shielding gas is pure argon with a gas flow of 6-8 l/min.
Heat Input Max.1.5kj/mm
Scaling Temperature Approx. 1000ºC (air)
Corrosion Resistance Very good in non-oxidising environments such as sulphuric or phosphoric acids. Very good resistance to pitting and crevice corrosion in chloride containing Environments. Excellent resistance to general corrosion and stress corrosion cracking.
Chemical Analysis
Carbon 0.01
Manganese 1.70
Silicone 0.35
Chromium 20
Molybdenum 4.5
Nickel 25.5
Copper 1.5

Welding Position

Characteristics
904L is intended for welding 904L and similar grades. 904L is very well suited for use in constructions of the ASTM 316 type, where a ferrite-free weld metal is required, e.g. in cryogenic or non magnetic applications. The impact strength at low temperatures is excellent.

Procedures
904L has a relatively good resistance, provided that the welding has been carried out carefully i.e. by minimizing the dilution and by keeping the heat input at max 1.5 kj/mm. The material should also be allowed to cool down to 100ºC before the next run is welded.

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Tig Welding Wire
ER309L TIG

Classifications
DESCRIPTIONS Stainless Steel
AWS AWS A5.9 ER309L
ISO EN ISO W23 12 L
 
Mechanical Properties
TENSILE 590 N/mm²
YIELD 460 N/mm²
ELONGATION 32%
IMPACTVALUE 170j
Min Tensile 510 N/mm²
Min Yield Strength 320 N/mm²
Min Elongation 25%
HARDNESS 19HRc
Pack Size 5Kg
Shield Gas Ar(99.95%) or Ar with an addition of 20-30% helium (He) or 1-5% hydrogen (H2). Gas flow rate 4-8 l/m
Heat Input Max.2.0kj/mm
Scaling Temperature Approx. 1000ºC (air)
Corrosion Resistance Superior to 308L. The corrosion resistance obtained on the first layer when surfacing corresponds to that of ASTM 304.
Chemical Analysis
Carbon 0.02
Manganese 1.80
Silicone 0.4
Chromium 23.5
Nickel 14

Welding Position

Characteristics
ER309L is a high alloy 23Cr 13Ni wire primarilay intended for surfacing low-alloy steels and for dissimilar welding between mild steels and stainless steels, offering a ductile and crack resistant weldment.

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Tig Welding Wire
ER2209 TIG

Classifications
DESCRIPTIONS ER2209
AWS AWS A5.9 ER2209
 
Mechanical Properties
TENSILE 805 N/mm²
YIELD 610 N/mm²
ELONGATION 31
IMPACTVALUE 200 Joules
Min Tensile 550 N/mm²
Min Yield Strength 450N/mm²
Min Elongation 20
amp16 80-110
Pack Size 5Kg
Heat Input 0.5-2.5 kj/mm
Scaling Temperature Approx. 850°C (air).
Corrosion Resistance Very good resistance to pitting and stress corrosion cracking in chloride containing environments.
Chemical Analysis
Carbon 0.02
Manganese 1.6
Silicone 0.50
Chromium 23.0
Molybdenum 3.1
Nickel 8.5
Nitrogen 0.17

Welding Position

Characteristics
ER2209 provides a ferritic-austenitic weldament that combines many of the good properties of both ferritic and austenitic stainless steels.

Procedures
Welding without filler metal(i.e. TIG dressing) is not allowed since the ferrite content will increase drastically and both mechanical and corrosion properties will be negatively affected. Ar (99.95%). Ar with addition of up to 2% nitrogen (N2) is advantageous and will have a positive affecton both mechanical and corrosion properties. Gas flow rate 4-8 l/min.

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Tig Welding Wire
ER308L TIG

Classifications
DESCRIPTIONS Stainless Steel
AWS AWS A5.9 ER308L
 
Mechanical Properties
TENSILE 640 N/mm²
YIELD 470 N/mm²
ELONGATION 34%
IMPACTVALUE 140j
Min Tensile 510 N/mm²
Min Yield Strength 320 N/mm²
Min Elongation 30%
HARDNESS 200 BRINELL
amp16 80-110
Pack Size 5Kg
Heat Input Max. 2.0 kj/mm
Scaling Temperature Approx. 850ºC (air)
Corrosion Resistance Corresponding to ASTM 304, i.e. fairly good under severe conditions such as oxidising and cold dilute reducing acids
Chemical Analysis
Carbon 0.02
Manganese 1.7
Silicone 0.55
Chromium 20
Nickel 10.5

Welding Position

Characteristics
ISOARC ER308L is designed for welding austenitic stainless steel type 19 Cr 10 Ni or similar. The filler metal is also suitable for welding titanium and niobium stabilised steels.ER308LSi has enhanced silicon contant(0.85%) which improves the fluidity of the melt pool with a minimum of spatter and porosity.

Procedures
Welding is performed using direct current negative polarity (DC-). Welding can also be performed using pulsed current, which can be advantageous when welding in positions and for the welding of thin gauges. Shielding gas recommendations: the most frequently used shielding gas is pure argon (Ar) with a gas flow of 6-8 l/min. Addition of about 30% helium (He) or 1-5% hydrogen (H2) will increase the energy of the arc. This will give a wider weld and a better fluidity of the melt pool.

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Tig Welding Wire
2507

Classifications
DESCRIPTIONS 2507
AWS A5.9 ER2553
 
Mechanical Properties
TENSILE 660
YIELD 860
ELONGATION 28%
IMPACTVALUE 190J
Min Tensile 550
Min Yield Strength 620
Min Elongation 18%
amp16 80-110
Chemical Analysis
Carbon 0.012
Manganese 1,21
Silicone 0,26
Chromium 25.21
Molybdenum 3,18
Nickel 6,32

Welding Position

Characteristics
Corrosion resistance:Excellent resistance to pitting and stress corrosion cracking in chlorine-containing environments. Pitting resistance in accordance with ASTM G48-A better than 40 °C.

Applications
Isoarc 2507 is intended for welding super duplex alloy such as SAF 2507 (UNS 32750), UNS 327760, UNS 32550 and UNS 31260. It can also be used for welding duplex, type 2209, if extra high corrosion resistance is required, e.g. in root runs in tubes. Isoarc 2507 produces a ferritic-austenitic weld metal. The higher content of Cr, Ni, Mo and N compared to 2205 provides excellent mechanical and corrosion properties.

Procedures
The weldability of Isoarc 2507 is excellent. However, super duplex steels are somewhat more difficult to weld compared to austenitic steels such as 316L, mainly with respect to fluidity and penetraction into the metals. To utilise the good properties of a duplex steel it is of utmost importance to obtain a good ferrite content in the weld . This is best achieved by welding with sufficient root gap (2-2.5mm), using the right amount of filler metal and welding with a controlled heat input. 2507 should be welded with a heat input not exceeding 1.5kJ/mm and by keeping the interpass temperature at a maximum of 100 C. Welding without filler metal (TIG-dressing) is not advisable, as the ferrite content will increase drastically, which will have a negative effect on both mechanical and corrosion properties.

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