AWS Class ER630 Mig and Tig Filler Welding Wire and Rod

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Kyaw Stainless, being a reliable stainless steel welding consumables producer in Naypyidaw, Myanmar, supplies AWS Class ER630 MIG and TIG Filler Welding Wires and Rods designed for high-strength applications. Alternatively referred to as 17-4PH, this precipitation-hardening stainless filler possesses high strength, toughness, and corrosion resistance. Manufactured employing advanced metallurgy, Kyaw Stainless achieves accurate composition and consistent performance. ER630 wires and rods are commonly applied in aerospace, petrochemical, and power generation sectors. They provide higher mechanical properties and are applicable for making and replacing parts that have to resist stress, wear, and corrosive conditions.

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ER630 filler wires consist of chromium (15–17%), nickel (3–5%), copper (3–5%), and 0.15–0.45% niobium/columbium with low carbon content. The weld metal develops tensile strength of around 930 MPa, yield strength of 725 MPa, and elongation of around 17% after proper heat treatment. It exhibits exceptional corrosion resistance in marine and chemical environments and good mechanical stability. ER630 resists hardness and strength through precipitation hardening and is best suited for high-stress parts and structural works.

AWS Class ER630 Mig and Tig Filler Welding Wire and Rod Specifications

Classification	AWS A5.9, ER630
Form	MIG spools, TIG cut lengths, Reels and Coils
Type Of Welding	Inert Gas Welding
Current	MIG-DCEP / TIG-DCEN
Diameters	.023”, .030”, .035”, .045”, 1/16”, 3/32”, 1/8”
Standard TIG straight lengths are available	36” (914 mm) or 39” (1000 mm) lengths. Other lengths available upon request.
AWS ER630 MIG & TIG Filler Metal Application & uses	Hardware tools Metallurgy Machinery Construction Shipbuilding Petroleum Chemical plant Power sector Gas Industry

AWS Class ER630 Mig and Tig Filler Welding Wire and Rod Chemical Composition

C	Cr	Ni	Mo	Mn	Si	P	S	Cu	Element	Amount
0.05	16.00-16.75	4.5-5.0	0.75	0.25-0.75	0.75	0.03	0.03	3.25-4.00	Nb	0.15-0.30

AWS Class ER630 Mig and Tig Filler Welding Wire and Rod Mechanical Properties

Yield, kpsi:	135
Tensile Strength, kpsi:	150
Elongation%, min:	10

We offer These Products as per DIN, ISO, JIS or ANSI Standard.

Why AWS Class ER630 MIG and TIG Filler Welding Wire and Rod from Kyaw Stainless?

Largest Inventory

Customer Support

On Time Deliveries

ISO Certified

Types of AWS Class ER630 MIG and TIG Filler Welding Wire and Rod

Stainless Steel ER630 MIG Filler Wire

High strength and excellent corrosion resistance, ideal for welding precipitation-hardening stainless steels in aerospace and industrial applications requiring durable, high-performance joints.

Stainless Steel ER630 TIG Filler Wire

Superior strength and corrosion resistance, suitable for welding high-strength, precipitation-hardening stainless steels, ensuring robust welds for aerospace, petrochemical, and high-stress applications.

Stainless Steel ER630 TIG Filler Rod

High strength and excellent corrosion resistance, perfect for welding precipitation-hardening stainless steels in critical applications like turbine blades and aerospace components, ensuring durability and performance.

AWS Class ER420 MIG and TIG Filler Welding Rod and Wire is applied where top hardness and wear resistance are needed. It finds frequent use in welding turbine parts, pump shafts, and tool steel parts. In the oil and gas sector, it is best suited for hardfacing operations, valve seating, and pipeline repair. It is further applied in the aerospace, automotive, and defense industries for producing parts that experience severe mechanical stress and high temperatures. It is also ideal for overlaying and restoring worn parts in industrial equipment.

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AWS Class ER630 MIG and TIG Filler Welding Wires and Rods Uses

AWS Class ER630 MIG and TIG filler wires and rods are employed to weld precipitation-hardening stainless steels like 17-4PH. Typical uses are in turbine blades, shafts, pumps, and valves in aerospace, marine, and power applications. The fillers are well suited for welding and repairing parts with a need for high strength, impact toughness, and protection from corrosion. Postweld heat treatment reestablishes the required mechanical properties and hardness. ER630 is extensively used in fabrication and maintenance of precision-engineered stainless steel parts.