AWS Class E630-16 Coated Electrodes

Conra Welding Supplies, located in Houston, USA, is a reliable manufacturer and supplier of AWS Class E630‑16 coated electrodes. These electrodes are specifically designed for welding precipitation-hardening stainless steels like 17‑4PH/630, and they meet the AWS A5.4 E630‑16 standards. Conra employs advanced flux and alloy controls in their production process to guarantee consistency, machinability, and excellent corrosion resistance. With a local warehouse in Houston, welders and fabricators enjoy quick delivery and expert technical support. Whether you’re working on hydraulic components, aerospace hardware, or chemical processing equipment, these electrodes deliver the reliability and performance needed for tough industrial tasks.

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AWS Class E630-16 Coated Electrodes Specification

Classification	AWS A5.4, E630-16
Form	Welding Electrode, Welding Rods
Type Of Current	AC-DCEP (Direct Current Electrode Positive)
Welding Position	F, V, OH, H
Size	2.0 mm, 2.50 mm, 3.15 mm, 4.00 mm, 5.0 mm
AC/DC+	AC or DC (+)
JIS Specification	BS 2926 19.9 A R
Other Specification	DIN 8556 E19 9 R 23 A
AWS E630-16 Coated Electrodes Application & uses	Petroleum Chemical plant Power sector Gas Industry Hardware tools Metallurgy Machinery Construction Shipbuilding

What is AWS Class E630-16 Coated Electrodes?

AWS E630‑16 electrodes create a martensitic precipitation-hardening weld metal that contains about 0.03–0.05% carbon, 16.0–16.75% chromium, 4.5–5.0% nickel, 3.25–4.0% copper, up to 0.75% molybdenum, and 0.15–0.30% niobium + tantalum. The as-welded tensile strength usually exceeds 930 MPa (135 ksi) and can reach around 1,030 MPa (149 ksi) after post-weld aging. The yield strength is a minimum of 730 MPa (105 ksi), and elongation varies from 7% in the as-welded state to about 17% after proper heat treatment.

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Electrodes and Filler Wire

We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.

AWS Class E630-16 Coated Electrodes Chemical Composition

Carbon (C)	0.03
Chromium (Cr)	16.58
Copper (Cu)	3.55
Iron (Fe)	Balance
Manganese (Mn)	0.56
Molybdenum (Mo)	0.20
Nickel (Ni)	4.78
Niobium (Nb)	0.24
Nitrogen (N)	0.04-0.08
Phosphorous (P)	0.018
Silicon (Si)	0.44
Sulfur (S)	0.02

AWS Class E630-16 Coated Electrodes Equivalent Grade

Class	UNS	Oxford Alloys
E630-16	W37410	Alloy 630-16

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Top Manufacturer and Supplier of AWS Class E630-16 Coated Electrodes in Houston , USA

Conrad Welding Supplies is a Top manufacturer and supplier of high-quality AWS Class E630-16 Coated Electrodes in Houston , USA. Specializing in welding solutions, we provide a wide range of products, including coated electrodes, welding electrodes, flux core, MIG & TIG welding wires, SAW flux and filler wires. Known for our reliable delivery and superior customer service, We are committed to offering top-tier welding materials that ensure durability and performance across a wide range of industrial applications. We strive to meet the highest standards, making us a trusted partner for all your welding needs.

Modern Equipments

Well Maintained

Expert Engineers

Efficient Factories

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AWS Class E630-16 Coated Electrodes Uses

AWS E630‑16 electrodes are perfect for welding and repairing precipitation-hardening stainless steels such as 17‑4PH and 17‑7PH. They’re frequently used in the fabrication and repair of hydraulic components, aerospace hardware, petrochemical valves, and pressure vessels. After welding, parts can either be used in their “as-welded” state or aged to achieve enhanced strength and hardness, making them ideal for applications that demand corrosion resistance and durability.

Industry We Serve

We provide high-quality electrodes, filler wire, MIG and TIG welding wires to a wide range of industries, including oil and gas, food, marine, petrochemical, power generation, and aerospace.