Weld Repair of THZ408 Cast Iron Welding Rods for Welding High Strength Gray Cast Iron and Nodular Cast Iron ENiFe-CI for Gas Cylinders

Application:It is suitable for the welding of high-strength gray iron and nodular cast iron, such as cylinder, engine block, gear box,etc..

Characteristics: THZ408 is the cast iron electrode with nickel iron alloy core and strong reduction of graphite coating . It can be used in AC and DC dual purpose, has stable arc,and is easy to operate. The electrode has the characteristics of high strength, good plasticity, low linear expansion coefficient and so on. The crack resistance for grey cast iron is as much as that for THZ308, while the crack resistance for nodular cast iron is more than THZ308. For cast iron with higher phosphorus (0.2%P), it also has a good results and its tocutting performance is lower than THZ308 and  THZ508 slightly. THZ408 is used in the welding of gray iron and nodular cast iron for room Precautions:

1 Before welding, the electrodes need to be baked for 1 hour with the temperature of 150±10℃ before using.

2 Use small current for welding as far as possible.

3 It can eliminate the welding stress and avoid the crack by the hammer.

Chemical Composition of the deposited metal(the mass fraction):               %               

Welding reference current(AC,DC⁺)

Some of our products have been applied to overseas key projects.

Electrode, SAW wire and flux of 600MPa Grade & 800MPa Grade

applied to hydro steel at Laos pumped storage power station

E6010 cellulose electrode Applied to the Ghana TEMA pipeline project in Africa successfully. It breaks the monopoly of Bohler cellulose electrode and won the bidding of oil pipeline Ghana tank project

Tianjin Bridge Welding Materials Group Co., Ltd., founded in 1957, is one of the largest welding consumables manufacturing enterprises in China. In the past half century, "BRIDGE " welding consumables sell well in more than 60 countries and regions. "BRIDGE”welding consumables has 4 categories, 500 types more,including covered electrodes (SMAW), solid wire/Rod (GMAW & GTAW), flux-cored wire/Rod (FCAW) and sub arc wire/strip & flux (SAW/ESW). They are for welding steel of non-alloy & fine grain steel, creep resistant & weatherproof steel, stainless steel, surfacing welding, cast iron, Ni & Ni-alloy steel, AI & Al-alloy steel, Cu & Cu-alloy steel and other special welding & cutting. Our products are widely used in construction, shipbuilding and offshore, land traffic and aerospace, boiler and pressure vessel, energy, household appliance, machinery manufacturing,military industries and many other fields.

Keeping improvement and development for product technology and quality continually, which always make us the leader in welding consumables industry. Tianjin Bridge Welding Materials Group Co., Ltd. Passed ISO9001, ISO14001, OHSAS18001 and ISO5001 approvals. Our products of shipbuilding & offshore are approved by ABS, BV, CCS, DNV.GL, LR, NK, KR, RINA, RS, BKI and CWB. Main products are approved by CPD-CE, DB-AG and VD-TUV.

Our: Guiding Ideology- "People-oriented, pursuing sustainable development" Quality policy- "pursuing perfect quality, establishing a good corporation reputation, with excellent quality and service" Principle- "Customers' satisfaction is the first"

We are the professional and perfect partner

of yoursin welding consumables.

Q: what is delivery time / lead time ?

A: 15 days

Q: what is your minimum order ?

A: 5000kgs

Q: what is your payment term ?

A: 30% down payment for order confirmation, 70% before shipment

Q: can we visit your factory ?

A: yes you can at your free time.