High temperature 309 & 310 stainless

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Alloy

Process

Product

Specifications

AWS

BS EN

High temperature 309 alloys

253MA MMA Supermet 253MA

309

MMA Thermet 309CF E309-16 (E 22 12 R)
TIG/MIG

309S94

ER309 23 12 H

309H

MMA Thermet 309H

309W

MMA Thermet 309W

BS: 23.12.W.R

310 stainless steels for high temperature service

310

MMA

25.20 Super R (E310-16) E 25 20 R
Ultramet B310Mn (E310-15) E 25 20 B
TIG/MIG/SAW

310S94

ER310

25 20

310H

MMA Thermet 310H E310H-15 E 25 20 H B

 Sulphur dioxide (SO2)

Flue gas desulphursation (FGD) systems are used to remove sulphur dioxide. “Wet scrubbers” are the most widespread method and can be up to 99% effective.

A mixture of limestone and water is sprayed over the flue gas and this mixture reacts with the SO2 to form gypsum (a calcium sulphate), which is removed and used in the construction industry.

Typical applications for 309 and nickel base 59 Alloys

 

 

 

Drax Power Limited is the operating subsidiary of Drax Group plc and the owner and operator of Drax Power Station, the largest, cleanest and mostefficient coal-fired power station in the UK

The output capacity from the station’s six generators is 4,000MW. All units are fitted with flue gas desulphurisation (FGD) equipment, which removes 90% of the sulphur dioxide from emissions.

Metrode consumables are used extensively at Drax