DIPTIINOX® ER308H TIG Rod (AWS A5.9): Leading Manufacturer & Exporter for High-Temperature Austenitic Stainless Steel Welding
Dipti Metal Industries is a Leading ER308H TIG Rod Manufacturer and High-Carbon Austenitic Welding Wire Exporter in Mumbai, India, specializing in high-performance AWS A5.9 ER308H GTAW filler metal under the DIPTIINOX® brand. This solid wire is specifically engineered with a controlled carbon range (0.04%–0.08%) to maximize **creep strength** and **stress rupture resistance** in elevated temperature service. It is the ideal consumable for welding high-carbon variants of un-stabilized stainless steels, such as AISI 304H and 308H, widely used in pressure vessels and piping for **power generation** and **petrochemical** industries. As a trusted Stainless Steel TIG Rod ER308H Supplier, we guarantee full conformance to AWS A5.9 for critical industrial applications globally.
DIPTIINOX® ER308H: High-Carbon Filler for Elevated Temperature Service
The AWS A5.9 ER308H TIG Rod is a variant of the standard 308 grade, distinguished by its higher, but controlled, carbon content (H for High Carbon, 0.04%–0.08%). This compositional difference is crucial: the higher carbon level significantly enhances the weld metal's strength at **elevated operating temperatures**, specifically improving its **creep** and **stress rupture properties**. It is therefore the preferred choice for welding H-grade base materials like AISI 304H, 308H, and 347H, which are specified for high-pressure, high-temperature components in power plants, refineries, and chemical processing facilities. The ER308H deposit provides the classic 19Cr-9Ni austenitic structure with added high-temperature stability. Dipti Metal Industries guarantees consistent carbon control in every ER308H rod to ensure the optimal mechanical properties required for demanding hot applications.
Key Features, Benefits, and Conformances of ER308H TIG Rods
Key Features & Service Performance (As per Datasheet)
Carbon Control: Specifically designed with 0.04%–0.08% Carbon for high-temperature applications.
Versatility: Can be used for welding the standard 304/308 grades when improved high-temperature service is desired.
International Conformances and Quality
AWS/ASME Specification
AWS A5.9 / ASME SFA 5.9
Classification
ER308H
UNS Number (Filler)
(Similar to UNS S30800)
Certification
EN 10204 3.1 Material Test Certificate (MTC)
Form: Solid Wire for TIG (GTAW) and MIG (GMAW).
Finish: Bright, clean finish for superior feeding and arc performance.
AWS A5.9 ER308H - Chemical Composition and Mechanical Properties
AWS Chemical Composition Requirements (%)
C
Mn
Si
P max
S max
Cr
Ni
Mo max
Cu max
0.04 – 0.08
1.0 – 2.5
0.30 – 0.65
0.03
0.03
19.5 – 22.0
9.0 – 11.0
0.50
0.75
Deposited Chemical Composition % (Typical)
C
Si
Mn
P
S
Cr
Ni
N
0.04
0.32
1.8
0.009
0.009
20.0
9.5
0.05
Mechanical Properties (R.T.) of Deposited All Weld Metal (Typical)
Yield Strength (psi)
Tensile Strength (psi)
Elongation %
Reduction of Area %
61,000
90,000
41%
60%
Data is typical for ER308H weld metal deposited by TIG (GTAW) using 100% Argon as the shielding gas.
Welding Parameters, Diameter Range, and Packaging Options
Our ER308H TIG Rod is manufactured to precise tolerances, ensuring a consistent feed and high-quality welds, particularly for high-heat, critical components. It is supplied in standard cut lengths for GTAW and spools for GMAW (MIG).
Note: Proper control of interpass temperature is vital when welding H-grade materials to maximize creep strength. Parameters for TIG welding are dependent upon plate thickness and welding position.
Standard Diameters & Packaging (GTAW - TIG Rods)
Diameter (in)
Diameter (mm)
Length (in)
Length (mm)
Packaging (kgs)
.030
0.8
36
914
5 kgs (Plastic Container)
.035
0.9
36
914
5 kgs (Plastic Container)
.045
1.2
36
914
5 kgs (Plastic Container)
1/16
1.6
36
914
5 kgs (Plastic Container)
3/32
2.4
36
914
5 kgs (Plastic Container)
1/8
3.2
36
914
5 kgs (Plastic Container)
5/32
4.0
36
914
5 kgs (Plastic Container)
3/16
4.8
36
914
5 kgs (Plastic Container)
Each 5 kgs quantity is packed in an air-tight polythene bag and then secured in a durable plastic container for export. AWS code is punched on each wire for clear identification.
Primary Applications for DIPTIINOX® ER308H TIG Rod
The **ER308H** TIG rod's superior high-temperature properties make it essential for critical components that operate under constant heat and pressure, where creep resistance is a mandated engineering requirement:
Power & Energy: Welding of boiler superheater and reheater tubes, steam piping, and pressure vessels in power plants (especially coal-fired and nuclear).
Petrochemical & Refinery: Fabrication of high-temperature furnace parts and heat exchangers.
Base Metals: Used to weld high-carbon versions of austenitic stainless steels such as AISI 304H, 308H, and 347H.
Heat Treatment Equipment: Repair and fabrication of fixtures, retorts, and muffles subjected to high temperatures.
ER308H TIG Rods Global Export Markets: We are the Biggest Manufacturer Supplying from Mumbai, India
Dipti Metal Industries is a proud ER308H TIG Rod Exporter, ER308H TIG Rod Trader, and ER308H TIG Rod Distributors from our base in TIG rod manufacturer Mumbai, India. We serve as an ER308H manufacturer in Asia and a reliable ER308H manufacturer in Europe, ensuring timely and compliant delivery to major industrial hubs across over 190 countries globally.
Explore Our Extensive Global Reach (Illustrative Markets)
USA: Houston, Los Angeles, New York, Chicago, New Orleans
Canada: Calgary, Edmonton, Vancouver, Toronto, Montreal
Mexico: Mexico City, Monterrey, Guadalajara, Veracruz
Panama: Panama City, Colón
Trinidad and Tobago: Port of Spain, San Fernando
Costa Rica: San José, Puerto Limón
Guatemala: Guatemala City, Puerto Quetzal
Honduras: Tegucigalpa, San Pedro Sula
Nicaragua: Managua, Corinto
El Salvador: San Salvador, Acajutla
Jamaica: Kingston, Montego Bay
Dominican Republic: Santo Domingo, Santiago
Cuba: Havana, Santiago de Cuba
Bahamas: Nassau, Freeport
Barbados: Bridgetown
Haiti: Port-au-Prince
Puerto Rico: San Juan
Belize: Belize City
Brazil: São Paulo, Rio de Janeiro, Salvador, Curitiba
Democratic Republic of Congo: Kinshasa, Lubumbashi
Cote d'Ivoire: Abidjan
Senegal: Dakar
Mali: Bamako
Malawi: Lilongwe, Blantyre
Mauritius: Port Louis
Reunion: Saint-Denis
Explore Our Full Range of Stainless Steel TIG Filler Metals (AWS A5.9)
Dipti Metal Industries is your global single source for high-performance Stainless Steel TIG (GTAW) filler metals, covering all Austenitic, Duplex, and Specialty grades. Quickly navigate our core alloy pages below:
Austenitic Stainless Steel TIG Rods (300 Series & High Temp)
Get a Quote Today for Your ER308H TIG Rod Requirements!
Are you searching to buy ER308H TIG Rod that is dependable, high-quality, and AWS A5.9 certified for your high-temperature, pressure-retaining applications? Contact Dipti Metal Industries, your expert biggest manufacturer and ER308H TIG Rod Manufacturer, Stainless Steel GTAW Filler Metal Supplier in Mumbai, India, TIG Rod Stockiest, Welding Wire Dealer, and Stainless Steel Welding Wire Exporter, today to discuss your specific requirements or to request a personalized, custom quote. Our team is dedicated to providing you with the most effective, safest, and most reliable DIPTIINOX® ER308H TIG Rod solutions.
Price guidance (non-binding): USD 8.00–60.00 per kg depending on grade, diameter, packaging (Spool/Tube), quantity, and delivery terms. Final prices are quotation-based.
ER308H TIG Rod — Frequently Asked Questions
The key difference is the controlled carbon content. ER308H is specifically manufactured to contain 0.04% to 0.08% carbon, which is required for high-temperature service and improved creep strength, compared to the general-purpose ER308 (0.08% max).
ER308H should be chosen when the welded component will operate at sustained elevated temperatures (typically above 400°C / 750°F) and requires superior creep and stress rupture properties. ER308L (low carbon) is chosen for corrosion resistance in room-temperature or moderate temperature applications.
ER308H is ideal for welding high-carbon grades of austenitic stainless steels such as AISI 304H, 308H, and similar compositions that are specified for high-temperature pressure vessel and piping applications.
No. Due to its higher carbon content, **ER308H is generally not recommended for low-temperature or cryogenic applications**. The low-carbon variant (ER308L) is preferred when good low-temperature notch toughness is required.
Contact Dipti Metal Industries, Your ER308H TIG Rod Manufacturer, TIG Rod ER308H Exporter, TIG Rod ER308H Supplier in Mumbai, TIG Rod ER308H in India
Company
DIPTI METAL INDUSTRIES
Address
No.9, Shreepati Castle, D-1, 10–11th Khetwadi Back Road, Mumbai – 400004, Maharashtra, India
Global export expertise: Seaworthy export packing • Line-wise bagging & tagging • Full documentation & TPI. We are a worldwide exporter of quality ER308H TIG Rod ER308H for export from Mumbai, India.