Heat Resistant & Cr-Mo

E9018-B92 Cr-Mo Welding Electrode for P92 Steel

E9018-B92 is a low-hydrogen Cr-Mo-W welding electrode for P92 and T92 Grade 92 steels. It is designed for high-temperature and creep-resistant welding in power plants, boilers, steam piping and pressure components. With a controlled 9Cr-2W-Mo-V-Nb alloy system, E9018-B92 provides weld-metal chemistry suited to Grade 92 steel applications. Product selection should be confirmed against the base-metal grade, project specification and qualified WPS.

Why Choose E9018-B92 for P92 Steel?

P92 and T92 are Grade 92 creep-resistant steels used in high-temperature power-generation and steam systems. Their welding requires a consumable with compatible alloy chemistry and controlled post-weld heat treatment.

E9018-B92 is specifically classified for the Grade 92 alloy system and is commonly selected for:

ASTM A335 P92 pipe

ASTM A213 T92 tube

ASTM A387 Grade 92 steel

ASTM A182 F92 forgings

Similar Grade 92 Cr-Mo-W-V-Nb-N steels

For critical P92 welding, the electrode TDS/MTC should be checked against the base material and qualified welding procedure.

E9018-B92 Chemical Composition

AWS classification requirements for undiluted weld metal include:

Element	AWS Requirement, wt.%
C	0.08–0.15
Mn	≤1.20
Si	≤0.60
P	≤0.020
S	≤0.015
Ni	≤1.00
Cr	8.0–10.0
Mo	0.30–0.70
W	1.50–2.00
V	0.15–0.30
Nb	0.02–0.08
B	≤0.006
Al	≤0.04
Cu	≤0.25
N	0.03–0.08

Single-value entries are maximum limits unless otherwise specified. Mn + Ni is limited to 1.40%. Actual deposited chemistry should be confirmed against the manufacturer's TDS/MTC.

Mechanical Properties of E9018-B92

AWS A5.5/A5.5M classification minimum requirements include:

Property	Minimum Requirement
Tensile Strength	≥620 MPa (90 ksi)
Yield Strength	≥530 MPa (77 ksi)
Elongation	≥17%

Actual weld-metal properties depend on the welding condition and PWHT. Certified product data should be used when project-specific mechanical requirements apply.

P92 Welding and PWHT

P92 welding requires controlled preheat, interpass temperature, heat input and post-weld heat treatment.

Typical manufacturer or procedure guidance may include:

Preheat / interpass: approximately 200–315°C

PWHT: commonly around 760°C

Process: SMAW

Polarity: AC or DCEP/DC+

These are typical product or procedure values rather than universal AWS requirements. Final welding and PWHT parameters must follow the qualified WPS and applicable code.

Typical E9018-B92 Welding Current

Electrode Diameter	Typical Current
2.5 mm	60–90 A
3.2 mm	90–140 A
4.0 mm	140–180 A
5.0 mm	180–220 A

Current ranges vary by manufacturer, electrode diameter and welding position. Refer to the actual product TDS for final amperage.

E9018-B92 vs E9018-B91

	E9018-B91	E9018-B92
Typical steel	P91 / T91	P92 / T92
Grade	Grade 91	Grade 92
Alloy system	Cr-Mo-V-Nb-N	Cr-Mo-W-V-Nb-N
Main distinction	Grade 91 consumable	Grade 92 consumable

E9018-B91 and E9018-B92 are not interchangeable by default. The welding electrode should match the specified base-metal grade and qualified WPS.

Applications and Supply

E9018-B92 is commonly used for P92/T92 steam piping, boilers, superheater and reheater components, pressure-containing equipment and power-generation systems requiring high-temperature creep resistance.

AWS: A5.5/A5.5M E9018-B92

ASME: SFA-5.5 E9018-B92, when certified

Process: SMAW

Coating: Basic, low hydrogen

Strength class: 90 ksi

GD WELD supplies E9018-B92 Cr-Mo-W welding electrodes for P92/T92 applications. TDS, MTC, electrode sizes, packaging and project-specific certification can be confirmed according to customer requirements.