Atom Arc 9018-B91

Atom Arc 9018-B91 is designed to weld martensitic 95% Cr & 1% Mo-V steels known by the designations T91, P91 or Grade 91. These steels are designed to provide improved creep strength, fatigue, oxidation, and corrosion resistance at elevated temperatures. It also provides good weld metal ductility and high charpy values at room temperature. This product is optimized to meet the requirements for Mn + Ni contents < 1.0 wt %.

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Process

SMAW/MMA (Stick)

Specifications

Specifications
Classifications	ASME SFA 5.5 : E9018-B91H4R AWS A5.5 : E9018-B91H4R

Welding Current	AC, DC+
Diffusible Hydrogen	< 4.0 ml/100g
Alloy Type	Low alloyed (9% Cr - 1% Mo-V-Nb)

Tensile_Properties
Testing Condition	Yield Strength	Tensile Strength	Elongation
Stress Relieved 2 hour(s) 760 °C ( 1400 °F )	593 MPa ( 86 ksi )	731 MPa ( 106 ksi )	25 %

Charpy Testing
Testing Condition	Testing Temp	Impact Value
Stress Relieved 2 hour(s) 760 °C ( 1400 °F )	22 °C ( 72 °F )	94 J ( 70 ft-lb )

Typical Weld Metal Analysis %
C	Mn	Si	S	P	Ni	Cr	Mo	V	Cu	N	Nb	X-bar	Mn+Ni
0.10	0.75	0.20	0.01	0.01	0.21	8.48	0.92	0.21	0.04	0.043	0.04	<15	<1.0

Deposition Data
Diameter	Amps	Volts	Efficiency (Per)	Fusion time per electrode at 90Per I max	Deposition rate at 90Per
2.4 x 356.0 mm ( 3/32 x 14.0 in. )	70-110 A	23.2 V	69.01 %	60 sec	0.92 kg/h ( 2.0 lbs/h )
3.2 x 356.0 mm ( 1/8 x 14.0 in. )	90-160 A	23.9 V	72.23 %	70 sec	1.36 kg/h ( 3.0 lbs/h )
4.0 x 356.0 mm ( 5/32 x 14.0 in. )	130-220 A	24.3 V	72.06 %	75 sec	1.89 kg/h ( 4.2 lbs/h )
4.8 x 356.0 mm ( 3/16 x 14.0 in. )	200-300 A	24.3 V	71.04 %	74 sec	2.53 kg/h ( 5.6 lbs/h )

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Description

Product number

Product number: 255067853

Product number: 255067846

Product number: 255067861

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Atom Arc 9018-B91

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Atom Arc 9018-B91

Atom Arc 9018-B91

Atom Arc 9018-B91

Specifications

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Documents

Fact Sheets

Additional Documents

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