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Diameters / Packaging

Diameters
 CAN 12.3 KG (3 x 4.1 KG, approx. 351 pcs)
 CAN 12.9 KG (3 x 4.3 KG, approx. 615 pcs)
 CAN 16.2 KG (3 x 5.4 KG, approx. 240 pcs)
2.5x350 mm CH9B9-25-1
3.2x350 mm CH9B9-32-1
4.0x450 mm CH9B9-40-1

CHROMET® 9-B9

Stick (SMAW)

CLASSIFICATIONS:
AWS A5.5M : E9015-B91 H4
BS EN ISO 3580-B : E 6216-9C1MV

B9 (P91) alloyed steel designed to weld equivalent 'type 91' steels for improved long term creep resistance

Diameter

Select Diameter

  • 2.5x350 mm
  • 3.2x350 mm
  • 4.0x450 mm

Package

Select Package

  • CAN 12.3 KG (3 x 4.1 KG, approx. 351 pcs)
  • CAN 12.9 KG (3 x 4.3 KG, approx. 615 pcs)
  • CAN 16.2 KG (3 x 5.4 KG, approx. 240 pcs)

DETAILS

CHROMET 9-B9 are a low alloy, low hydrogen stick electrodes designed specifically for high integrity structural service at elevated temperature. Typically applications include main steam piping, oil refineries, coal liquefaction plants, power generation plants, and turbine castings.

Features

  • B9 (P91) alloyed steel: Modified 9CrMo designed to weld equivalent "type 91" 9CrMo steels modified with small additions of niobium, vanadium and nitrogen for improved long term creep resistance
  • Moisture resistant coatings giving very low weld metal hydrogen levels.
  • Specifically designed for high integrity structural service at elevated temperature
  • Weld metal chemistry is low in impurity elements allowing it to respect the X Factor (<15ppm) and J-factor (<120ppm)

Typical Applications

  • Oil Refineries
  • Coal Liquefaction and Gasification Plants
  • Główne rurociągi pary
  • Valves and Turbine Casings
  • Power Generation Plants

Welding Positions

  • All position, except vertical down

Service Information

BEFORE USE, READ AND UNDERSTAND THE SAFETY DATA SHEET (SDS) FOR THIS PRODUCT AND SPECIFIC INFORMATION PRINTED ON THE PRODUCT CONTAINER. SDS Search page

CONFORMANCE

CONFORMANCES SPECIFICATION CLASSIFICATION
AWS AWS A5.5 E9015-B91 H4
ISO ISO 3580-B E 6216-9C1MV

MECHANICAL PROPERTIES

Classification Yield Strength @ 0.2% Offset
MPa (ksi) 		Tensile Strength
MPa (ksi) 		Elongation
%
E9015-B91 H4 Requirement 530 (77) min. 620 (90) min. 17 min.
E 6216-9C1MV Requirement 530 (77) min. 620 (90) min. 15 min.
Typical Result, Stress relieved 590 (86) 710 (103) 22

DEPOSIT COMPOSITION

Classification %Al %C %Cr %Mn %Mo %N %Nb %Ni %P %S %Si %Total Cu %V %Mn+Ni
E9015-B91 H4 Requirement 0.04 max. 0.08 - 0.13 8.0 - 10.5 1.20 max. 0.85 - 1.20 0.02 - 0.07 0.02 - 0.10 0.80 max. 0.01 max. 0.01 max. 0.30 max. 0.25 max. 0.15 - 0.30 1.40 max.
E 6216-9C1MV Requirement 0.04 max. 0.08 - 0.13 8.0 - 10.0 1.25 max. 0.85 - 1.20 0.02 - 0.07 0.02 - 0.10 1.0 max. 0.01 max. 0.01 max. 0.30 max. 0.25 max. 0.15 - 0.3 1.50 max.
Typical Result 0.01 0.10 9.0 0.55 1.00 0.05 0.04 0.30 0.01 0.01 0.25 0.05 0.20 0.85

TYPICAL OPERATING PROCEDURES

Diameter Current
Amps
2.5 mm (3/32") 70-110
3.2 mm (1/8") 80-140
4.0 mm (5/32") 100-180
5.0 mm 140-240