BÖHLER K NOVA Ni伯乐焊丝

BÖHLER K NOVA Ni伯乐焊丝

Description
GMAW wire micro alloyed, designed for high quality automatic welding of pipelines. An opti-
mum balanced alloying concept ensures good weld metal properties to fulfil the high require-
ments in the on-offshore pipeline industry. The deposit is extremely crack resistant and the weld
metal offers high impact values down to -50 °C.
Approvals and Certificates
DNV
base Materials
API5L: X 42 – X 70 (X 80)
EN 10208-2: L290MB – L485MB
DIN 17172: StE290TM up to StE480.7TM
Operating Data
Shielding gases  ø mm wire
Argon +15-25 % CO 2 0.9
Argon +0-5 % CO 2 +3-10 % O 2 1.0
100 % CO 2 1.2
Preheating and interpass temperature as required by the base metal.
Mechanical Properties of All-weld metal
(*) u u1
yield strength R e N/mm 2 :  500 (≥ 420) 470 (≥ 420)
tensile strength R m N/mm 2 :  590 (≥ 550) 560 (≥ 500)
elongation A (L 0 = 5d 0 ) %:  24 (≥ 20) 25 (≥ 20)
impact work ISO-V KV J + 20 °C: 150 (≥ 47) 110 (≥ 47)
- 50 °C: 80 45
(*) u untreated, as-welded shielding gas: Ar +15-25 % CO 2
u1 untreated, as-welded shielding gas: 100 % CO 2
Typical Composition of Solid Wire
C Si Mn Ni Ti
wt-%  0.06 0.70 1.50 0.90 +