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US-36日本神鋼埋弧焊絲
日本神鋼MG-S9Cb ER90S-G耐熱鋼焊絲 P91氣保焊絲
陜西西安駿焊專業(yè)銷售日本神鋼耐熱鋼實(shí)芯焊絲藥芯焊絲 低溫鋼藥芯焊絲 實(shí)芯焊絲焊條 耐熱鋼焊條焊絲 耐候鋼焊條焊絲 高強(qiáng)鋼焊條焊絲 不銹鋼焊條焊絲 氣體保護(hù)焊絲 耐磨焊絲 鑄鐵焊條焊絲 銅焊條焊絲 鋁焊條焊絲 銀焊條 鎳基焊條焊絲等進(jìn)口焊條焊絲
US-36/AF-490AS is a solid wire/flux combination for welding mild steels as well as HT490 class steels. AF-490AS, a fluoride-basic agglomerated flux, shows superb and stable notch toughness down to -40°C as well as good usability in combination with US-36 SAW wire. Details related to US-36 x AF-490E are shown in Table 8.
3-1. Properties of all weld metal
The chemistries and mechanical properties of the all weld metal are shown in Tables 9 and 10, respectively. Impact test results in the as-welded condition as well as after Postweld Heat Treatment (PWHT) are shown in Figures 9 and 10 by the transition curves, respectively.
Designed for optimum flux basicity, AF-490AS can obtain stable and excellent notch toughness at temperatures as low as -40°C even though no special elements have been added. The bead appearance is shown in Figure 11.
FAMILIARC? US-36 3 FAMILIARC? AF-490AS
Table 8: Description of US-36/AF-490AS
Classification
AWS A5.17 F7A6-EH14; F7P6-EH14
Features
Butt welding of medium and heavy plate
Multi-pass welding only
Excellent notch toughness at low
temperature down to -40℃
Polarity
DCEP
Boniszewski basicity
2.6
Shipping approval
ABS, DNV, LR, GL, BV
Table 10: Mechanical properties of all weld metal
C
Si
Mn
P
S
US-36 / AF-490AS
0.07
0.39
1.62
0.014
0.004
Note: Welding conditions: 550A-30V-42cpm; Ext=30mm
0.2%OS
(MPa)
TS
(MPa)
El
(%)
US-36/
AF-490AS
As-welded
516
598
32
PWHT (620℃ x 1hr)
547
565
32
AWS spec. (As-welded & PWHT)
375 min
490-660
22 min
Note: Welding conditions: 550A-30V-42cpm; Ext=30mm
