Sanicro69 是一种碱性药皮焊条，用于大多数低合金钢和不锈钢上耐腐蚀堆焊。它还用于合金 690 型的合金，例如
Sanicro69 和异种接头的焊接。
该焊条具有优良的焊接性能，非常适合接头焊接以及堆焊。
STANDARDS
– ISO 14172: Ni6152
– AWS A5.11/ASME SFA-5.11:ENiCrFe-7
APPLICATIONS
It is used for welding of alloys of Alloy690 type (e.g. Sanicro 69) and dissimilar joints. It is also usedfor overlaywelding in the nuclear industry used primarily for steamgenerators in nuclear power plants (PWR). Forthis application the material is characterized byextremely high stress corrosion resistance in primary side PWRwater conditions. Sanicro 69 also has improvedpitting resistance in chloride containing solutions compared toalloy 600.
Sanicro 69 is characterized by excellentresistance to nitric acid. Furthermore, the material shows verygoodresistance to high temperatureoxidation.
焊缝金属特征
以下数据对非热处理的全焊缝金属有效。
C Si Mn P S Cr Ni Mo FeNb
化学成分，wt%
≤0.040 0.5 2.4 ≤0.015 ≤0.005 30 56 ≤0.3 91.6
微观组织 - 全焊缝金属
全奥氏体
机械性能
温度 C (°F) 20 (68) 360(680)*
屈服强度，R MPa (ksi) 420 (61) 330(48)
抗拉强度，R MPa (ksi) 650 (94) 520(75)
延伸率，A % 43 39
冲击强度，夏比 V 型 J(ft lb) 115 (85) -
R 对应于 0.2% 塑型变形的屈服强度
o b
P0.2a
m
a p0.2
b 610°C 下焊后热处理 16h 后。
耐腐蚀性能
抗晶间应力腐蚀开裂性。
制造
直径，mm(in.) 电流，A
2.50 (~3/32) 50-70
3.25 (~1/8) 70-100
4.00 (~5/32)105-145
必要时重新烘干焊条：200°C (390°F)/2 h
PRODUCTIVITYDATA
Electrode diameter, mm (in.) 2.50 (~3/32)3.2 (~1/8) 4.00 (~5/32)
Length, mm (in.) 300 (~12) 350 (~14) 350(~14)
Deposition rate
kg weld metal/h (approx.) ≤0.9 ≤1.4≤2.2
lb weld metal/h (approx.) ≤2.0 ≤3.1≤4.9
Effective value
kg weld metal/kg electrodes 0.66 0.690.67
lb weld metal/lb electrodes 0.66 0.690.67
Change value
Electrodes/kg weld metal 94 4930
Electrodes/ lb weld metal 43 2314
Burn-off time per electrode at max current,s 46 59 76
