瑞典SANICRO 69/ENiCrFe-7镍基合金焊条

Sanicro 69 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

Sanicro 69 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: Ni 6152

– AWS A5.11/ASME SFA-5.11: ENiCrFe-7

APPLICATIONS

It is used for welding of alloys of Alloy 690 type (e.g. Sanicro 69) and dissimilar joints. It is also used for overlaywelding in the nuclear industry used primarily for steam generators in nuclear power plants (PWR). For this application the material is characterized by extremely high stress corrosion resistance in primary side PWR water conditions. Sanicro 69 also has improved pitting resistance in chloride containing solutions compared to alloy 600.

Sanicro 69 is characterized by excellent resistance to nitric acid. Furthermore, the material shows very goodresistance to high temperature oxidation.

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 Fe Nb

化学成分，wt%

≤0.040 0.5 2.4 ≤0.015 ≤0.005 30 56 ≤0.3 9 1.6

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 16 h 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

PRODUCTIVITY DATA

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 0.69 0.67

lb weld metal/lb electrodes 0.66 0.69 0.67

Change value

Electrodes/kg weld metal 94 49 30

Electrodes/ lb weld metal 43 23 14

Burn-off time per electrode at max current, s 46 59 76