图片名称
product
Network
Contact Us

Products

description:

CHH408　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

Heat-resisting steelWilding Electrode 　　　　　　　　　　　　　　　　　　　　　　　　　　　

CHH408 is a potassium low hydrogen iron powder type,low alloy welding rods.With a trait of resistance kf high temperature and oxidation,it is suitable for fabricating equipments of chemical and petroleum industries as well as high temperature,high press pipes which is fabricated by Cr2.5Mo low alloy steel,which work temperature lower than 550℃.All position welding is obtained and short arc is recommended.It is should be backed at a temperature between 350℃-380℃ for 1 hour before welding.The base metal should be heated to 300℃ before welding and it is must be tempered at 720℃-750℃ after welding.

Chemical Composition of Deposited Metal(%)

 
C
Mn
Si
S
P
Cr
Mo
Standard
0.05-0.12
≤0.90
≤0.80
≤0.035
≤0.035
2.00-2.50
0.90-1.20
Typical
0.072
0.65
0.15
0.012
0.010
2.27
1.12

Michanical Properties of Deposited Metal

 

Yield Point

бs(MPa)

Tensile Strength

бb(MPa)

Elongation

δ5(%)
Impact Value(J)
20℃
Standard
≥490
≥590
≥15
≥27
Typical
560
655
22
160

Sizes,Pieces & Recommended Current(AC≥70V or DC+)

Size(mm)
2.5×300
3.2×350
4.0×400
5.0×400
Pieces(5kg)
≈299
≈160
≈88
≈57
Current(A)
60-90
90-120
140-180
170-210

 

 

ADD：No. 188, Qingda Road, Heqing Town, Pudong New Area, Shanghai City  Tel：021-58979176 Fax：021-58975707

Copyright Shanghai Atlantic Welding Consumables Co.,Ltd.

SEO

www.300.cn

上海工商
Business license