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Qinghe Sheng Teng Welding Materials Co., Ltd.
phone:0086-03198220982
Phone:0086-15630920041
mailbox:hbsthc@hotmail.com
Website:www.hbsthc.com
Zip code:054800
address:Qinghe County, Xingtai City, Hebei Province, Qingjiang Industrial Park

current location:Home > Products> Low temperature steel electrodeLow temperature steel electrode

W907Ni

Description:

J107 is a low hydrogen sodium type low alloy high strength steel electrode, using DC reverse, all-position welding.

 

use:

For welding tensile strength equivalent to about 980N / mm 2 low-alloy high-strength steel structure.

 

Deposited metal chemical composition (%)


C

Mn

Si

S

P

Mo

guarantee value

≤0.20

≥1.00

≤0.70

≤0.035

≤0.035

≥0.30

Example value

0.085

2.77

0.37

0.011

0.017

0.74

 

Deposited metal mechanical properties (620 ℃ × 1h)

Pilot projects

Rm (N / mm 2 )

ReL / Rp 0.2 (N / mm 2 )

A (%)

KV 2 (J)

Room temperature

guarantee value

≥980

≥880

≥12

-

Example value

1050

930

18

90

 

Deposited metal diffusion hydrogen content: ≤ 5.0ml / 100g (chromatography or mercury method)
X-ray detection:

I level

 

Reference current (DC + )

Electrode diameter (mm)

φ3.2

φ4.0

φ5.0

Welding current (A)

90 ~ 120

140 ~ 180

170 ~ 220

 

Precautions:

1. Before welding electrode to be 400 ℃ baking 1h, placed in 100 ~ 150 ℃ incubator, with the use of take.
2.
Solder before welding to remove rust, oil, water and other impurities.
3. The use of short arc welding, narrow-channel welding is appropriate.
4. Weldment before welding by 200 ~ 300 ℃ preheating and tempering at about 500 ℃ after welding to eliminate internal stress.


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