|
Model number |
National Standard |
C |
Mn |
Cr |
Mo |
Ni |
the rest |
hardnessHRC |
Characteristics and Applications |
|
QD127 |
EDPMn3-16 |
0.20 |
4.20 |
— |
— |
— |
— |
28 |
HRC≥28Used for welding axles, driving wheels, etc. |
|
QD172 |
EDPCrMo-A3-03 |
0.50 |
— |
2.50 |
2.50 |
— |
— |
40 |
Used for single-layer or multi-layer welding of various worn parts surfaces. |
|
QD212 |
EDPCrMo-A4-03 |
0.25/0.55 |
— |
5.00 |
4.00 |
— |
— |
50 |
Used for single-layer or multi-layer welding of various worn parts surfaces. |
|
QD256 |
EDMn-A-16 |
1.10 |
11.0/ |
— |
— |
— |
Total amount of other elements5.0 |
HB170 |
Used for single-layer or multi-layer welding of various crushers, high manganese steel rails, turnouts, bulldozers and other impact prone grinding parts. |
|
QD266 |
EDMn-B-16 |
1.10 |
11.0/ |
— |
2.50 |
— |
— |
HB170 |
HB≥170Used for welding to wear down parts under impact. |
|
QD3Cr2W8 |
EDRCrW-15 |
0.25/0.55 |
— |
2.0/3.5 |
— |
— |
W7.0-10.0 |
48 |
Used for welding and forging die repair of hot shear blade edges for continuous casting steel billets. |
|
QD322 |
EDRCrMoWV-A1-03 |
0.50 |
— |
5.00 |
2.50 |
— |
V1.0 |
55 |
Used for welding various stamping dies and cutting blades, and can be used to repair mechanical parts that require high wear resistance. |
|
QD397 |
EDRCrMnMo-15 |
0.60 |
2.50 |
2.00 |
1.00 |
— |
— |
40/60 |
A hot forging die used for welding cast or forged steel blanks. |
|
QD507 |
EDCr-A1-15 |
0.15 |
— |
11.0/16.0 |
— |
— |
— |
40 |
HRC≥40for450℃Welding of shafts and valves, etc. |
|
QD517 |
EDCrB-15 |
0.25 |
— |
11.0/16.0 |
— |
— |
— |
45 |
HRC≥45Used for welding of shafts, superheated steam valve components, etc. |
|
QD5Cr8Si3 |
EDPCrSi-B |
0.70 |
— |
7.0/9.0 |
— |
— |
Si1.5/3.0 |
54 |
HRC≥54Used for surfacing of abrasive wear parts. |
|
QD5Cr6MnMo |
EDRCrMnMo-15 |
0.60 |
1.5/2.5 |
5.0/8.0 |
≥1.5 |
— |
— |
54 |
HRC≥45Used for welding and repairing various shafts. |
|
QD507Mo |
EDCr-A2-15 |
0.20 |
— |
10.0/16.0 |
2.5 |
6.0 |
W2.0 |
37 |
HRC≥37for510℃The sealing surface of the high-pressure shut-off valve is as follows. |
|
ZD-3 |
EDCr-A2-15 |
0.14 |
3.84 |
12.2 |
— |
3.81 |
W0.43 |
36 |
HRC≥36Self protection1Cr13Ni2WWelding wire for surfacing. |
|
MD-301-1 |
— |
0.08/0.25 |
1.2/1.8 |
11.5/14.5 |
— |
— |
Total amount of other elements1.5 |
40/46 |
for30CrMo、42CrMoWaiting for the repair of the continuous casting roller. |
|
MD301-4 |
— |
0.06/0.25 |
1.2/1.8 |
11.5/14.0 |
0.8/1.2 |
1.2/1.7 |
other0.5 |
43/48 |
for30CrMo、42Cr3MoRepair of continuous casting rollers and manufacturing of composite rollers. |
|
MD301Ni-4 |
— |
0.10/0.25 |
1.2/1.8 |
≥12.5 |
0.8/1.2 |
3.0/4.0 |
other1.0 |
45 |
for15CrMo、20Cr3Mo、30CrMo、42Cr3MoRepair of continuous casting rollers and manufacturing of composite rollers. |
|
MD322 |
— |
0.50 |
— |
0.50 |
2.50 |
— |
W7.0/10.0 |
55 |
for30CrMo、42Cr3MoSurface welding is required for parts with high hardness and wear resistance, and has been successfully used for inner surface welding of seamless steel pipe outer membranes. |
|
MD401-4 |
— |
0.08/0.35 |
— |
3.0/8.0 |
0.5/1.6 |
— |
W0.6/2.0 |
42 |
Used for repairing molds for hot rolling rolls and billet rolls. |
|
MD401-5 |
— |
0.08/0.35 |
11.5/15.0 |
0.5/1.6 |
1.5/3.0 |
other1.5/3.0 |
42 |
Used for repairing molds for hot rolling support rolls and billet rolls. |
|
|
MD403L-4 |
— |
0.20/0.50 |
0.8/2.0 |
3.0/7.0 |
0.6/2.0 |
— |
V1.0 |
50 |
for9Cr2MoWelding of intermediate roll transition layer in series cold rolling. |
|
MD404L-4 |
— |
0.03/0.20 |
1.0/2.0 |
2.5/6.5 |
0.8/2.0 |
— |
V2.0 |
38 |
for9Cr2MoWelding of transition layer for cold rolling support rollers in series. |
|
MD451-4 |
— |
0.18/0.35 |
1.2/2.4 |
— |
— |
— |
Mo1.6/1.6 |
45 |
for9Cr2Mo，45Cr4NiMoVRepair of series cold rolling intermediate rolls and cold rolling working rolls, and manufacturing of composite rolls. |
|
MD556-4 |
— |
0.26/0.50 |
0.8/1.6 |
— |
— |
— |
Mo0.8/2.0 |
55 |
for9Cr2Mo、9Cr5MoRepair of Series Cold Rolling Intermediate Rolls and Manufacturing of Composite Rolls |
