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For Heat-resisting Steel
   
Welding Rods for Heat-resisting Low Alloy Steel   耐热钢焊条                                      
Item Code Type of Covering Equivalent Norm Welding Position Type of Current Standard & Typical Chemical Composition of Deposited Metal (%) Standard & Typical Mechanical Properties of Deposited Metal Applications
C Mn Si S P Cr Ni Mo V Cu Other Postweld Condition Yield Point
ReL (MPa)		 Tensile Strength
Rm (MPa)		 Elongation            A4 (%) Akv Value (J)
CHH107 Low hydrogen
Sodium		 AWS A5.5  E7015-A1        ISO 3580-B-E 49 15-1M3    EN 1599-E Mo B  F,V,
OH,H		 DC+ ≤0.12
0.068		 ≤0.90
0.69		 ≤0.60
0.31		 ≤0.03
0.009		 ≤0.03
0.016		 — — 0.40-0.65
0.49		 — — — PWHT                 620℃X1h ≥390                                        
460		 ≥490
550		 ≥22
27		  —                   25℃  220     For welding boiler pipelines working temperature of which is below 510℃. Also it is suitable for structures fabricated by normal low alloy tensile strength steels.
CHH108 Iron powder        Low hydrogen Potassium AWS A5.5 E7018-A1         ISO 3580-B-E 49 18-1M3      EN 1599-E Mo B  F,V,
OH,H		 AC≥70V
or DC+		 ≤0.12
0.063		 ≤0.90
0.76		 ≤0.80
0.28		 ≤0.03
0.013		 ≤0.03
0.015		 — — 0.40-0.65
0.57 		 — — — PWHT                 620℃X1h ≥390
410		 ≥490
510		 ≥22
30		  —                  25℃  220      For welding boiler pipelines working temperature of which is below 510℃. Also it is suitable for structures fabricated by normal low alloy tensile strength steels.
CHH127 Low hydrogen
Sodium		 AWS A5.5 E9015-G           ISO 3580-B-E 62 15-G        EN 1599-E Z B F,V,
OH,H		 DC+ __ 
0.06		 ≥1.00
1.20		 ≥0.80
0.20		 ≤0.03
0.006		 ≤0.03
0.007		 ≥0.30
0.32		 ≥0.50
1.10		 ≥0.20
0.35		 ≥0.10
0.15		 ≥0.20
0.30		 — PWHT                 620℃X1h ≥530                                        
550		 ≥620
650		 ≥17
20		  —                 -40℃  58     It is one kind of bainite & ferrite type welding rods and it is suitable for welding structures fabricated by heat-resisting steels such as WB36. 
CHH202 Lime titania ISO 3580-B-E 55 13-CM         EN 1599-E CrMo0.5 R F,V,
OH,H		 AC or DC+ 0.05-0.12
0.077		 ≤0.90
0.60		 ≤0.60
0.16		 ≤0.035
0.017		 ≤0.035
0.024		 0.40-0.65
0.53		 — 0.40-0.65
0.51		 — — — PWHT                 620℃X1h ≥440
510		 ≥540
600		 ≥16
24		  25℃  ≥16  24     Welding boiler pipelines or heat transmitters, working temperature of which is below 510℃. Also it is suitable for structures made by low alloy pearlitic high tensile strength steels.
CHH207 Low hydrogen
Sodium		 ISO 3580-B-E 55 15-CM               EN 1599-E CrMo0.5 B  F,V,
OH,H		 DC+ 0.05-0.12
0.070		 ≤0.90
0.70		 ≤0.60
0.53		 ≤0.035
0.015		 ≤0.035
0.015		 0.40-0.65
0.50		 — 0.40-0.65
0.54		 — — — PWHT                 620℃X1h ≥440
520		 ≥540
620		 ≥17
25		  25℃  ≥27  150     Suitable for welding high temperature, high press chemical equipment made by low alloy CrMo pearlitic steels working temperature of which is below 510℃.
CHH302 Lime titania ISO 3580-B-E 55 13-1CM       EN 1599-E CrMo1 R F,V,
OH,H		 AC or DC+ 0.05-0.12
0.073		 ≤0.90
0.57		 ≤0.60
0.37		 ≤0.035
0.016		 ≤0.035
0.023		 0.80-1.50
1.07		 — 0.40-0.65
0.63		 — — — PWHT                 620℃X1h ≥440
600		 ≥540
690		 ≥16
19		 —                  Suitable for fabricating structures of boiler pipes, high press vessels, petroleum thermal cracking equipment, which work temperature is below 520℃. 
CHH307 Low hydrogen
Sodium		 ISO 3580-B-E 55 15-1CM       EN 1599-E CrMo1 B F,V,
OH,H		 DC+ 0.05-0.12
0.067		 ≤0.90
0.70		 ≤0.60
0.37		 ≤0.035
0.011		 ≤0.035
0.015		 0.80-1.50
1.14		 — 0.40-0.65
0.51		 — — — PWHT                 620℃X1h ≥440
510		 ≥540
610		 ≥17
24		  25℃  ≥27  160     For welding low alloy CrMo steel structures, which work temperature is below 520℃, such as boiler pipes, petroleum thermal cracking equipment, etc.
CHH307A Low hydrogen
Sodium		 ISO 3580-B-E 55 15-G        EN  1599-E CrMo1 B F,V,
OH,H		 DC+ ≤0.12
0.065		 0.50-0.90
0.72		 ≤0.60
0.30		 ≤0.008
0.007		 ≤0.010
0.007		 1.00-1.50
1.25		 — 0.40-0.65
0.54		 — — — PWHT                 675℃X5h ≥295
420		 450-590
540		 ≥19
24		  -30℃  ≥27  120     It is one knid of extra low S & low P low alloy steel welding rod. Suitable for welding important structures made by 15CrMoR(H) steel, which work temperature below 520℃, such as boiler pipes, high pressure vessels, petroleum thermal cracking equirment, etc. Also it could welding cast steel of 30CrMnSi.
CHH307L Low hydrogen
Sodium		 AWS A5.5  E7015-B2L         ISO 3580-B-E 52 15-1CML   EN  1599-E CrMo1L B F,V,
OH,H		 DC+ ≤0.05
0.040		 ≤0.90
0.80		 ≤1.00
0.48		 ≤0.03
0.010		 ≤0.03
0.012		 1.00-1.50
1.20		 — 0.40-0.65
0.50		 — — — PWHT                 690℃X1h ≥390
480		 ≥520
580		 ≥19
25		  —                  25℃  180      Suitable for welding important structures made by 15CrMo steel, which work temperature below 520℃, such as boiler pipes, high pressure vessels, petroleum thermal cracking equirment, etc. Also it could weld cast steel of 30CrMnSi.
CHH308 Iron powder
Low hydrogen
Potassium		 AWS A5.5 E8018-B2         ISO 3580-B-E 55 18-1CM         EN 1599-E CrMo1 B  F,V,
OH,H		 AC≥70V
or DC+		 0.05-0.12
0.080		 ≤0.90
0.73		 ≤0.80
0.24		 ≤0.03
0.009		 ≤0.03
0.013
1.00-1.50
1.31		 — 0.40-0.65
0.52		 — — — PWHT                 690℃X1h ≥460
540		 ≥550
640		 ≥19
22		  —                  25℃  170     For welding low alloy CrMo steel structures, which work temperature is below 520 ℃, such as boiler pipes, petroleum thermal cracking equipment, etc.
CHH312 Lime titania ISO 3580-B-E 55 13-G                           EN 1599-E Z R F,V,
OH,H		 AC or DC+ 0.05-0.12
0.085		 ≤0.90
0.56		 ≤0.60
0.26		 ≤0.035
0.015		 ≤0.035
0.028		 0.80-1.50
1.10		 — 0.40-0.65
0.48		 0.10-0.35
0.16		 — — PWHT                 730℃X2h ≥440
520		 ≥540
630		 ≥16
22		  25℃  ≥27  60      Suitable for welding structures made by heat resisting low alloy pearlitic steel which work temperature is below 540℃, such as boiler pipes, high press vessels, petroleum thermal cracking equipment.
CHH317 Low hydrogen
Sodium		 ISO 3580-B-E 55 15-G           EN 1599-E Z B F,V,
OH,H		 DC+ 0.05-0.12
0.066		 ≤0.90
0.70		 ≤0.60
0.37		 ≤0.035
0.012		 ≤0.035
0.015		 0.80-1.50
1.12		 — 0.40-0.65
0.52		 0.10-0.35
0.18		 — — PWHT                 730℃X2h ≥440
540		 ≥540
640		 ≥17
23		  25℃  ≥27  150      For welding low alloy CrMo pearlitic steels, such as high temperature, high presure boiler pipeline, petroleum cracking equipment, working temperature of which is below 540 ℃.
CHH327 Low hydrogen
Sodium		 ISO 3580-B-E 55 15-G                           EN 1599-E Z B F,V,
OH,H		 DC+ 0.05-0.12
0.073		 0.70-1.10
0.74		 ≤0.60
0.43		 ≤0.035
0.011		 ≤0.035
0.016		 0.80-1.50
1.10		 — 0.70-1.00
0.77		 0.20-0.35
0.24		 — W   0.25-0.50               0.35 PWHT                 730℃X5h ≥440
540		 ≥540
640		 ≥17
23		  25℃  ≥27  140     Suitable for welding low alloy 15CrMoV steels working temperature of which is below 570℃.
CHH337 Low hydrogen
Sodium		 ISO 3580-B-E 55 15-G               EN 1599-E Z B F,V,
OH,H		 DC+ 0.05-0.12
0.063		 ≤0.90
0.70		 ≤0.60
0.31		 ≤0.035
0.010		 ≤0.035
0.013		 0.80-1.50
1.22		 — 0.70-1.00
0.86		 0.15-0.40
0.27		 — Nb   0.10-0.25
0.15		 PWHT                 730℃X5h ≥440
550		 ≥540
670		 ≥17
22		 —                 For welding low alloy CrMoV steels working temperature of which is below 570℃.
CHH347 Low hydrogen
Sodium		 ISO 3580-B-E 55 15-G                      EN 1599-E Z B F,V,
OH,H		 DC+ 0.05-0.12
0.062		 ≤1.00
0.90		 ≤0.60
0.13		 ≤0.035
0.009		 ≤0.035
0.017		 1.50-2.50
1.95		 — 0.30-0.80
0.61		 0.20-0.60
0.44		 W 0.20-0.60    0.38
B  0.001-0.003
0.002		 PWHT                 760℃X2h ≥440
530		 ≥540
630		 ≥17
23		  25℃  ≥27  140      Welding corresponding low alloy steel structures, such as high temperature, high pressure turbogenerator unit, boiler pipeline, working temperature of which is below 620 ℃.
CHH407 Low hydrogen
Sodium		 AWS A5.5 E9015-B3         ISO 3580-B-E 62 15-2C1M   EN 1599-E CrMo2 B F,V,
OH,H		 DC+ 0.05-0.12
0.067		 ≤0.90
0.65		 ≤1.00
0.38		 ≤0.030
0.012		 ≤0.030
0.016		 2.00-2.50
2.23		 — 0.90-1.20
1.02		 — — — PWHT                 690℃X1h ≥530
570		 ≥620
680		 ≥17
20		  —                 25℃  140      Welding of corresponding low alloy steel structures, such as gas transmission pipeline with high temperature, high pressure turbogenerator unit and boiler, working temperature of which is below 550 ℃.
CHH407A Low hydrogen
Sodium		 AWS A5.5  E9015-B3      ISO 3580-B-E 55 15-2C1M      EN 1599-E CrMo2 B F,V,
OH,H		 DC+ 0.05-0.12
0.070		 ≤0.90
0.78		 ≤1.00
0.32		 ≤0.030
0.004		 ≤0.030
0.006		 2.00-2.50
2.25		 — 0.90-1.20
0.96		 — — — PWHT                 690℃X8h ≥530
530		 ≥620
625		 ≥17
21		 —                    -30℃ 120      It is one knid of extra low S & low P low alloy steel welding rod. Suitable for welding important structures made by 2.25CrMo heat-resisting steel and which work temperature below 550℃, such as high prssure & high temterature pipes, chemical machineary, petroleum thermal cracking equirments, etc. 
CHH407L Low hydrogen
Sodium		 AWS A5.5  E8015-B3L     ISO 3580-B-E 55 15-2C1ML     EN 1599-E CrMo2L B F,V,
OH,H		 DC+ ≤0.05
0.04		 ≤0.90
0.80		 ≤1.00
0.48		 ≤0.03
0.01		 ≤0.03
0.012		 2.00-2.50
2.20		 — 0.90-1.20
1.12		 — — — PWHT                 690℃X1h ≥460
540		 ≥550
630		 ≥19
20		  —                   25℃  170      It is suitable for welding important structures made by 2.25CrMo heat-resisting steel and which work temperature below 550℃, such as high prssure & high temterature pipes, chemical machineary, petroleum thermal cracking equirment, and so on. 
CHH408 Iron powder        Low hydrogen Potassium AWS A5.5 E9018-B3         ISO 3580-B-E 62 18-2C1M      EN 1599-E CrMo2 B F,V,
OH,H		 AC≥70V
or DC+		 0.05-0.12
0.080		 ≤0.90
0.75		 ≤0.80
0.24		 ≤0.030
0.010		 ≤0.030
0.012		 2.00-2.50
2.34		 — 0.90-1.20
1.14		 — — — PWHT                 690℃X1h ≥530
580		 ≥620
680		 ≥17
20		  —                  25℃  180      Suitable for fabricating structures made by Cr2.5Mo low alloy steels, which working temperature below 550℃, e.g. equipments of chemical and petroleum industries as well as high temperature, high press pipes.
CHH417 Low hydrogen
Sodium		 ISO 3580-B-E 55 15-G                          EN 1599-E Z B F,V,
OH,H		 DC+ 0.05-0.12
0.08		 ≤1.00
0.80		 ≤0.60
0.40		 ≤0.035
0.010		 ≤0.035
0.020		 2.40-3.00
2.60		 — 0.70-1.00
0.80		 0.25-0.50
0.30		 — Nb
0.35-0.65                0.40		 PWHT                 730℃X4h ≥440
500		 ≥540
670		 ≥17
22		 —                  Welding low alloy 12Cr3MoVSiTiB pearlitic steel structures,such as high temperature high pressure boiler pipeline, working temperature of which is below 620℃.
CHH427 Low hydrogen
Sodium		 AWS A5.5 E9015-G           ISO 3580-B-E 62 15-G         EN 1599-E Z B  F,V,
OH,H		 DC+ __ 
0.06		 ≥1.00
0.60		 ≥0.80
0.25		 ≤0.03
0.008		 ≤0.03
0.009		 ≥0.30
2.10		 ≥0.50
0.65		 ≥0.20
0.10		 ≥0.10
0.20		 ≥0.20
0.32		 Nb     0.02                   W     1.45       PWHT                 750℃X2h ≥530
540		 ≥620
630		 ≥17
19		  —                   25℃  120     It is one kind of bainite heat resisting welding rods specialized for welding pipes on cooling wall of industrial boilers. 
CHH437 Low hydrogen
Sodium		 AWS A5.5 E9015-G           ISO 3580-B-E 62 15-G         EN 1599-E Z B  F,V,
OH,H		 DC+ __ 
0.06		 ≥1.00
0.55		 ≥0.80
0.25		 ≤0.03
0.008		 ≤0.03
0.009		 ≥0.30
2.10		 ≥0.50
0.55		 ≥0.20
1.00		 ≥0.10
0.19		 — Nb     0.003                        PWHT                 740℃X2h ≥530
540		 ≥620
650		 ≥17
18		 —                   25℃  120      It is one kind of bainite heat resisting welding rods specialized for welding T/P23 pipes on cooling wall of industrial boilers. 
CHH507R Low hydrogen
Sodium		 ISO 3580-B-E 55 15-G         EN 1599-E Z B F,V,
OH,H		 DC+ ≤0.12
0.074		 0.50-0.90
0.77		 ≤0.50
0.48		 ≤0.02
0.007		 ≤0.03
0.022		 4.50-6.00
5.19		 — 0.40-0.70
0.55		 0.10-0.35
0.25		 ≤0.50
0.52		 — PWHT                 750℃X4h — ≥540
645		 ≥20
22		  25℃  ≥41  157      Suitable for welding high pressure vessels that fabricated by Cr5MoV pearlitic heat resisting steels.
CHH517 Low hydrogen
Sodium		 AWS E8015-B6                   EN 1599-E CrMo5 B                ISO 3580-B-E 55 15-5CM B F,V,
OH,H		 DC+ 0.05-0.10
0.06		 ≤1.00
0.75		 ≤0.90
0.51		 ≤0.03
0.012		 ≤0.03
0.015		 4.00-6.00
5.18		 ≤0.40
0.02		 0.45-0.65
0.53		 — — — PWHT                 740℃X1h ≥460
550		 ≥550
680		 ≥19
22		  —                  25℃  120      It is suitable for welding structures made by Cr5Mo pearlitic steels, e.g. pipes which work condition need to bear 400℃ and need to resist corrosion of hydrogen. 
CHH717 Low hydrogen
Sodium		 AWS A5.5 E9015-B9          ISO 3580-B-E 62 15-9C1MV     EN 1599-E CrMo91 B F,V,
OH,H		 DC+ 0.08-0.13
0.094		 ≤1.20
0.75		 ≤0.30
0.22		 ≤0.01
0.004		 ≤0.01
0.009		 8.0-10.5
9.32		 ≤0.80
0.66		 0.85-1.20
1.03		 0.15-0.30
0.208		 Cu ≤ 0.25   0.020
N   0.02-0.07          0.030		 Nb 0.02-0.10
0.053
Al ≤0.04
0.005		 PWHT                 760℃X6h ≥530
630		 ≥620
740		 ≥17
21		  —                  25℃  80      Suitable for fabricating pipes of supercritical steam turbines and boilers, which made by martensite heat resisting steels. Both preheating and interpass temperature should be 232℃-288℃ and the weld zone should be tempered at 730℃-760℃ for 6 hours after welding.
CHH727 Low hydrogen
Sodium		 AWS  A5.5 E9015-G         ISO 3580-B-E 62 15-G          EN 1599-E Z B F,V,
OH,H		 DC+ __ 
0.102		 ≥1.00
0.67		 ≥0.80
0.28		 ≤0.03
0.008		 ≤0.03
0.009		 ≥0.30
9.12		 ≥0.50
0.659		 ≥0.20
0.51		 V 0.15-0.30
0.19
W     1.60		 Cu ≥ 0.20   0.31
N        0.026		 Nb 0.02-0.10
0.055
Al ≤0.04
0.004		 PWHT                 765℃X4h ≥530
600		 ≥620
700		 ≥17
18		 —                   25℃  80      Suitable for welding CrMoNiWVNb alloy steel, especially for T92、P92、Nf616 heat-resisting steels. Weld piece should be pre-heated to 200℃-250℃ before welding and interpass temperature in welding should be 260℃－300℃.
CHH737 Low hydrogen
Sodium		 AWS A5.5 E 80 15-B8            EN 1599-E CrMo9 B  F,V,
OH,H		 DC+ 0.05-0.10
0.07		 ≤1.00
0.75		 ≤0.90
0.30		 ≤0.03
0.012		 ≤0.03
0.015		 8.00-10.50
9.00		 ≤0.40
0.20		 0.85-1.20
0.95		 — — — PWHT                 740℃X1h ≥460
560		 ≥550
650		 ≥19
22		  —                   25℃  100      It is suitable for welding structures made by CrMo9 heat-resisting steels, e.g. steam pipes. 

 

       
             
   
 

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Last modified: April 25, 2008