L'image affichée est à des fins de représentation uniquement et peut ne pas refléter le produit réel.
Détails
Low alloy stick electrode designed for welding 0.50% molybdenum steel
Traits
- Designed for welding 0.50% molybdenum steel
- Premium arc performance
- Easy strike
- Easy slag removal
- Square coating burn-off
Disclaimers
Des informations de service
Vous pourriez également avoir besoin
BEFORE USE, READ AND UNDERSTAND THE SAFETY DATA SHEET (SDS) FOR THIS PRODUCT AND SPECIFIC INFORMATION PRINTED ON THE PRODUCT CONTAINER. SDS Search page
See test result disclaimer
CONFORMANCE
| CONFORMANCES | SPECIFICATION | CLASSIFICATION |
|---|---|---|
| AWS | AWS A5.5 | E7018-A1 H4R |
| ABS | AWS A5.5 | E7018-A1 H4R |
| CWB | CSA W48 | E4918-A1-H4R |
MECHANICAL PROPERTIES
| Classification |
Yield Strength @ 0.2% Offset
MPa (ksi) |
Tensile Strength
MPa (ksi) |
Elongation
% |
Hardness Rockwell B |
|---|---|---|---|---|
| E7018-A1 H4R Requirement | 390 (57) min. | 480 (70) min. | 22 min. | |
| Typical Result, 1 hour @ 620°C (1150°F) | 460-520 (67-75) | 560-620 (81-89) | 22-31 | 88-93 |
DEPOSIT COMPOSITION
| Classification | %C | %Mn | %Mo | %P | %S | %Si |
Diffusible Hydrogen
mL/100g Weld Metal |
1800F H2O - As received | 1800F H2O - After 9 hrs at 80F/80%RH |
|---|---|---|---|---|---|---|---|---|---|
| E7018-A1 H4R Requirement | 0.12 max. | 0.90 max. | 0.40 - 0.65 | 0.03 max. | 0.03 max. | 0.80 max. | 4 max. | 0.3 max. | 0.4 max. |
| Typical Result | 0.04-0.06 | 0.69-0.86 | 0.49-0.58 | 0.01-0.02 | 0.01 max. | 0.38-0.59 | 0.9-3 | 0.1 max. | 0.2-0.4 |
TYPICAL OPERATING PROCEDURES
| Diameter | Polarity⁽¹⁾ |
Current
Amps |
|---|---|---|
| 3/32 in (2.4 mm) | DC+ | 60-110 |
| 3/32 in (2.4 mm) | AC | 65-120 |
| 1/8 in (3.2 mm) | DC+ | 85-160 |
| 1/8 in (3.2 mm) | AC | 90-170 |
| 5/32 in (4.0 mm) | DC+ | 110-210 |
| 5/32 in (4.0 mm) | AC | 115-220 |
NOTES
| Note |
|---|
| ⁽¹⁾ Preferred polarity is listed first. |