High Manganese Steel Surfacing Electrode D256 Aws: Efemn-a

Product Description

High manganese steel surfacing electrode D256 AWS: EFeMn-A

Product Description

1. Description

D256 is a surfacing electrode made from high-manganese steel with a low-hydrogen potassium coating. It is suitable for both AC and DC welding (for AC, the no-load voltage should not be lower than 70V). For surfacing welding, it is recommended to use a small current and narrow welding passes. After welding, the red-hot material should be hammered or water-quenched to minimize cracking tendencies. The resulting surfacing metal is austenitic high manganese steel, known for its work-hardening properties, toughness, and wear resistance.

2. Application

D256 is ideal for surfacing welding on various components, including:

• Crushers
• High manganese rails
• Buckets
• Bulldozers

3. Attention

1. Pre-welding Preparation: Bake the electrode at 300-350ºC for 1 hour before use.

2. Worn Parts Treatment: Before surfacing worn high manganese steel parts, remove the fatigue layer or treat it with water toughness. Alternatively, use a chromium manganese steel electrode (e.g., D277).

3. Ventilation: Due to significant yellow smoke produced during surfacing welding, ensure adequate ventilation and operate in a well-ventilated area.

4. Inner Packing

• 2.5mm x 300mm: 5kg per inner box + plastic bag
• 3.2mm x 350mm: 5kg per inner box + plastic bag
• 4.0mm x 400mm: 5kg per inner box + plastic bag

5. Certificates

• ISO 9001
• AWS

6. Slag Characteristics

The slag produced is full and compact when hardened, making it easy to remove.

TYPICAL OPERATING PROCEDURES: (AC,DC)

Diameter (mm)	3.2	4.0	5.0
Current (A)	70-90	100-140	150-180

 

Items	C	Mn	Si	Others
Requirements	≤1.10	11.00-16.00	≤1.30	≤5.00

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FAQ

Q1: Can I have a sample for testing? 
A: Yes, we can support free sample.

Q2: Can I add my logo on the boxes/cartons? 
A: Yes, OEM and ODM are available from us,for the MOQ for OEM/ODM talk with us please. 

Q3: What are the benefits of being a distributor? 
A: Special discount Marketing protection.

Q4: Do you have inspection procedures for welding wires and welding electrode? 
A: 100% self-inspection before packing. We provide Quality Certification for every order. 

Q5: Can we mix itmes in one 20FT container? 
A: Yes,welding wire and welding electrode can mix them in one container.

Q6: Can I have a visit to your factory before the order? 
A: Sure, welcome your visit of factory, or we can have a online meeting for factory inspection.

Q7: What is the lead time for samples and mass production?
A: Samples can be ready within 3-5 working days. For mass production, it usually takes 15-25 working days, depending on the order quantity and customization requirements.

Q8: What payment terms do you accept?
A: We accept T/T (30% deposit in advance, 70% balance against B/L copy), L/C at sight, and Western Union for small orders. Other terms can be negotiated for long-term cooperation.
 

Q9: Do you provide after-sales service?
A: Yes, we offer professional after-sales service. Our team will assist you with any questions or problems regarding product usage, storage, or other aspects after delivery.

 

Q10: Can you provide technical support for your products?
A: Absolutely. We have a professional technical team that can provide guidance on product selection, welding parameters, and troubleshooting to ensure you get the best results from our products.