identify the h4 in the aws classification for mild steel electrodes.

hydrogen level in ml/100 g
welding position
minimum tensile strength in ksi
indicates impact requirements
electrode
type of coating and current
indicates requirements of absorbed moisture test

e7018-1 h4r

Question

identify the h4 in the aws classification for mild steel electrodes.

hydrogen level in ml/100 g
welding position
minimum tensile strength in ksi
indicates impact requirements
electrode
type of coating and current
indicates requirements of absorbed moisture test

e7018-1 h4r

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "direct_cot", "multiple_choice_formatter", "explain_then_answer", "tutor", "mastery_adaptive_brevity" ], "needs_drawing": false, "concepts_used": [ "AWS Electrode Classification" ], "new_concepts": [], "current_concepts": [ "AWS Electrode Classification" ] } ## Identify the components of the AWS classification Using the *AWS Electrode Classification* knowledge point $$ \begin{aligned} &\text{E} ightarrow \text{Electrode}\ &\text{70} ightarrow \text{Minimum tensile strength in KSI (70,000 psi)}\ &\text{1} ightarrow \text{Welding position}\ &\text{8} ightarrow \text{Type of coating and current}\ &\text{-1} ightarrow \text{Indicates impact requirements}\ &\text{H4} ightarrow \text{Hydrogen level in ml/100 g (maximum 4 ml of diffusible hydrogen per 100 g of weld metal)}\ &\text{R} ightarrow \text{Indicates requirements of absorbed moisture test (moisture resistant)} \end{aligned} $$

Hydrogen level in ml/100 g

Welding position

Minimum tensile strength in KSI

Indicates impact requirements

Electrode

Type of coating and current

Indicates requirements of absorbed moisture test

{ "subject": "Others", "question_type": "Multiple Choice", "knowledge_point": [ "Others", "Welding Technology", "AWS Electrode Classification" ] }

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Identify the components of the AWS classification

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