Mature Manufacture Technology Isc A30304 Steel Impact Toughness Value - China

Regarding the impact toughness value of ISC A30304 steel, the following points should be noted:

1 - Correspondence between standards and materials

ISC is the old code of Japanese Industrial Standard (JIS), which has now been replaced by JIS.

If the user actually refers to other standards (such as ASTM, GB, etc.

), the material grade needs to be further confirmed.

2 - Typical value of impact toughness

The impact toughness of ISC A30304 steel is usually high.

Impact toughness value αkv (J/cm): ≥78(8)

Typical Charpy impact value (Charpy V-notch, room temperature):

≥100 J (the specific value is affected by factors such as heat treatment and specimen orientation).

Cryogenic performance: Good toughness can still be maintained at -196°C (austenite structure has no brittle transformation).

3 - Key influencing factors

Cold working: May lead to a decrease in toughness.

Sensitization treatment: Carbide precipitation will reduce corrosion resistance and toughness.

Test standard: JIS Z 2242 (Charpy impact test method).

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