Material–Environment Screening Matrix

Use operating conditions to organize an engineering discussion across the material families Zhenling states it processes. This screen does not select a grade or replace design, corrosion, pressure-equipment, or regulatory approval.

Primary exposure Temperature condition Pressure or containment role

Discussion priority

CARBON / ALLOY STEEL

Examples supplied by Zhenling include 20#, 45#, Q235A, Q345D, 12CrMoV, 25CrMo, and 42CrMo.

STAINLESS STEEL

Examples supplied by Zhenling include 303, 304/304L, 316/316L, and 321.

SPECIAL ALLOY

Examples supplied by Zhenling include C276, 904L, and nickel-based alloys for chemical applications.

ALUMINUM ALLOY

Zhenling states that it processes various aluminum alloys; the exact grade remains a project decision.

Start with the drawing and service conditions

Material family, grade, condition, hardness, joining, heat treatment, and inspection must be reviewed together.

Include in the material review

The buyer’s authorized engineering and quality functions retain final responsibility for material suitability and acceptance.

Material–Environment Screening Matrix

Discussion priority

Start with the drawing and service conditions

Include in the material review

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