GB/T 1979-1980Diagram of a low magnification texture blemish grading of structural steel (English PDF)
GB/T 1979 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 1979-2025 | Evaluation of macrostructural defects in structural steels - Acid etching method and ultrasonic testing method | Valid |
| GB/T 1979-2001 | Standard diagrams for macrostructure and defect of structural steels | Obsolete |
| GB/T 1979-1980 | Diagram of a low magnification texture blemish grading of structural steel | Obsolete |
GB/T 1979-1980 is obsolete. It has been replaced by GB/T 1979-2001. This page sells the obsolete edition, for projects and contracts that still cite it.
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Level / Type
National · Recommended
Scope
GB/T 1979-1980 (Diagram of a low magnification texture blemish grading of structural steel) is available as an English-translated PDF.
GB/T 1979-1980 is the Chinese national standard "Diagram of a low magnification texture blemish grading of structural steel". It is obsolete: it has been replaced by GB/T 1979-2001.
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Document preview — GB/T 1979-1980
Contents
- Document data
1 Document data
Sector: National standard (Recommended).
Status: obsolete, replaced by GB/T 1979-2001.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.
Referenced standards
Cited by
- GB/T 13314-2025Forged steel work rolls for cold rolling - General technical specifications
- GB/T 15547-2025Blanks of forged steel rolls for cold rolling mill
- GB/T 17107-2025Structural steel bars for forgings
- GB/T 18669-2025Steel for ship anchor chain and offshore mooring chain cables
- GB/T 24587-2025Hot-rolled wire rods for prestressing steel bars of concrete
- GB/T 29913-2025Medium carbon alloy bearing steel
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GB/T 1979-1980
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