Similar International Standards
AWS A5.2/A5.2M:2018American Welding Society (AWS), USA
HighCurrent
Specification for Carbon and Low-Alloy Steel Rods for Oxyfuel Gas Welding
Specifies requirements for carbon and low-alloy steel filler rods for oxyfuel gas welding.
EN 12536:2000European Committee for Standardization (CEN), Europe
HighCurrent
Welding consumables - Rods for gas welding of non-alloy and creep-resisting steels - Classification
Covers filler rods for gas welding of non-alloy steels, with a slightly broader scope including creep-resisting steels.
JIS Z 3201:2016Japanese Industrial Standards Committee (JISC), Japan
HighCurrent
Welding rods for mild steel, high tensile strength steel and low temperature service steel for gas welding
Covers gas welding rods for various steels, including mild and high-tensile strength types similar to IS 7280.
BS 1453:1972British Standards Institution (BSI), UK
MediumWithdrawn
Specification for filler materials for gas welding
Historical equivalent from a similar era, specified requirements for gas welding filler materials.
Key Differences
≠IS 7280 uses a classification system of four Grades (I, II, III, IV) based on ranges of ultimate tensile strength. In contrast, AWS A5.2 uses 'R' designations (e.g., R45, R60) indicating the minimum tensile strength in ksi.
≠The chemical composition limits, while controlling the same elements (C, Mn, Si, S, P), differ in their specific maximum values. For instance, the lowest strength grade in AWS A5.2 (R45) has a lower maximum carbon limit (0.08%) than IS 7280 Grade I (0.10%).
≠IS 7280:1974 is a significantly older standard (reaffirmed in 2003) compared to its more modern international counterparts like AWS A5.2:2018, which reflect more recent metallurgical and manufacturing practices.
≠The scope of EN 12536 and JIS Z 3201 is broader than IS 7280, as they explicitly include classifications for creep-resisting steels (EN) and low-temperature service steels (JIS), which are not covered in the Indian standard.
Key Similarities
≈All standards have the same fundamental purpose: to specify requirements for bare steel filler rods used in oxy-fuel gas welding processes.
≈The core chemical elements controlled to ensure weld quality and performance are identical across the standards: Carbon, Manganese, Silicon, Sulfur, and Phosphorus.
≈All standards mandate mechanical testing of an all-weld-metal test specimen, primarily through a tensile test, to verify the strength properties and classify the filler rod.
≈All standards include requirements for the physical condition of the rods, specifying standard sizes (diameters), lengths, and a clean, smooth finish free from contaminants like rust, scale, or grease.