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Steel SV-07ХН3МД

Designation

Name The value
Designation GOST Cyrillic Св-07ХН3МД
Designation GOST Latin Cb-07XH3MD
Transliteration Sv-07HN3MD
The chemical elements 07CrН3MoCu

Description

Steel SV-07ХН3МД usedfor producing welding rod, welding, surfacing and production of electrodes.

Note

A steel alloy.

Standards

Name Code Standards
Sectional and shaped rolling В32 TU 14-1-2203-77, TU 14-1-4054-85
Welding and cutting of metals. Soldering, riveting В05 TU 14-1-4345-87

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu Al Ti Mo
TU 14-1-4054-85 0.04-0.09 ≤0.012 ≤0.015 0.3-0.6 0.85-1.1 ≤0.7 2.8-3.2 The rest 0.85-1.15 ≤0.05 0.12 0.5-0.65
TU 14-1-2203-77 0.04-0.09 ≤0.012 ≤0.015 0.3-0.6 0.85-1.1 0.15-0.35 2.8-3.2 The rest 0.85-1.15 - - 0.5-0.65
Fe is the basis.
According to TU 14-1-4054-85 the chemical composition is given for steel grade Sv-07HN3MD-Sh. The titanium content is calculated. The nitrogen content in the rod must not be more than 0.015%. It is allowed to supply wire with a deviation from the norms of chemical composition in accordance with paragraph 3.5. GOST 2246, subject to other requirements of the Specification.
According to TU 14-1-2203-77 the chemical composition is given for the welding wire of the brand Sv-07HN3MD. In the steel, an increased content of phosphorus is allowed to be 0.0050%. In the steel, the determination of nitrogen and colored impurities - arsenic, lead, antimony and tin - is performed. The results of the control are optional.

Technological properties

Name The value
Macrostructure and contamination In the macrostructure of wire rod, are not allowed discontinuity of the metal caused by the presence of shrinkage, axial looseness, bubbles, cracks, delamination and inclusions.
Microstructure Wire rod microstructure should be uniform. Padalka (martensitic and rotomachinery areas) is not allowed.

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