Name	Code	Standards
Bars and shapes	В32	TU 14-1-5425-2001, TU 26-12-802-90, TU 14-1-5488-2004
Machines and equipment for oil, petrochemical and gas industry	Г43	TU 26-12-775-90

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	Al	Mo
TU 14-1-5425-2001	0.42-0.49	≤0.03	≤0.02	0.9-1.2	1-1.3	0.15-0.35	≤0.25	Rest	≤0.25	≤0.03	0.25-0.35
TU 26-12-802-90	0.42-0.49	≤0.025	≤0.025	0.65-1.1	0.75-1.2	0.15-0.35	≤0.5	Rest	≤0.25	≤0.025	0.15-0.3

Fe is the basis.
According to TU 14-1-5425-2001, the chemical composition is given for direct reduction steel grade 45ХГМА-ПВ.
According to TU 26-12-802-90 the chemical composition is given for the direct reduction steel 45ХГМА. The steel can be treated with silicocalcium in an amount up to 2 kg / t. When observing the norms of mechanical properties, deviations in chemical composition are allowed: for carbon ± 0.010%, for silicon ± 0.020%, for chromium ± 0.020% for chromium contents up to 1.0% and ± 0.050% for chromium content 1.0% for manganese ± 0.020% for manganese content up to 1.0% and ± 0.050% for manganese content of 1.0% or more, for molybdenum ± 0.020% for nickel, and for 0.050% for nickel.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	KCU, kJ/m²	HB, MPa
Weighted tubes in the delivery condition on the other 26-12-775-90 (samples; in cross-section is specified outside diameter of pipe)
≤171	≥759	≥966	≥13	≥600	285-341
171	≥690	≥931	≥13	≥600	285-341

Description mechanical marks

Name	Description
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d₅	Elongation after rupture
KCU	Toughness
HB	Brinell hardness number

Technological properties

Name	The value
Particularities of production of goods	45ХГМА steel is smelted in electric-arc furnaces with subsequent ladle treatment of integrated and supplied to customers in a cold state in the form of continuous cast billets and ingots for further hot processing, and also serving for the manufacture of heavy drilling and leading pipes. Ingots are cast siphon method in broad upward of the mold with the use of exothermic slag-forming mixtures and. Nepreryvnolityh of the workpiece on the other 26-12-802-90 are supplied in a cold condition after slow cooling in an unheated well without prior heat treatment.

Steel 45ХГМА

Designation

Description

Note

Standards

Chemical composition

Mechanical properties

Description mechanical marks

Technological properties

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