Technical specifications

Steel structural high machinability cutting. It is sulphurous-manganese steel containing lead. According to GOST 1414−75, the Brinell hardness of hot-rolled steel HB 10 ^-1 = 170 MPa, and the hardness of the calibrated rolled steel of HB 10 ^-1 = 207 MPa.

Application

Manufacture of steam and superheater pipes of ultrahigh-pressure plants with a long service life at temperatures up to + 700 ° C; shaped profiles of high accuracy

Percentage composition, GOST 1414 — - 75

C	Si	Mn	Ni	S	P	Cr	Cu	Pb
0.1 — 0.17	≤0.12	1 — 1.3	≤0.25	0.15 — 0.3	≤0.1	≤0.25	≤0.25	0.15 — 0.3

Mechanical properties (temperature 20 ° C)

Assortment	GOST	sv	sT	d5	y
-		MPa	MPa	%	%
Rolled hot-rolled steel	1414−75	410		20	thirty
Rental calibrated. cold-worked,	— «---	490	390	10

1. sв — Short-term strength limit
2. sT — Proportionality limit (yield stress for permanent deformation)
3. d5 — Elongation at break
4. y — Relative contraction

Foreign analogues

Germany (DIN, WNr): 9SMnPb28

Buy

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Delivery, price

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