Q420 lamina ferro

Q420 Steel Introduction
Q420 chalybs est Sinica chalybs gradus ardui Alloy Altissimi Roboris Structural Chalybis, Fortitudo cede est 420 MPa, parametri sunt probati cum 16mm diametro ferrei vel laminae ferreae, et vis distrahens 520-680 Mpa est, materia densitatis 7.85 g/ /cm3. Secundum GB/T 1591-2008, Q420 habet 5 gradus qualitates:  Q420A, Q420B, Q420C, Q420D et Q420E. Nam Q420 ferrum aequivalens, chemicae compositio et proprietatibus mechanicis, quaeso vide tabulas infra contentas.
Features et Usus
Q420 ferrum altum vires habet, praesertim in statu normalized vel normalizato plus temperato, magnis comprehensivis proprietatibus mechanicis, adhiberi potest in magnis navibus, pontibus, statio instrumenti potentiae, mediae et magnae pressionis boilers, vasorum pressionum altarum, machinis elevatis, machinis fodiendis ac aliae magnae partes structurae iunctae.

De compositione chemica Q420 Ferro

		Chemical Compositio % (GB/T 1591 – 2008)
Steel Gradus	Gradus	C (≤)	Si (≤)	Mn (≤)	P (≤)	S (≤)	Nb (≤)	V (≤)	Ti (≤)	Cr (≤)	Ni (≤)	Cu (≤)	N (≤)	Mo (≤)	B (≤)	Als (≥)
Q420	Q420A	0.20	0.50	1.70	0.035	0.035	0.07	0.20	0.20	0.30	0.80	0.30	0.015	0.20	-	-
	Q420B				0.035	0.035										-
	Q420C				0.030	0.030										0.015
	Q420D				0.030	0.025										0.015
	Q420E				0.025	0.020										0.015

		Chemical Compositio % (GB/T 1591 – 2018)
Steel Gradus	Gradus	C (≤)	Si (≤)	Mn (≤)	P (≤)	S (≤)	Nb (≤)	V (≤)	Ti (≤)	Cr (≤)	Ni (≤)	Cu (≤)	N (≤)	Mo (≤)	B (≤)
Q420	Q420B	0.20	0.55	1.70	0.035	0.035	0.05	0.13	0.05	0.30	0.80	0.40	0.015	0.20	-
	Q420C				0.030	0.030

Table-2, Carbonis Aequivalent Pretio (CEV)
Ferrum tradidit in calidum statum advolvit (ustionem analysis fundatur)

		CEV (fractio Missae ≤%); Crassitudine nominatim vel diametralem
Steel Gradus	Quality Grade	≤ 30	30 < ≤ 63	63 < ≤ 150	150 < ≤ 250	250 < ≤ 400
Q420	Q420B	0.45 (CEV)	0.47	0.48	0.49	-
	Q420C

Table-3, Q420 Steel Mechanical Properties (Hot convolvit)

		Crassitudo, vel Dia. (Ø) mm; Praebe Vires (≥N/mm2)
Steel Gradus	Qualitas	≤16	16< ≤40	40 < ≤63	63 < ≤ 80	80 < ≤ 100	100 < ≤ 150	150 < ≤ 200	200 < ≤ 250	250 < ≤ 400
Q420	Q420B	420	410	390	370	370	350	-	-	-
	Q420C

		Diae. (Ø) mm; Fortitudo tensile(N/mm2)
Steel Gradus	Qualitas Level	≤100	100 < ≤ 150	150 < ≤ 250	250 < ≤ 400
Q420	Q420B	520 – 680	500 – 650	-	-
	Q420C

Table-4, Elongation

		Diae. (Ø) mm; Prolongatio (%)
Steel Gradus	Sample directionem	≤40	40 < ≤ 63	63 < ≤ 100	100 < ≤ 150	150 < ≤ 200	250 < ≤ 400
Q420	Horizontal	20	19	19	18	-	-
	Vertical	21	20	20	19	-	-

Q420 ferrum aequivalens US ASTM, Europae EN, Germania DIN, Iaponia JIS, Gallia NF, UK BS, ISO vexillum (Ad proposita tantum referentia)

China

USA

Germania

Iaponica

Gallia

UK

ISO

Standard

Gradus

Standard

Gradus

Standard

Gradus

Standard

Gradus

Standard

Gradus

Standard

Gradus

Standard

Gradus

GB/T 1591 – 2008

Q420A

ASTM A572M, ASTM A633M

Gr.60, Gr.E

NF A36-201

E420-1

ISO 4996; ISO 4951

HS420D E420CC

GB/T 1591 – 2008

Q420B

ASTM A572M, ASTM A633M

Gr.60, Gr.E

DIN EN 10113-2, DIN EN 10113-3

S420NL, S420ML

JIS G3124

SEV295, SEV345

NF EN 10113-2, NF EN 10113-3

S420NL, S420ML

BS EN 10113-2, BS EN 10113-3

S420NL S420ML

ISO 4996; ISO 4951

HS420D E420CC

GB/T 1591 – 2008

Q420C

ASTM A678M, ASTM A656M

Gr.B, Type7

DIN EN 10113-2, DIN EN 10113-3

S420NL, S420ML

JIS G3124

SEV295, SEV345

NF EN 10113-2, NF EN 10113-3

S420NL, S420ML

BS EN 10113-2, BS EN 10113-3

S420NL S420ML

ISO 4996; ISO 4951

HS420D E420CC

GB/T1591 - 2008

Q420D

ASTM A678M, ASTM A656M

Gr.B, Type7

DIN EN 10113-2, DIN EN 10113-3

S420NL, S420ML

JIS G3124

SEV295, SEV345

NF EN 10113-2, NF EN 10113-3

S420NL, S420ML

BS EN 10113-2, BS EN 10113-3

S420NL S420ML

GB/T1591 - 2008

Q420E

ASTM A678M, ASTM A656M

Gr.B, Type7

DIN EN 10113-2, DIN EN 10113-3

S420NL, S420ML

JIS G3124

SEV295, SEV345

NF EN 10113-2, NF EN 10113-3

S420NL, S420ML

BS EN 10113-2, BS EN 10113-3

S420NL S420ML