DIN 17155 HI steel plate

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10-May-2024

KUNFENG is a professional steel product exporter located in Shanghai China. We are a large-scale steel stockist and deep-processing enterprise; we keep science and technology as the impetus to developing our company. Our annual production capability is 3,000,000 tons. We are specialized in producing and exporting HI / HII steelwork etc. HI / HII steelwork are in DIN 17155 standard. Their steel number is 1.0345 and 1.0425 which are mainly used for boilers and pressure vessels with elevated temperatures.

HI / HII Steel Machining Parts Chemical Composition

Steel Grade		HI / HII steel machining parts Chemical composition
Steel name	Steel number	C	Si	Mn	P max	S max	Al	Cr	Cu max	Mo	Nb max	Ni max	Ti max	V max
HI	1.0345	0.16	0.35	0.40 to 1.20	0.035	0.030	≥0.020	0.25	0.30	0.10	0.01	0.30	0.03	0.03
HII	1.0425	0.20	0.35	0.50 to 1.30	0.035	0.030	≥0.020	0.25	0.30	0.10	0.01	0.30	0.03

HI / HII steelstructure mechanical properties

steel grade		Upper yield point ReH					tensile strength Rm For product thicknesses in mm			Elongation at break (L=5d00)		Impact strength (ISO-V transverse specimens) Average of three samples
Steel name	Steel number	Upper yield point ReH					tensile strength Rm For product thicknesses in mm			Elongation at break (L=5d00)
		16	16 to 40	40 to 60	60 to 100	100 to 150	60	60 to 100	100 to 150	60	60 to 150	60	60 to 150	60	60 to 150
		N/mm2 min					N/mm2			% min		at 0C J min		at 20C J min
HI	1.0345	235	225	215	200	185	360 to 480	360 to 480	350 to 480	24	23	31	31	-	-
HII	1.0425	265	255	245	215	200	410 to 530	410 to 530	400 to 530	22	21	31	31	-	-

HI / HII steel machining parts processing: cutting, drilling, bending, beveling, welding

HI / HII steelstructure Testing equipment: Ray detection machine, Ultrasonic flaw detector, Universal testing machine, Axial force tester, Torque tester etc.

HI / HII steelwork Trading terms: FOB, CNF, CIF and other trading terms.

As the professional Chinese DIN 17155 HI / HII steelwork supplier, KUNFENG will supply you the HI / HII steelstructure with good quality and complete after-sale service and the reasonable price. We committed to exceed customer’s expectation on the basis of quality, price, and delivery. We sincerely hope to establish long-term cooperation with you on the basis of mutual benefit, reciprocity and common development. So if you need any help, please be free to contact us. We will give you the best quote of HI / HII steelspare parts.