China 700 HB Wear Resistant Steel Plate manufacturers

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700 HB Wear Resistant Steel Plate

Wear-resistant special steels with hardness 400 HB, 450 HB, 500 HB, 550 HB, 600 HB provide high levels of resistance to mechanical wear and are suitable for components exposed to heavy abrasion in use cases such as loading devices, shovels of wheel, loaders, bodies of trough tipping wagons, conveyors, excavator components, road machines, screens and crushers. The range of high hardness, low-alloyed martensitic steel plates have outstanding resistance to especially abrasive wear – typically three to six times higher than classical construction steels.

vera.liang@ztwysteel.com Μήνυμα

Λεπτομέρειες προϊόντος

The plates manufactured are fine-grain melted and can contain microalloying elements such as Nb and V. The higher level of hardness is achieved by direct quenching (accelerated cooling directly after hot rolling) or conventional quenching. On request, guaranteed values for notch impact energy is provided.

Due to their chemical composition wear-resistant plates are well-suited for welding. All tested fusion welding methods can be employed, but metal inert gas shielded arc welding has proved especially effective (low hydrogen input). For reasons of crack prevention, basic-coated electrodes with controlled hydrogen content should be used for manual electric arc welding. Prior to welding, the electrodes must be dried according to manufacturer instructions.

Some of the well-known brands of the manufacturers of wear/abrasion resistant plates are HARDOX, DUROSTAT, RELIA, CREUSABRO, ABREX, ASTRALLOY, EVERHARD, RAEX, QUARD, FORA.

CHEMICAL PROPERTIES

values provided are max. %

GRADE	C	Mn	P	S	Ναι	Cr	Ni	Δευτ.	B
HB400	0.32	1.60	0.025	0.010	0.70	2.50	1.50	0.60	0.004
HB450	0.26	1.60	0.025	0.010	0.70	1.40	1.50	0.60	0.005
HB500	0.30	1.30	0.020	0.010	0.40	2.20	2.00	0.40	0.005
HB500T	0.30	1.60	0.020	0.010	0.70	1.50	1.50	0.60	0.005
HB550	0.44	1.30	0.020	0.010	0.50	1.40	1.40	0.60	0.004
HB600	0.47	1.50	0.015	0.010	0.70	1.20	2.50	0.70	0.005
HB700	0.47	1.40	0.015	0.010	0.50	1.20	2.50	0.80	0.005

MECHANICAL PROPERTIES

typical avarage values

GRADE	Yield Strength	Αντοχή σε εφελκυσμό	Impact Value [@-40 C]	Elongation [A5]
HB400	153 ksi [1050 MPa]	181 ksi [1250 MPa]	45 J	10%
HB450	174 ksi [1200 MPa]	218 ksi [1500 MPa]	50 J	8%
HB500	181 ksi [1250 MPa]	232 ksi [1600 MPa]	37 J	6%
HB500T	181 ksi [1250 MPa]	232 ksi [1600 MPa]	27 J	6%
HB550	203 ksi [1400 MPa]	261 ksi [1800 MPa]	30 J	10%
HB600	225 ksi [1550 MPa]	305 ksi [2100 MPa]	21 J	5%
HB700	275 ksi [1900 MPa]	380 ksi [2630 MPa]	30 J	18%