Q235

Inquiries : 153 - 2015/11/26 13:31:59

Mechanical properties ofgrade Q235

Technological propertiesof grade Q235

Hardness and heattreatment specification of grade Q235

Annealing hardness HBS	Cold pull hardness HBS	Preheating temperature ℃	Quenching temperature ℃		Holding time min	Hardening medium	Temper temperature ℃	After tempering hardness ≥HRC
			salt-bath furnace	controlled atmosphere furnace
235	262	788	1191	1204	5～15	air cooling	522	60

Steel plate/Sheet thickness / mm	σb MPa	σs ≥/MPa	δ Samples from the standard for 50 mm (2 in)	180 ° of cold bending test
				longitudinal	horizontal
Hot-rolled/Cold rolling:5 - 150	520	415	16～18	2a	3.5a
Note: (1) listed in the table apex diameter (d), to steel thickness (a) multiples said. (2) in the ASTM A6 standard specified scope can meet any additional conditions. (3) from the standard for 50 mm (2 in). Mechanical properties Mechanische Eigenschaften Caracteristiques mecaniques ReH Minimum yield strength / Mindestwert der oberen Streckgrenze / Limite d’elasticite minimale Rm Tensile strength / Zugfestigkeit / Resistance a la traction A Minimum elongation / Mindestwert der Bruchdehnung / Allongement minimal J Notch impact test / Kerbschlagbiegeversuch / Essai de flexion par choc

Q235 steel description:

Step Shaft: steelplate/sheet,coil,round bar,flat bar,tube/pipe,Profiled forgings

Q235 steel Specificationsor Size:

Roundbar:
Diameter : 1mm-2000mm

Squarebar:
Size: 50mm * 50mm-600mm *600mm

Platesteel/flat bar:
Size: Thickness: 0.1mm-800mm Width: 10mm to 1500mm

Tube/pipe:
Size: OD: 6-219mm WT: 1-35 mm.

Cold-rolledsheet: Thickness: 2-5mm Width:1000mm Length: 2000mm

Hot-rolledsheet: Thickness:6-80mm Width: 210-610mm

Length: We can supply anylength based on the customer's requirement.

Forging/hot rolling/ extrusionof steel.

Forging:Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

Finished goods condition: hotforging/hot rolling + annealing/normalizing + tempering/quenching +tempering/any conditions based on the customer's requirement

Surface conditions: scaled (hotworking finish)/ground/rough machining/fine machining/based on the customer'srequirement

Furnaces for metallurgicalprocessing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.

Ultrasonic inspection: 100%ultrasonic inspection for any inperfections or based on the customer'srequirement.

UTS according to SEP 1921C/c,D/d,E/e;A388 or GB/T 6402