|Cold pull hardness
|Hardening medium||Temper temperature
|After tempering hardness
|salt-bath furnace||controlled atmosphere furnace|
thickness / mm
Samples from the standard for 50 mm (2 in)
|180 ° of cold bending test|
|Hot-rolled/Cold rolling:5 - 150||520||415||16～18||2a||3.5a|
(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).
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
Step Shaft: steel plate/sheet,coil,round bar,flat bar,tube/pipe,Profiled forgings
Diameter : 1mm-2000mm
Size: 50mm * 50mm-600mm *600mm
Plate steel/flat bar:
Size: Thickness: 0.1mm-800mm Width: 10mm to 1500mm
Size: OD: 6-219mm WT: 1-35 mm.
Cold-rolled sheet: Thickness: 2-5mm Width:1000mm Length: 2000mm
Hot-rolled sheet: Thickness:6-80mm Width: 210-610mm
Length: We can supply any length based on the customer's requirement.
Forging/hot rolling/ extrusion of steel.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirement.
UTS according to SEP 1921 C/c,D/d,E/e;A388 or GB/T 6402
Excellent service for all kinds of industries, with advantages of technologies, equipment and price.
We serve you with our honesty, integrity, and professionality.
Good strength and cold, heat pressure processing performance sex and welding is a bit poor performance.
Widely used in the manufacture of sheet, steel bar, steel structure with all kinds of steel, building structure, Bridges, engine, mechanical parts, carburizing or carbon nitrogen were permeability parts, components, support, force not big pole, connecting rod, pin, shaft, screw, nut, rings, etc
GB/T 700-1988 standadr:
Regardless of rank, the chemical composition and mechanical properties (σ s, σ b, the delta and the cold bending) are to be guaranteed
Rolling plate and rod of products, the mechanical properties of the guarantee condition, can according to product characteristics and application requirements, in the standard separately
GB 700-1979 standard
A1 the mechanical properties of the steel guarantee (σ s, σ b, the delta and the cold bending), B1 steel guarantee the chemical composition of the same with Q195
A1 steel cold bending test is additional guarantee conditions
1 no special steel of steel