What is the BBNSteel company a242 type 1 steel bar main products

The company has allocated special environmental protection facilities for all a242 type 1 steel bar pollution sources, strengthened the recycling of waste resources and improved the efficiency of resource utilization. At present, the recovery and utilization rate of solid wastes such as iron slag, steel slag, iron bearing dust, a242 type 1 steel bar steel mill scale, environmental protection dust has reached 100%.

S355NL normalized steel has different impact energy requirement for impact tests at different temperature environment. S355NL plate shall be done impacting test in longitudinal direction under -50℃ with the minimum energy 27J. When customers request done charpy_V notch test under -20℃,then the impacting energy shall be above 47J. For the transverse direction,the engery shall be above 16J under the temperature -50℃. The a242 type 1 steel bar, steel Grade S355NL making process shall according to EN10025-1.

40Cr steel belongs to alloy structural steel. a242 type 1 steel bar, 40Cr steel has good comprehensive properties, low temperature impact toughness and low notch sensitivity after quenching and tempering on the basis of high-quality carbon structural steel No. 40. 40Cr steel mechanical properties: tensile strength: ≥ 980mpa, yield strength: ≥ 785MPa, elongation after fracture: ≥ 9%, elongation after fracture: ≥ 45%, impact absorption energy: ≥ 47J. 40Cr steel chemical composition: C: 0.37-0.44, Si: 0.17-0.37, Mn: 0.50-0.80, Cr: 0.80-1.10.

The characteristic of niobium in a242 type 1 steel bar etc. steel material is to increase the recrystallization temperature of austenite, so as to achieve the purpose of refining austenite grains. In general, the amount of niobium added in steel material is less than 0.05%, and the contribution of niobium above 0.05% to strengthening and toughening will no longer be obvious.

A36 plates technical parameters, A36 ms steel sheets datasheet: A36 steel consists of carbon 0.25% max., phosphorus 0.040% max., sulphuric 0.050% max., silicon 0.40% max. and copper 0.20% max. Mechanical properties of A36 steel include yield strength 250Mpa min., tensile strength 400-500Mpa and elongation 20% min. Brinell hardness 119-162 HBW, based on the conversion from tensile strength. Modulus of elasticity (Young’s modulus): 200 GPa (29×103 ksi). Shear modulus: 79.3 GPa (11.5×103 ksi). The density of a242 type 1 steel bar, A36 plates is 7.85g/cm3.

Our company has strict quality control standards. If you want to visit our factory, you are welcome at any time! We produce a lot of steel products every month to export a242 type 1 steel bar to all over the world. Because our customers are from all countries, they will order a large number of steel products from our company every month.

The company has passed the ISO9001: 2008 quality system certification, strictly implemented the ISO9001 quality management system. Besides, we have continuously improved the after-sales service network to make every effort to provide more convenient, accurate and faster services for all customers. We will supervise the production, control the quality in the factory, Inspect the cargo before shipment, Issue the test report to sales department. From the steel prodcution to steel delivery, we always focus the whole process.