420 stainless steel Needle
420 stainless steel is widely used in surgery over hundreds years. AKA “AS” needle named by Wegosutures for these sutures needle made by 420 steel. The performance is good enough base on precision manufacturing process and quality control. AS needle is the most easier on manufacturing compare with the order steel, it brings the cost-effect or economic to the sutures.
Composition on ingredients
| Element Material | C | Si | Mn | P | S | Ni | Cr | N | Cu | Mo | Fe | Al | B | Ti | Cb |
| 420J2 | 0.28 | 0.366 | 0.440 | 0.0269 | 0.0022 | 0.363 | 13.347 | / | / | / | Balance | / | / | / | / |
Physical and chemical properties
Appearance: Solid
Odour: odourless
Melting point melting rage：1300-1500℃
Flash point: Not applicable
Flammability: The substance is not flammable
Auto flammability: The substance is not auto flammable
Explosive properties: The substance is not explosive
Oxidising properties : Not applicable
Vapour pressure: Not applicable
Density at 20℃: 7.9-8.0 g/cm3
Solubility: Not soluble in water or oil
Hazard identification
There are normally no hazards to man or the environment from the 420J2 stainless steel wire in the forms supplied. Dust and fume may be generated during fabrication, that is , during welding, cutting and grinding. Dust from dry grinding or machining will have the same composition as the product. Flame cutting or welding fumes will contain also oxides of iron and other constituent metals.
If airborne concentrations of dust and fume are excessed, inhalation over long periods may affect worker’s health.
The 420J2 stainless steel wire does not normally cause any allergic reaction by skin contact.
