Sheet, strip 20X13 - 1.4021 - aisi 420
Composition and Properties
Sheet, ribbon foil and heat-resistant stainless 20X13 marks have a high strength resistance to corrosion and flexibility. They are produced in accordance with GOST 5632 — — — — 72. As part of the 12−14% chromium, 0.6% manganese, nickel, silicon, 0.16 — 0.25% carbon, thousandths of a percent of phosphorus and sulfur. Balance is iron. This martensitic steel grade, t ° melting its 1320−1350 ° C. Plasticity of heat resistance and allow the use of flat products at t ° to 550 ° C for parts subject to vibration and shock. Sheet, strip, foil and kept short-term heating to 700 ° C. resistant to atmospheric and soil moisture, organic acids, weak nitric acid.
The percentage of the brand 20X13 (GOST 5632−72)
Mechanical properties of rolled products t o 20 o C.
|assortment||GOST||σ B||σ T||5 d||KCU||curing|
|Page 1 — 4 mm||5582−75||490||20||Holidays 740 — 800 o C,|
|Forgings ≤600 mm||, 25, 054−81||47||441||14−16||40−50||390−640|
The σ — limit of short-term strength;
σ T — yield limit for residual deformation.d 5 — elongation at break.
Hot working temperature range from 1100 to 900 ° C with air cooling. At 750 — 800 ° C softening annealing is performed with an exposure in an oven at 500 ° C. Is required for hardening heating to 950 — 1000 ° C with cooling in oil. Welding is performed electric and manual or automatic TIG welding. If the sheet thickness of more than 10 mm, pre-heating is desirable to 250−400 ° C and a final heat treatment for stress relief.
Sheets, strips and foils of steel 20X13 used in power engineering for crackers parts, steam generators and pumps. They are widely used in chemical, petroleum industry, in shipbuilding, in the food and medical industries, as well as more recently — in construction to create decorative architectural elements.
We deliver certified 20X13 rental brands. The technical documentation includes data on the chemical composition, limiting the percentage of impurities; mechanical properties of products. We can buy in bulk, any semi-finished products for large-scale productions. We also offer optimal conditions for retail customers. High level of service and efficiency of service are the face of our company.
Buy at the best price
The company «Electrovek-steel» offers its customers an unlimited choice of stainless steel of the highest quality at a competitive price. If you are not sure, offers experienced managers who are always connected and ready to provide advice. Having made an order with us, you will receive certified products that comply with Russian and international standards of quality in the shortest possible time. If you value your time, contact today with our nearest office in Russia or in Ukraine, or make a reservation on the Internet.