20X13 - 1.4021 - aisi 420 pipe
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 20Х13 | EJ2 | 1.4021 | 420 | X20Cr13 | Delivery from the stock, in stock |
Composition and properties
The composition of heat-resistant stainless steel grade 20X13 according to GOST 5632 — - — - 72 includes 12−14% chromium, 0.6% Nickel, manganese and silicon 0,16 — 0,25% of carbon, thousandths of a percent of phosphorus and sulfur. The balance is iron. Pipes of a steel of martensitic class have high corrosion resistance, heat resistant, durable, plastic. Refractoriness and plasticity allow the use these tubes in installations subject to vibration and shock loads at a temperature of about 550 °C, they can also withstand brief heating to 700 °C. Such pipe resist the action of atmospheric and soil moisture, resistant in solutions of organic acids, weak nitric acid solutions.
Percentage composition of the brand 20X13 (GOST 5632−72)
| Alloy | C | Si | Mn | Ni | Cr | P | S | Ti | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 20X13 | 0,16−0,25 | ≤0,6 | ≤0,6 | ≤6 | 12−14 | ≤0,03 | ≤0,025 | --- | basis |
Mechanical properties of semi-finished products in to 20o With
| Assortment | GOST | σIn | σT | d5 | KCU | Heat treatment |
|---|---|---|---|---|---|---|
| Rod | 5949−75 | 510 | 375 | 20 | Normalization | |
| Rod | 18 968−73 | 670 | 490−655 | 18 | 50 | 690 |
| The rod specified strength | 18 907−73 | 510−780 | 14 | |||
| Forgings ≤600 mm | , 25 054−81 | 47 | 441 | 14−16 | 40−50 | 390−640 |
| Sheet 1 — 4 mm | 5582−75 | 490 | 20 | Leave 740 — 800o C, | ||
| The plates | 7350−77 | 510 | 375 | 20 | Normalization |
σIn the limit of short-term strength;
σT is the yield stress for permanent deformation.
d5 — elongation at break.Treatment
Hot deformation is carried out at a temperature from 1100 to 900 °C with air cooling. Rolling and forging at a temperature of 780 °C. At 750 — 800 °C annealing softening conduct with aging in a furnace at 500 °C. For hardening is required heat to 950 — 1000 °C with cooling in oil. Pipe welding is an electric arc, argon arc manual or automatic welding. If the wall thickness of the tube more than 10 mm is desirable preheating to 250−400°C and a final heat treatment to relieve residual stresses.
Application
These pipes are used in power engineering, in cracking installations for the discharge of hot gases, in the construction of steam generators, pumps. They are widely used in chemical, oil industry, shipbuilding, food processing, medical industry. Recently construction to create decorative architectural elements.
Supply
Supply certified products brand 20X13. In the technical documentation included data on chemical composition, limiting the percentage of impurities; mechanical qualities of the products. We can buy any wholesale products for large-scale production. We also offer optimal conditions for retail customers. A high level of service and speed of service are the face of our company.
Buy at best price
All stainless steel alloys implemented by the company «Electrocentury-steel» meet state quality standards. Supply metal standard and custom sizes in the shortest possible time from warehouses located on the territory of Russia and Ukraine. High quality, affordable prices and a wide range of products define the face of our company. Becoming our regular customer, You will be able to rely on the system of discount discount. Cooperation with us will help You to implement any engineering plans. Waiting for Your orders on the website evek.org.
