20KH17N2 - 1.4057 - aisi 431 steel, round, wire
Corrosion resistant steel ordinary 20KH17N2 (article 20KH17N2) martensitic class used in the manufacture of highly loaded parts operating impact and abrasion such as high strength steel in a slightly aggressive media. 20KH17N2 steel has a high hardness (HRC>45).
| Thermochemical treatment of metals heat | B04 | According to STP 26.260.484−2004 |
|---|---|---|
| Forging. Pressure treatment of metals. | B03 | According to GOST 25054−81 |
| Shaped bars | В32 | 14−11−245−88 according to TU, GOST 5949−75 |
| Blanks. Of the workpiece. Slabs. | В31 | According to GOST 3−1686−90 |
| Classification, Nomenclature, standards standards. | B30 | According to GOST 5632−72 |
Chemical characteristics 20KH17N2 steel according to GOST 5632−72.
| S | Cr | S | Ni | Mn | Si | C |
|---|---|---|---|---|---|---|
| up to 0.025 | 16 — 18 | up to 0.025 | 1.5 — 2.5 | to 0.8 | to 0.8 | 0.17 — 0.25 |
Mechanical characteristics 20KH17N2 at 20 °C.
| Products | kJ / m2 | % | % | - | mm | MPa | MPa | - |
|---|---|---|---|---|---|---|---|---|
| - | KCU | y | d5 | Eg. | Size | sT | blower SB | Heat treatment |
| Forgings GOST 25054−81 | 490−590 | 30−40 | 12−15 | Prod. | up to 600 | 666 | 813 | Vacation and hardening |
Mechanical characteristics:
| — viscosity impact, [kJ / m2] | KCU |
|---|---|
| — narrowing of the relative in [ % ] | y |
| — Brinell hardness [MPa] | HB |
| — residual deformation for the yield strength (or limit of proportionality), in [MPa] | sT |
| — short-term strength limit, [MPa] | blower SB |
| — elongation at break relative in [ % ] | d5 |
Forgings. Hardness 20KH17N2, GOST 25054−81 is HB 10 -1 = 248 — 293МПа.
Rod. Hardness after annealing 20KH17N2 according to GOST 5949−75 is HB 10 -1 = 285МПа
Foreign analogues.
| - | JIS | BS | AFNOR | WNr, DIN | EN | SS | UNE | UNI | GB |
|---|---|---|---|---|---|---|---|---|---|
| USA | Japan | England | France | Germany | The European Union | Sweden | Spain | Italy | China |
| 431 | SUS431 | En57 431S29 |
Z15CN16−02 | 1.4057 X17CrNi16−2 X22CrNi17 X20CrNi172 |
X17CrNi16−2 1.4057 |
2321 | X19CrNi17−2 F. 3427 |
X16CrNi16 | ML1Cr17Ni2 1Cr17Ni2 |
Those. CONV., Standard alloy.
«The technical conditions. With special. finish is round, the surface quality of steel.» According to GOST 14955−77
«Assortment. Rolled steel round bars hot rolled.» According to GOST 2590−2006
«Assortment. Rolled steel square bars hot rolled.» According to GOST 2591−2006
«The technical conditions. High precision shaped steel profiles.» 14−11−245−88
«The grade. Round, square steel forged «. According to GOST 1133−71
«Assortment. Forged, hot-rolled strips of tool steel.» According to GOST 4405−75
«Assortment. Calibrated round steel.» According to GOST 7417−75
«Assortment. Calibrated square steel.» According to GOST 8559−75
«Assortment. Steel mill products hot-rolled strip.». According to GOST 103−2006
«Tekhnich. conditions. Grooved, steel bars, corrosion resistant, heat resistant, heat resistant. «According to GOST 5949−75
» Assortment. Hexagonal bars are grooved.» According to GOST 8560−78
«Forged steel square and round.» According to GOST 1133−71
«Brand. Heat-resistant, heat-resistant steel, corrosion-resistant, high-alloy». According to GOST 5632−72
«Assortment. Hot rolled bars, steel hex. «According to GOST 2879−2006
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The company «AVEK global», producing a large range of steel products 20KH17N2 ready to satisfy the most sophisticated demands of consumers. The widespread use of products that are made from this alloy due to the high quality, huge variety and affordable cost. Absolute control of all stages of the technological process allows the company «AVEK global» to produce high quality metal products. The introduction of modern technologies enables us a base range, which are always in stock at the warehouses of the company, accept orders for manufacturing of products customized non-standard settings.