H13 1.2344 SKD61 mmanya dị larịị

H13 Tool Steel is a versatile chromium-molybdenum hot work steel that is widely used in hot work and cold work tooling applications. The hot hardness (hot strength) of H13 resists thermal fatigue cracking which occurs as a result of cyclic heating and cooling cycles in hot work tooling applications. Because of its excellent combination of high toughness and resistance to thermal fatigue cracking (also known as heat checking) H13 is used for more hot work tooling applications than any other tool steel.

Because of its high toughness and very good stability in heat treatment, H13 is also used in a variety of cold work tooling applications. In these applications, H13 provides better hardenability (through hardening in large section thicknesses) and better wear resistance than common alloy steels such as 4140.

Also available as Electro-Slag-Remelted (ESR) and Vacuum-Arc-Remelted (VAR) products as well. The remelting processes provide improved chemical homogeneity, refinement of carbide size, and the associated improvements in mechanical properties and fatigue properties.

ngwa:Ihe ntinye, cores, na oghere maka nkedo anwụ anwụ na-anwụ, anwụ nkedo ogbugba, anwụ anwụ na-ekpo ọkụ, extrusion anwụ, na oghere rọba na ihe ndị na-achọ ike siri ike na ezigbo mma.

Mejupụtara

NWAANYI AGBARA

Njupụta: 0.280 lb/in3 (7750 n'arọ/m3)

· Nnukwu ike ndọda: 7.75

· Machinability: 65-70% nke a 1% carbon ígwè

Ntuziaka ọgwụgwọ okpomọkụ

NA-AKWỤKWỌ

Na-ekpo ọkụ: Iji wedata mgbagha na ngwaọrụ dị mgbagwoju anya jiri preheat okpukpu abụọ. Kpoo ọkụ na ọnụego agaghị agafe 400ºF kwa elekere (222°C kwa elekere) ruo 1150-1250°F (621-677°C), haha ​​nhata, wee bulie ya na 1500-1600°F (816-871°C) na hazie. Maka ngwaọrụ nkịtị, jiri naanị oke okpomọkụ nke abụọ dị ka otu ọgwụgwọ ikpo ọkụ.

Austenitizing (High Heat): Heat rapidly from the preheat. Furnace or Salt: 1800-1890°F (982-1032°C) For maximum toughness, use 1800°F (982°C) For maximum hardness and resistance to thermal fatigue cracking and wear use 1890 (1032°C). Soak at temperature for 30 to 90 minutes.

Na-emenyụ: Ikuku, gas na-akpa ike, ma ọ bụ mmanụ ọkụ. Ọkpụrụkpụ nke ngalaba ruo na gụnyere inch 5 (127 mm) ga-esikarị ike kpamkpam mgbe ikuku dị jụụ site na ọgwụgwọ na-enyere aka. Akụkụ karịrị inch 5 (127 mm) n'ogo ga-achọ ka ọ dị ngwa ngwa site na iji ikuku mmanye, gas na-arụ ọrụ, ma ọ bụ nkwụsị mmanụ na-akwụsị iji nweta ike siri ike, ike na iguzogide ike ọgwụgwụ ọkụ.

Maka mmenyụ ikuku nke nrụgide, a na-achọ opekempe nkwụsị nke ihe dị ka 50°F kwa nkeji (28°C kwa nkeji) ruo n'okpuru 1000°F (538°C) iji nweta ihe kacha mma na nchara.

Maka mmanụ, menyụọ ruo oji, ihe dị ka 900°F (482°C), wee dị jụụ n'ikuku ruo 150-125°F (66-51°C).

Na-ewe iwe: Iwe ozugbo emenyụchara. Ụdị okpomọkụ a na-ahụkarị bụ 1000-1150°F (538-621°C). Jide na okpomọkụ dị ọkụ maka 1 hour kwa inch (25.4mm) nke ọkpụrụkpụ, mana maka awa 2 opekempe, wee mee ka ikuku dị jụụ ruo okpomọkụ. Achọrọ iwe ọkụ ugboro abụọ. Iji mee ka ike sie ike na ịrụ ọrụ ngwá ọrụ, a na-ejikarị iwe nke atọ eme ihe dị ka ihe mgbakasị ahụ mgbe emechara machining, egweri, na ọrụ EDM na ngwá ọrụ ahụ.

NA-ANEALING

A ga-emerịrị mgbakasị ahụ mgbe arụchara ọrụ ọkụ na tupu ịmaliteghachi ike.

Kpoo ọkụ na ọnụego agaghị agafe 400°F kwa elekere (222°C kwa elekere) ruo 1575-1625°F (857-885°C), ma jide na okpomọkụ maka 1 hour kwa inch nke oke ọkpụrụkpụ; 2 awa kacha nta. Mgbe ahụ, jiri nwayọọ nwayọọ mee ka ọkụ ahụ dị jụụ na ọnụego agaghị agafe 50ºF kwa elekere (28°C kwa elekere) ruo 1000°F (538°C). Gaa n'ihu na-ajụkwa oyi ruo n'ọnọdụ okpomọkụ n'ime ọkụ ma ọ bụ n'ikuku. Isi ike ga-esi na ya pụta kwesịrị ịbụ kacha nke 235 HBS.