Taw qhia rau ASTM A519 & Cov Lus Qhia Xaiv
Cov ntsiab lus tseem ceeb ntawm ASTM A519 Txuj
ASTM A519 (Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing) yog "tus qauv kub" rau seamless mechanical tubing. Tsis zoo li cov kav dej tsim los rau kev thauj cov kua dej (xws li ASTM A106), ASTM A519 yog tsim los raukev siv cov qauvthiabprecision machining, hais txog qhov tseeb qhov tseeb, nto tiav, thiab machinability.
Cov ntsiab lus tseem ceeb ntawm tus qauv muaj xws li:
Cov txheej txheem tsim khoom: Npog ob qhov Kub-Tiav thiab Txias-Cov txheej txheem kos. Kub- cov raj ua tiav feem ntau yog siv rau cov ntawv thov uas muaj qhov yuav tsum tau ua kom nruj me ntsis, thaum Txias- Cov raj kos yog qhov zoo tagnrho rau cov khoom siv precision uas yuav tsum tau ua kom nruj nruj thiab du nto.
Dimensions thiab Tolerances: nruj me ntsis tswj sab nraud txoj kab uas hla (OD), phab ntsa thickness, thiab ntev tolerances. Txias-cov raj kos, tshwj xeeb tshaj yog, muaj qhov nruj heev OD kam rau ua (piv txwv li, ± 0.003 ntiv tes), ua rau lawv zoo meej rau qhov tseeb haum zoo li hydraulic thooj voos kheej kheej thiab cov kabmob.
Khoom Scope: Encompasses Carbon Steels (piv txwv li, 1010-1045) thiab Alloy Steels (piv txwv li, 4130, 4140), nrog rau qhov ntau thiab tsawg ntawm 1/4 nti mus rau 12.75 nti hauv OD.
Kev kho cua sov: Muaj nyob rau hauv ntau yam kev mob xws li Annealed (A), Normalized (N), thiab Quenched & Tempered (QT) kom tau raws li qhov tshwj xeeb hardness thiab lub zog xav tau.
Lub Rooj Xaiv Qib Siab (los ntawm Daim Ntawv Thov)
Txhawm rau pab cov neeg ua haujlwm muag khoom sib xws rau cov neeg siv khoom xav tau, cov qib ASTM A519 feem ntau raug cais los ntawm daim ntawv thov scenario hauv qab no:
表格
| Kev thov ib puag ncig | Pom zoo Qib | Kev siv yam | Ntsiab Qhov Zoo & Cov yam ntxwv |
|---|---|---|---|
| General Machining | 1018 / 1020 / 1026 | Bushings, washers, pins, general yam ntxwv yam | Tsawg carbon steel, weldability zoo heev, yooj yim rau txias daim ntawv, nqi -zoo. |
| Siab -Strungth Structural | 1045 | Gears, shafts, txuas rods, fasteners | Nruab nrab carbon steel; kev kho cua sov yields siab zog thiab hardness; zoo hnav tsis kam. |
| Siab Siab / Kub | 4130 / 4140 | Hydraulic thooj voos kheej kheej, roj drilling khoom, aircraft qhov chaw | Chrome-Moly alloy; zoo heev hardenability, siab zog - mus rau - toughness piv, superior qaug zog kuj. |
| High Wear/Havy Duty | 4145 / 4150 | Heavy-cov haujlwm ua haujlwm, cov kabmob sib tw, cov cuab yeej txiav | Siab-carbon Chrome-Moly; tsis tshua muaj siab deg hardness thiab lub zog tseem ceeb rau huab hwm coj ib puag ncig. |
| Automotive / Precision | 1518 / 1526 | Tsis siv neeg ntsia hlau tshuab qhov chaw, screws, bolts | Dawb-machining steel (ntau dua sulfur); tsis tshua muaj siab machining efficiency thiab nto tiav. |
| Springs/Elastic Elements | 9255 / 9260 | Nplooj springs, coil springs, clutch discs | Siab -Silicon Manganese; tsis tshua muaj siab elastic txwv thiab qaug zog lub zog. |
