1. Los ntawm Khoom:
Carbon hlau: ASTM / ASME A234 WPB, WPC
Alloy: ASTM / ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP911, 15Mo3 15CrMoV, 35CrMoV
Stainless hlau: ASTM / ASME A403 WP 304-304L-304H-304LN-304N
ASTM / ASME A403 WP 316-316L-316H-316LN-316N-316Ti
ASTM / ASME A403 WP 321-321H ASTM / ASME A403 WP 347-347H
Cov Hlau Kub Kub: ASTM / ASME A402 WPL3-WPL 6
High Performance Steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70 Cast steel, alloy steel, stainless hlau, tooj liab, aluminium alloy, yas, argon-bonded asphalt, PVC, PPR, RFPP (reinforced polypropylene), thiab lwm yam.
2. Muab faib los ntawm kev tsim khoom: thawb- tsim, nias, forged, cam khwb cia, thiab lwm yam.
3. Muab faib los ntawm kev tsim qauv: lub teb chaws tus qauv, cov qauv hluav taws xob, cov qauv dej hiav txwv, cov qauv tshuaj, cov qauv dej, tus qauv Asmeskas, tus qauv German, tus qauv Japanese, tus qauv Lavxias, thiab lwm yam.
4. Muab faib los ntawm nws lub vojvoog ntawm curvature: lub luj tshib ntev thiab lub luj tshib luv luv. Lub luj tshib ntev muaj ib lub vojvoog ntawm curvature sib npaug li 1.5 npaug ntawm txoj kab uas hla ntawm cov yeeb nkab, piv txwv li, R=1.5D; lub luj tshib luv luv muaj ib lub vojvoog ntawm curvature sib npaug rau sab nraud ntawm cov yeeb nkab, piv txwv li, R=1.0D. (D yog lub luj tshib txoj kab uas hla, R yog lub vojvoog ntawm curvature).
5. Yog tias muab cais los ntawm kev ntsuas siab, muaj kwv yees li kaum xya hom, uas yog tib yam li Asmeskas cov qauv yeeb nkab: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS; Sch80, Sch100, Sch120, Sch140, Sch160, XXS; ntawm cov STD thiab XS feem ntau siv.
