E like me nā mea kūpono e pili ana i nā mea kūʻai aku iā Yolden
Astm A420ʻO ka kiko'ī maʻamau no ka piʻiʻana o ka piko o ka carbon a me nā kila eleele i hoʻohanaʻia no nā lawelawe haʻahaʻa haʻahaʻa. ʻO WPP6 ka mea nui i hoʻohanaʻia ma lalo o A420.
ʻO nā flangs, nā mea kūpono, nā valives a me nā'āpana'ē aʻe i kauohaʻia e like me ka mea kūʻai aku e like me MSS, Asme a me API a me API a me API a me API.
Еts hopena hoʻi iā elbow⇐he mau mea nui i nā'ōnaehana pickline pickline a hoʻohanaʻia e hoʻololi i nā kuhikuhi wai. ʻO ia i nāʻano likeʻole e like me kēlā me kēia kino e loaʻa ai ke kino cheelless cheellest, carbon cheel cheeld cheelbow, a me ka kila kila calal E like me kēlā me kēia wai wai he 45 a me 90 mau hola elbow a me 180 kekona; E like me ka lōʻihi o ka lima a me ka radius i loaʻa i ka radius st radius st radius E like me keʻano o nāʻano pili i nāʻano he cold i ka elbow elbow, stecket elbow a me nā kila kila kila a me ke kila kila.
Ua hoʻolālāʻia kahi pākuhi pick well i kahi kūpono ma luna o kona hopena.
Chemposition compositition (%) o Astm A234
| Kumu | C | Mn | P | S | Si | Cr | Mo | Ke nike | Cu | V | Nb |
| Wpb | 0.3 | 0.29-1.06 | 0.05 | 0.058 | 0.1min | 0.4 | 0.15 | 0.4 | 0.4 | 0.08 | 0.02 |
| Wpc | 0.35 | 0.29-1.06 | 0.05 | 0.058 | 0.1min | 0.4 | 0.15 | 0.4 | 0.4 | 0.08 | 0.02 |
| Wp11 cl1 | 0.05-0.15 | 0.30-0.60 | 0.03 | 0.03 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 | – | – | – | – |
| Wp11 cl2 \ / 3 | 0.05-0.20 | 0.30-0.80 | 0.04 | 0.04 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 | – | – | – | – |