ASTM A234 - buAmerika standartiuchunsoxta uglerod va qotishma po'lat quvur armaturauchun mo'ljallanganoʻrta{0}} va yuqori-harorat xizmati. kabi mahsulotlarni qamrab oladitirsaklar, burmalar, tee, reduktorlar, qopqoqlar va stub uchlari.
Muhokamadagi asosiy fikrlar
Darajaning variantlari:
ASTM A234 standarti bir nechta sinflarni o'z ichiga oladi, masalanWPB, WPC, WP5, WP9, WP11, WP12, WP22 va WP91uglerod va qotishma po'lat variantlari.
ASTM A234 WPBshunchakibu darajalardan biriA234 standarti ostida.
WPB: Eng keng tarqalgan baho
WPBbueng ko'p ishlatiladigan uglerodli po'lat armatura materialiuchunoʻrta{0}} va yuqori{1}}haroratli ilovalarglobal miqyosda.
Uni manbadan olish mumkinquvurlar (masalan, ASTM A106 Gr.C)yokiplitalar (masalan, ASTM A285 Gr.C).
ASTM A234 ning kimyoviy tarkibi (%)
|
Baho |
C |
Mn |
P |
S |
Si |
Cr |
Mo |
Ni |
Cu |
V |
Nb |
|
WPB |
0.3 |
0.29-1.06 |
0.05 |
0.058 |
0,1 min |
0.4 |
0.15 |
0.4 |
0.4 |
0.08 |
0.02 |
|
WPC |
0.35 |
0.29-1.06 |
0.05 |
0.058 |
0,1 min |
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 |
- |
- |
- |
- |
ASTM A234 ning mexanik xususiyatlari
|
Kuchlanish talablari |
WPB |
WPC, WP11CL2 |
WP11CL1 |
WP11CL3 |
|
Kuchlanish kuchi, min, ksi[MPa] |
60-85 |
70-95 |
60-85 |
75-100 |
|
(0,2% ofset yoki 0,5% kengaytma-yuk ostida-) |
[415-585] |
[485-655] |
[415-585] |
[520-690] |
|
Hosildorlik kuchi, min, ksi[MPa] |
32 |
40 |
30 |
45 |
|
[240] |
[275] |
[205] |
[310] |
A234 quvur moslamasi uchun biz bilan bog'laning