ASTM A234 Standard Specification rau Piping Fittings ntawm Wrought Carbon Steel thiab Alloy Steel rau Nruab Nrab thiab Kub Kub
Qhov kev qhia tshwj xeeb no suav nrog wrought carbon steel thiab alloy steel fittings ntawm seamless thiab welded kev tsim kho los ntawm kev kho tshiab ntawm ASME B16.9, B16.11, MSS-SP-79, MSS-SP-83, MSS- SP-95, thiab MSS-SP-97. Cov fittings no yog siv rau hauv cov kav dej siab thiab hauv kev tsim cov hlab ntsha siab rau kev pabcuam ntawm qhov nruab nrab thiab siab kub. Fittings txawv ntawm cov qauv ASME thiab MSS yuav tsum tau muab tso rau hauv raws li Kev Xav Tau Ntxiv S58 ntawm Specification A960/A960M.
Specifications ntawm ASTM A234 WP 9 180 degree SR Rov Khoov
Txuj: ASTM A234 / ASME SA234
Qib: WP9
Hom: 180 degree SR Rov Qab Khoov
Sab nraud txoj kab uas hla: 6 in. NPS
Phab ntsa Thickness: SCH STD
Chemical Composition (%) ntawm ASTM A234 WP9
| Qib | C, max | Mn | P, max | S, max | Si, max | Cr | Mo |
| WP9 Chav Kawm 1, Chav Kawm 3 | 0.15 | 0.30-0.60 | 0.030 | 0.030 | 1.00 | 8.00-10.00 | 0.90-1.10 |
Mechanical Properties ntawm ASTM A234 WP9
| Yam khoom | Tensile zog, ksi [MPa] | Yield zog, ksi [MPa], min |
| WP9 Chav Kawm 1 | 60-85 [415-585] | 30 [205] |
| WP9 Chav Kawm 3 | 75-100 [520-690] | 45 [310] |
Kev xav tau elongation ntawm ASTM A234 WP9
| Elongation: | WP9 Chav Kawm 1, Chav Kawm 3 | |
| Ntev | Hloov | |
| Standard round specimen, los yog me me proportional specimen, min feem pua ntawm 4 D | 22 | 14 |
| Rectangular specimen rau phab ntsa thickness 5⁄16 nyob rau hauv. [7.94 mm] thiab tshaj, thiab rau tag nrho cov me me tau kuaj nyob rau hauv tag nrho seem; min feem pua hauv 2 nti [50 mm] | 30 | 20 A |
| Rectangular specimen for wall thickness tsawg dua 5⁄16 in. [7.94 mm]; min feem pua ntawm 2 in. [50 mm] (1⁄2-in. [12.7-mm] wide specimen) | B | B |
Lub Fittings tsim los ntawm cov phaj yuav tsum muaj qhov tsawg kawg nkaus elongation ntawm 17 feem pua.
B Rau txhua 1⁄32 nyob rau hauv. [0.79 mm] txo cov phab ntsa thickness hauv qab 5⁄16 in. [7.94 mm], txiav tawm ntawm 1.5 feem pua rau longitudinal thiab 1.0 feem pua rau transverse los ntawm qhov tseem ceeb qhia saum toj no yog tso cai. Cov lus hauv qab no muab qhov tsawg kawg nkaus tus nqi rau ntau yam phab ntsa thicknesses.