Astm A234 Cov khoom siv

ASTM A234 npog 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. ASTM A234 Fittings ntawm seamless thiab welded tsim yog siv rau hauv siab piping thiab nyob rau hauv siab nkoj fabrication rau kev pab nyob rau hauv nruab nrab thiab siab kub.

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Hauj lwm lawm

Kev tsis

ASTM A234 Fittings ntawm seamless thiab welded tsim

Scope

Qib

WPB & WPC Carbon Steel

WP5, WP9, WP11, WP22, WP91 Chrome Moly Steel

Txheej txheem

Tua steel, nrog forgings, tuav, daim hlau, ntawv, thiab seamless los yog fusion-welded tubular khoom nrog muab tub lim ntxiv. Forging los yog shaping kev khiav hauj lwm ua los ntawm hammering, nias, tho, extruding, chim siab, dov, dabtsi yog khoov, fusion vuam, machining, los yog ua ke ntawm ob los yog ntau tshaj ntawm cov kev khiav hauj lwm.

Chemical Requirements (%)

	WPB B, C, D, E	WP11 CL1	WP11 CL2	WP22 CL1	WP22 CL3	WP5 CL1
Cov pa roj carbon	0.3	0.05–0.15	0.05–0.20	0.05–0.15	0.05–0.15	0.15
Manganese	0.29–1.06	0.30–0.60	0.30–0.80	0.30–0.60	0.30–0.60	0.30–0.60
Phosphorus	0.05	0.03	0.04	0.04	0.04	0.04
Sulfur	0.058	0.03	0.04	0.04	0.04	0.03
Silicon	0.10 min	0.50–1.00	0.50–1.00	0.5	0.5	0.5
Chromium	0.4	1.00–1.50	1.00–1.50	1.90–2.60	1.90–2.60	4.0–6.0
Molybdenum	0.15 max	0.44–0.65	0.44–0.65	0.87–1.13	0.87–1.13	0.44–0.65
Nickel	0.4	…	…	…	…	…
Tooj	0.4	…	…	…	…	…
Lwm tus	Vanadium 0.08	…	…	…	…	…

Cov ntaub ntawv siv

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ASTM A217 / A217M Specification rau Hlau Castings, Martensitic Stainless thiab Alloy, rau cov khoom siv siab, tsim nyog rau Kev Pabcuam Kub Kub
ASTM A960 / A960M Cov Lus Qhia Tshwj Xeeb rau Kev Xav Tau rau Wrought Steel Piping Fittings
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