ASTM A312 TP321H Stainless Hlau Seamless Yeeb Nkab

ASTM A312 TP321H yog dab tsi?

ASTM A312 TP321H yog lub siab - carbon variant ntawm TP321, optimized rau siab -kub creep zog, siv nyob rau hauv siab - kev nyuaj siab, siab -temp piping systems (boilers, superheaters).

Qib sib npaug (Horizontal)UNS: S32109|JIS: SUS321H|GB: 07Cr18Ni11Ti|EN: X7CrNiTi18-10|PIB: 1.4541

Chemical Composition (wt%, Kab rov tav)C: 0.04-0.10|Si: ≤1.00|Mn: ≤2.00|P: ≤0.045|S: ≤0.030|Cr: 17.00-19.00 Nws Nws: 9.00-12.00|Ti: ≥5 × C|Fe: Sib npaug

Qib		C	Mn	Si	P	S	Cr	Mo	Ni	N	Lwm yam
321	min. max	- 0.08	2.00	0.75	0.045	0.030	17.0 19.0	-	9.0 12.0	0.10	Ti=5(C+N) 0.70
321H	min. max	0.04 0.10	2.00	0.75	0.045	0.030	17.0 19.0	-	9.0 12.0	-	Ti=4(C+N) 0.70

Cov khoom tseem ceeb (20 ° C, Annealed, Kab rov tav)Qhov ceev: 7.93g / cm³|Melting Point: 1400-1450 ° C|Tensile zog: ≥515N/mm²|Tawm Zog: ≥205N / mm²|Elongation: ≥40%|Hardness: ≤201HB

Cov yam ntxwv tseem ceeb

Superior siab -kub creep zog (600-870 ° C)

Cov ncej zoo heev -weld corrosion kuj

Yuav tsum tau tshaj tawm -welding annealing rau kev ua tau zoo tag nrho

Rau siab -temp, siab -stress siab piping

TP321 vs TP321H kab rov tavCov pa roj carbon: 321 (≤0.08%)|321H (0.04-0.10%)|Creep Strength: 321 (Zoo)|321H (Zoo heev)|Annealing: 321 (Yeem)|321H (Yuav tsum tau)

 

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