ASME SA213 S30432 (Super 304H) Seamless Steel Tubes

Common specifications:38mm*6mm, 45mm*6.7mm, 45mm*9.2mm

Length: 6M or specified length as required

Product Introduction

SA213 S30432 (Super 304H) Steel
SA213 S30432 (super 304H) steel is a new type of 18-8 austenitic stainless steel, which is mainly used to manufacture superheater and reheater of ultra supercritical boiler with metal wall temperature not exceeding 700 ℃.

SA213 S30432 (super 304H) steel reduces Mn content on the basis of TP304H, adds 3% Cu, 0.45% Nb and a certain amount of N, which makes the steel produce dispersion precipitation phase and copper rich strengthening phase in service, and copper rich phase together with NBC (n), nbcrn and M23C6 produces excellent precipitation strengthening effect, which greatly improves the allowable stress under service temperature. The allowable stress at 600-650 ℃ is 30% higher than that of TP347H steel. Compared with tp347hfg steel, the steam oxidation resistance of this steel is better than that of tp321h steel. It has been listed in ASME code 2328-1, ASTM A213 and GB 5310-2008 standards, and its grades are S30432 and 10cr18ni9nbcu3bn respectively

ASME SA213 S30432 (Super 304H) Seamless Steel Tubes Quick Details
Manufacture:Seamless process
Common specifications:38mm*6mm, 45mm*6.7mm, 45mm*9.2mm,
Length: 6M or specified length as required.
Ends: Plain End, Beveled End, Treaded

Additional Info
Port of Shipment: Tianjin, China
Payment Terms:T / T, LC
Delivery: 7-15 days after payment
Surface: Tubes will be varnished (Outside only) to prevent rust.
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Bundles (hexagonal),Wooden Boxes,Crates (steel/wooden) or as required

Technical data

Chemical composition (%) of SA213 S30432 (Super 304H)

Grade	C	Mn	P	S	Si	Cr
SA213 S30432 (Super 304H)	0.07-0.13	≤1.00	≤0.040	≤0.010	≤0.30	17.0-19.0
	Ni	N	Nb	Al	B	Cu
	7.5-10.5	0.05-0.12	0.30-0.60	0.003-0.030	0.001-0.010	2.50-3.50

Mechanical property of SA213 S30432 (Super 304H)

Grade	Tensile strength（Mpa）	Yield strength（Mpa）	Elongation（%）	Hardness
SA213 S30432 (Super 304H)	≥590	≥235	≥35	≤95HRB

Heat treatment and grain size requirements of SA213 S30432 (Super 304H)

Grade	Type of heat treatment	Austenite / solution treatment temperature, ℃	Cooling medium	ASTM grain size class number
SA213 S30432 (Super 304H)	Solution treatment	≥1100	Water cooling or rapid cooling	---