Stainless Steel Pipe

Corrosion-resistant seamless & welded tube, austenitic to super duplex grades

For applications requiring corrosion and heat resistance — chemical processing, marine and offshore, food & pharmaceutical, and heat-exchanger service — Petrosteel supplies seamless and welded stainless steel tube and pipe (OD φ6–φ830 mm, WT 0.5–45 mm) to ASTM/ASME, EN, DIN, JIS, GOST and GB standards, spanning grades from standard austenitic (304/316) through titanium-stabilized types to duplex and super duplex.

Seamless Tube & Pipe — Size Range

Product	Size Range
Stainless steel seamless tube & pipe	OD: φ6–φ830 mm / WT: 0.5–45 mm
U-Tube	OD: φ12–φ38 mm / WT: 0.5–4 mm

Welded Tube & Pipe — Size Range

Product Form	Size Range
Small-size pipe (continuous lines)	OD: 10–273 mm / WT: 0.5–10 mm
Large-size pipe (bending lines)	OD: 219–2500 mm / WT: 1.5–50 mm
U-Tubes	OD: 16–38 mm / WT: 0.5–2 mm

Steel Types

Steel Types	Typical Steel Codes (AISI)
Austenitic	TP304, TP304L, TP304H, TP316, TP316H, TP316Ti, TP316L, TP321, TP321H, TP347H, TP347HFG, 904L, TP310H, TP310S, TP317, TP317L, TP316LMo≥2.5, etc.
Duplex / Super duplex	S31803, S32205, S31500, S32750

Production Standards

Standard Type	Standard
EN	EN10216-5; EN10216-2
DIN	DIN 17456; DIN 17458
ASTM / ASME	ASTM A312, A213, A269, A511, A789, A790, B163, B423, B407, B668 / ASME SA213, SA312, SA789, SA790, SB163, SB423, SB407, SB668
JIS	JIS G3459; G3463
GOST	GOST 9941; GOST 5632
GB	GB/T14975; GB/T14976; GB13296; GB5310; GB9948