Stainless steel pipe with large diameter piping

Our stainless steel pipes with large diameter piping are widely used in industries such as petroleum, chemical, paper manufacturing, energy, metallurgical heat transport, marine engineering, and wastewater treatment. These pipes are designed for high-volume fluid transportation, offering excellent corrosion resistance and high strength to meet demanding operational requirements.

We provide large-diameter stainless steel pipes that comply with ASTM A312, ASTM A778, and ASTM A358 standards, with dimensions conforming to ASME B36.19M. Below is a detailed specification table for different standards.

Super-large diameter industrial piping stainless steel pipes (Application fields: petroleum, chemical, papermaking, energy, metallurgical heat transfer, Marine engineering, sewage discharge and other industries or engineering projects)
ASTM A312, ASTM A778, ASTM A358 Specification and Dimension Table of Extra-Large Diameter pipes (The specification and dimension only conform to ASME B36.19M)

Nominal diameter		Outside Diameter	Nominal Wall Thickness
			SCH 5S	SCH 10S	SCH 40S
DN	NPS	mm	mm	mm	mm
350	14″	355.6	3.96	4.78	9.53
400	16″	406.4	4.19	4.78	9.53
450	18″	457	4.19	4.78	9.53
500	20″	508	4.78	5.54	9.53
550	22″	559	4.78	5.54	–
600	24″	610	5.54	6.35	9.53
750	30″	762	6.35	7.92	–

DIMENSION TOLERANCE TABLE

Standard	Outside Diameter(mm)		Thickness(mm)	(mm) Length
ASTM   A312	≤48.26	+0.40 -0.80	+Unspecified -12.50%	Definite cut length +6.40 -0
	>48.26~114.30	+0.80 -0.80
	>114.30~219.08	+1.60 -0.80
	>219.08~457.20	+2.40 -0.80
	>457～660	+3.20/-0.80
JIS G3459	<30.00     ±0.30 ≥30.00     ±1.00%(Outer diameter reference)		<2.00      ±0.20 ≥2.00     ±10%	Definite cut Length
GB/T 12771	<13.00        ±0.20 13.00~40.00    ±0.30 ≥40.00       ±0.80%(Outer diameter reference)		≤4.00    +0.50 -0.60 >4.00     ±10%(Thickness reference)	+20.00 -0
EN 10217-7	D1±1.50%with±0.75mm(min) D2±1.00%with ±0.50mm(min) D3±0.75%with±0.30mm(min) D4±0.50%with±0.10mm(min) EN ISO 1127		T1±15.00%with±0.60mm(min) T2±12.5%with±0.40mm(min) T3±10.00%with±0.20mm(min) T4±7.50%with±0.15mm(min) T5±5.00%with ±0.10mm(min) EN ISO 1127	≤6000     +5.00 -0 6000~12000 +10.00 -0

WEIGHT CALCULATING FORMULA TABLE OF STAINLESS STEEL

Grade	p(kg/cm³)	Calculation Formula
0Cr18Ni9(06Cr19Ni10)    00Cr19Ni10(022Cr19Ni10) SUS304                  SUS304L TP304                   TP304L	7.93	W=0.02491 t(D-t)
0Cr17Ni12Mo2      00Cr17Ni14Mo2 SUS316            SUS316L TP316             TP316L	7.98	W=0.02507 t(D-t)