China welding stainless steel boiler tube rolling piping for heat exchanger Manufacturers and Suppliers

welding stainless steel boiler tube rolling piping for heat exchanger

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Port: Shanghai port

Payment Terms: T/T,DP,LC,CASH

Brand: MZ STEEL

Price: 30 USD/KG

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Product Detail

Special Alloys/Nickel and nickel alloys Bar/pipe/pipe fitting/sheet/plate.

Product Tags

Standard:ASTM, AiSi, DIN, EN, GB, JIS Place of Origin:ShangHai, China Brand Name:MZ Steel Number:ASTM A249/269/778/789, EN 10217-7 Type:Welded, piping stainless Steel Grade:300 Series
Application:shell and tube heat exchanger  Certification:PED 2014/68/EU,AD 2000Merkblatt W0,ISO
Welding Line Type:Efw  Tolerance:±10%  Processing Service:Bending  Grade:SS304,SS304L,SS316,SS316L
Inner and outer finish:bright annealing or pickling  Thickness Tolerance:+/- 10%  Material Grade:304 304L 316 316L
Length:up to 18.3 meter.  Bright annealed: 1040℃  Welded seam treatment:inner welded seam removed
Product:welding stainless steel boiler tube rolling piping for heat exchanger  Name:boiler tube rolling
Application machine:heat exchanger, boiler, condenser,evaporator

	HG 20537.2				ASTM A249 (A1016)		GB / T 24593
Outside Diameter (mm)	Ⅰ		Ⅱ		< 25.4	± 0.10	≤ 25	± 0.10
	<25	± 0.10	>10~30	± 0.20	≥25.4~<38.1	± 0.15	>25~40	± 0.15
	≥25~38	± 0.15	>30~50	± 0.30	≥38.1~<50.8	± 0.20	>40~50	± 0.20
	>35~51	± 0.20	>50	± 0.8%	≥50.8~<63.5	± 0.25	>50~65	± 0.25
	>51~63	± 0.25			>63.5~<76.2	± 0.31	>65~75	± 0.30
	>63~76	± 0.30					>75~100	± 0.38
Thickness (mm)	± 10%S				± 10%S		± 10%S
Length (mm)	+5 -0				D<50.8	+3 -0	+5 -0
					D ≥ 50.8	+5 -0
Stainless Steel Mechanical Properties
Grade		Tensile Strength		Yide Strength		Elogation	Hardness	Soluction Annealing
		kgf/mm²(N/mm²)		kgf/mm²(N/mm²)		%	HRB(HV)	℃
ASTM	TP 304	≥53 (515)		≥21 (205)		≥35	≤90 (200)	1040℃-1150℃ Water Quenching
	TP 304L	≥50 (485)		≥17 (170)
	TP 316	≥53 (515)		≥21 (205)
	TP 316l	≥50 (485)		≥17 (170)
JIS	SUS 304	≥53 (520)		≥21 (205)				1010℃-1150℃ Water Quenching
	SUS 304L	≥49 (480)		≥18 (175)
	SUS 316	≥53 (520)		≥21 (205)
	SUS 316L	≥49 (480)		≥18 (175)
GB	06Cr19Ni10	≥53 (520)		≥21 (205)				1010℃-1150℃ Water Quenching
	022Cr19Ni10	≥49 (480)		≥18 (180)
	06Cr17Ni12Mo2	≥53 (520)		≥21 (205)
	022Cr17Ni12Mo2	≥49 (480)		≥18 (180)
EN	1.4301	(500-700)		≥20 (195)		≥40		1000℃-1100℃ Water Quenching
	1.4307	(470-670)		≥18 (180)
	1.4401	(510-710)		≥21 (205)				1020℃-1120℃ Water Quenching
	1.4404	(490-690)		≥19 (195)

A789 / A789M Permissible Variations in Dimensions
Group	Size, Outside Diameter, in. [mm]	Permissible Variations in Outside Diameter, in. [mm]	Average Wall Permissible Variations in Wall Thickness, %	Minimum Wall Permissible Variations in Wall Thickness, %		Permissible Variations in Cut Length,in. [mm]		Thin Walled Tubes
Group	Size, Outside Diameter, in. [mm]	Permissible Variations in Outside Diameter, in. [mm]	Average Wall Permissible Variations in Wall Thickness, %	Over	Under	Over	Under	Thin Walled Tubes
1	up to 1/2 [12.7], excl	± 0.005 [0.13]	± 15	30	0	1/8 [3]	0	…
2	1/2 to 1 1/2 [12.7 to 38.1], excl	± 0.005 [0.13]	± 10	20	0	1/8 [3]	0	less than 0.065 in. [1.6 mm] specified
3	1 1/2 to 3 1/2 [38.1 to 88.9], excl	± 0.010 [0.25]	± 10	20	0	3/16 [5]	0	less than 0.095 in. [2.4 mm] specified
4	3 1/2 to 5 1/2 [88.9 to 139.7], excl	± 0.015 [0.38]	± 10	20	0	3/16 [5]	0	less than 0.150 in. [3.8 mm] specified
5	5 1/2 to 8 [139.7 to 203.2], incl	± 0.030 [0.76]	± 10	20	0	3/16 [5]	0	less than 0.150 in. [3.8 mm] specified

welding stainless steel boiler tube rolling piping for heat exchanger Foshan

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We pay attention to every step of manufacturing, and carefully control every details from process, design, manufacture and test , in order to guarantee superexcellent product.
Raw material inspection:	Dimension and tolerance check, appearance quality check ,mechanical properties testing, weight check and raw material’s quality assurance certificate check.
Semi-finished goods inspection:	Dimension and tolerance check ,physical and chemical Inspection ,leakage magnetism and ultrasonic inspection
Finished goods inspection:	Dimension and tolerance, appperance quality check and mechanical properties testing.
Inspection beforeex-factory:	We arrange our QC staff to manufacture’s plant for final quality and packing inspection each time before we deliver goods to port for shipping, and the connected sales staff will be with QC staff to make sure we did everything fully and strictly meet our customers’ requirements.