Welded Stainless Steel Tube For Corrosion Resisting Service

Product Description

TORICH ASTM A268 Welded Stainless Steel Tube For General Corrosion Resisting Service

Standard	ASTM A268
Matrial	TP405, TP410, TP430, TP446-1, TP446-2, 26-3-3
Size	OD: 4-230mm WT: 1-30mm Length: According to Customer's Requirement
Applications	For general corrosion-resisting and high-temperature service.
Manufacture	Tubes are made by the welded process with no filler metal added.
Surface Condition	The finished tubes are free of scale., slight amount of oxidation is not considered as scale
Test and Inspection	Tension Test, Flaring Test, Flange Test, Reverse Test, Hardness Test, Hydrostatic or Nondestructive Electric Test
Heat treatment	As a final treatment, tubes shall be reheated to a temperature of 1200℉(650℃) or higher and cooled (as appropriate for the grade) to meet the requirements of this specification. The martensitic grade UNS S41500 shall be reheated to a temperature of 950℉ (510℃) or higher and cooled as appropriate to meet the requirements of this specification.

 

Chemical Requirements

Grade	UNS	C	Mn	P	S	Ni	Cr	Mo	N
TP410	S41000	0.15 max	1.00 max	0.040 max	0.030 max	---	11.5-13.5	---	---
	S42035	0.08 max	1.00 max	0.045 max	0.030 max	1.0-2.5	13.5-15.5	---	0.30-0.50
TP430	S43000	0.12 max	1.00 max	0.040 max	0.030 max	---	16.0-18.0	---	---
TP446-1	S44600	0.025 max	1.50 max	0.040 max	0.030 max	≤0.75	23-27	---	0.025 max
TP446-2	S44600	0.012 max	1.50 max	0.040 max	0.030 max	≤0.50	23-27	---	0.025 max
26-3-3	S44660	0.030 max	1.50 max	0.040 max	0.030 max	1.0-3.5	25-28	---	0.040 max

 

Mechanical Properties

Grade	UNS	Tensile Strength, min ksi MPa	Yeild Strength, min ksi MPa	Elongation in 2 in or 50mm, min %	Rockwell Hardness B Scale
TP410	S41000	60 (415)	30 (205)	20	95
	S42035	80 (550)	55 (380)	16	88
TP430	S43000	60 (415)	35 (240)	20	90
TP446-1	S44600	70 (485)	40 (275)	18	95
TP446-2	S44600	65 (450)	40 (275)	20	95
26-3-3	S44660	85 (585)	65 (450)	20	25

Production Show

1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking

100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.

FAQ

Q: Are you trading company or manufacturer ?

A: A professional steel pipes materials inventor, manufacturer and solution provider

Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples of carbon seamless steel tube ? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.

Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

If you have another question, pls feel free to contact us

TORICH ASTM A268 Welded Stainless Steel Tube For General Corrosion Resisting Service