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factory Outlets for 201 202 304 304L 316 904L Polishing Surface 2b Ba No. 1 No. 4 Hl 8K Welded Round Stainless Steel Pipe Tube Construction Automobile Technology

factory Outlets for 201 202 304 304L 316 904L Polishing Surface 2b Ba No. 1 No. 4 Hl 8K Welded Round Stainless Steel Pipe Tube Construction Automobile Technology Featured Image
  • factory Outlets for 201 202 304 304L 316 904L Polishing Surface 2b Ba No. 1 No. 4 Hl 8K Welded Round Stainless Steel Pipe Tube Construction Automobile Technology

Short Description:

Standard: ASTM A240/A240M, ASTM A480/480M, AMS 5524, AMS 5507

Grade: 316, UNS S31600

Density: 7.98 x 103 Kg/m3

Width: 1000mm, 1200mm, 1220mm, 1500mm, 1800mm, 2000mm, 2200mm

Length: 2438mm, 3000mm, 6000mm, 8000mm, 12000mm

Thickness: 0.3 – 50mm

Manufacturing Process: Hot Rolled/Cold Roll


Product Detail

Product Tags

We believe in: Innovation is our soul and spirit. Excellent is our life. Buyer want is our God for factory Outlets for 201 202 304 304L 316 904L Polishing Surface 2b Ba No. 1 No. 4 Hl 8K Welded Round Stainless Steel Pipe Tube Construction Automobile Technology, Because we stay within this line about 10 years. We got very best suppliers aid on quality and cost. And we had weed out suppliers with poor high-quality. Now lots of OEM factories cooperated with us too.
We believe in: Innovation is our soul and spirit. Excellent is our life. Buyer want is our God for China Stainless Steel Pipe and Stainless Steel Tube, We welcome customers from all over the world come to discuss business. We supply high quality products, reasonable prices and good services. We hope to sincerely build business relationships with customers from at home and abroad, jointly striving for a resplendent tomorrow.

ASTM A268 Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing

 

Introduction

ASTM A268 specification covers a number of grades of nominal-wall-thickness, welded ferritic and martensitic stainless steel tubing for general corrosion-resisting and high-temperature service like heaters, burners, Petroleum Refining and Petrochemical Processing, Heat exchangers, Thermal Processing, Biomedical, food processing equipment, automotive exhausts, and hot water tanks and more.

 

Specification

Standard: ASTM A268/A268M-2022

Grade: TP405, TP410, TP429, TP430, TP443, TP446-1, TP446-2, TP409

Grade: TP439, S41500, S44400, S44700, S44635, TP468

Outside Diameter: 12.7 – 203.2mm

Wall Thickness: 0.4 – 8.0mm

Length: 3000 – 36000mm

Type: Straight Tube, U-Tube

 

 

TP405, TP410, TP429, TP430, TP443, TP446-1, TP446-2, TP409 Chemical Composition (wt%):

Grade TP405 TP410 TP429 TP430 TP443 TP446–1 TP446–2 . . . TP409
UNS No. S40500 S41000 S42900 S43000 S44300 S44600 S44600 S40800 S40900
Element Composition, %
C, max 0.08 0.15 0.12 0.12 0.2 0.2 0.12 0.08 0.08
Mn, max 1 1 1 1 1 1.5 1.5 1 1
P, max 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.045 0.045
S, max 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.045 0.03
Si, max 1 1 1 1 1 1 1 1 1
Ni 0.50 max . . . . . . . . . 0.75 max 0.75 max 0.50 max 0.80 max 0.50 max
Cr 11.5–14.5 11.5–13.5 14.0–16.0 16.0–18.0 18.0–23.0 23.0–27.0 23.0–27.0 11.5–13.0 10.5–11.7
Al 0.10–0.30 . . . . . . . . . . . . . . . . . . . . . . . .
Cu . . . . . . . . . . . . 0.90–1.25 . . . . . . . . . . . .
N … … … … … 0.25 0.25 … …
Ti … … … … … … … 12 x C min; 1.10 max 6 x C min; 0.75 max

TP439, S41500, S44400, S44700, S44635, TP468 Chemical Composition (wt%):

 

 

Grade TP439 . . . TPXM-27 18Cr-2Mo 29-4 29-4-2 26-3-3 25-4-4 TP468
UNS S43035 S41500 S44627 S44400 S44700 S44800 S44660 S44635 S46800
Element Composition, %
C, max 0.07 0.05 0.01 0.025 0.01 0.01 0.03 0.025 0.03
Mn,max 1 0.5–1.0 0.4 1 0.3 0.3 1 1 1
P, max 0.04 0.03 0.02 0.04 0.025 0.025 0.04 0.04 0.04
S, max 0.03 0.03 0.02 0.03 0.02 0.02 0.03 0.03 0.03
Si, max 1 0.6 0.4 1 0.2 0.2 1 0.75 1
Ni 0.50 max 3.5–5.5 0.5max 1.00 max 0.15 max 2.0–2.5 1.0–3.50 3.5–4.5 0.5
Cr 17.00–19.00 11.5–14.0 25.0–27.5 17.5–19.5 28.0–30.0 28.0–30.0 25.0–28.0 24.5–26.0 18.00–20.00
Mo … 0.5–1.0 0.75–1.50 1.75–2.50 3.5–4.2 3.5–4.2 3.0–4.0 3.5–4.5 . . .
Al, max 0.15 . . . … … … … … … . . .
Cu,max … . . . 0.2 … 0.15 0.15 … … . . .
N, max 0.04 . . . 0.015 0.035 0.020 0.020 0.04 0.035 0.03
Ti 0.20 + 4(C+ N) min; 1.1 max … … (Ti + Cb) 0.20 + 4 (C + N) min; 0.8 max … … (Ti + Cb)=0.20–1.00 and 6 x (C + N) min (Ti + Cb) = 0.20 + 4 (C + N) min 0.8 max 0.07–0.30
Cb … . . . 0.05–0.20 … … … … … 0.10–0.60
(Ti + Cb)=0.2+4(C+N) min; 0.8 max

ASTM A268/A268M Stainless Steel Tubing Mechanical Properties:

_20220807141420

ASTM A268/A268M Stainless Steel Tubing Hardness requirements:

_20220807141632

 

Manufacture

The tubes shall be made by the seamless or welded process with no filler metal added.

Heat Treatment

As a final heat treatment, tubes shall be reheated to a temperature of 1200 °F [650 °C] or higher and cooled (as appropriate for the grade) to meet the requirements of this specification.

The martensitic grade UNS S 41500 shall be reheated to a temperature of 950 °F [510 °C] or higher and cooled as appropriate to meet the requirements of this specification.

 

Surface Condition

All tubes shall be free of excessive mill scale, suitable for inspection. A slight amount of oxidation will not be considered as scale. Any special finish requirements shall be subject to agreement between the manufacturer and the purchaser.

 

Product Marking

In addition to the marking described in Specification A1016/A1016M, the marking shall indicate whether the tubing is seamless or welded. Marking Sample:

LINKUN ASTM A268/A268M UNS S44400 SMLS 44.5 X 4 X 12000MM HEAT NO. XXXXXX MADE IN CHINA

Packing

1. Covered with seaworthy bags, hexagonal bundled.

2. Packed in plywood boxes/wooden crates.

3. Packed in steel-framed boxes.

Linkun is one of the leading China Stainless Steel Pipe And Tube manufacturers and suppliers, if you want to buy or import best high-quality astm a268 stainless steel tubing professional company, factory, seller, and exporter, or if you are checking steel brands, please feel free to contact us.

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We believe in: Innovation is our soul and spirit. Excellent is our life. Buyer want is our God for factory Outlets for 201 202 304 304L 316 904L Polishing Surface 2b Ba No. 1 No. 4 Hl 8K Welded Round Stainless Steel Pipe Tube Construction Automobile Technology, Because we stay within this line about 10 years. We got very best suppliers aid on quality and cost. And we had weed out suppliers with poor high-quality. Now lots of OEM factories cooperated with us too.
factory Outlets for China Stainless Steel Pipe and Stainless Steel Tube, We welcome customers from all over the world come to discuss business. We supply high quality products, reasonable prices and good services. We hope to sincerely build business relationships with customers from at home and abroad, jointly striving for a resplendent tomorrow.

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