China Nickel Alloy Pipe manufacturer

TOBO ALLOY GROUP

TOBO Alloy Group is a mature, steady and energetic high-tech company, specializing in manufacture of high-temperature alloys and corrosion resistant alloys, such as Hastelloy, Haynes, Monel, Inconel, Incoloy and nickel.

News

February 16, 2022

Seamless 225*15 mm L-3400 mm Stainless Steel Seamless Pipes AISI 420

Seamless 225*15 mm L-3400 mm Stainless Steel Seamless Pipes AISI 420

 

Detailed Information

About Stainless Steel Pipe
Standard
Description
ASTM A312/A312M
Seamless and welded austenitic stainless steel pipe.
ASTM A358/A358M
Electric-Fusion-Welded (EFW) austenitic chromium-nickel alloy steel pipe for high temperature service.
ASTM A409/A409M
Welded large diameter austenitic steel pipe for corrosive or high temperature service.
ASTM A731/A731M
Seamless and welded ferritic and martensitic stainless steel pipe.
ASTM A790/A790M
Seamless and welded ferritic/austenitic stainless steel pipe.
ASTM A450/A450M
General requirements for carbon, ferritic alloy and austenitic alloy steel tubes.
ASTM A530/A530M
General requirements for specialised carbon and alloy steel pipe.
JIS G3459
Stainless steel pipes.
ANSI/ASME B36.10M
Welded and seamless wrought steel pipe.
ANSI/ASME B36.19M
Stainless steel pipe.
Higher austenitic
 
ASTM A673
UNS N08904 welded pipe.
ASTM A677
UNS N08904 seamless pipe and tube.
Product Paramenters
Pipe & Pipe Fittings
Seamless Pipe in Titanium Grades 1, 2, 5, 7, 9 and 12
Seamless Pipe in Duplex UNS S31803 & S32205
Seamless Pipe in Super Duplex UNS S32750 & S32760
Seamless Pipe in 6 Moly UNS S31254, N08925 & N08926
Seamless Pipe in Copper Nickel UNS C70600 C70620 C7060X C7150 C71520 C71640
Welded Pipe in Duplex UNS S31803 & S32205
Welded Pipe in Super Duplex UNS S32750 & S32760
Welded Pipe in 6 Moly UNS S31254, N08926 & N08925
Welded Pipe in Copper Nickel UNS C70600 C70620 C7060X C7150 C71520 C71640
Seamless & Welded Butt-weld fittings in Titanium Grades 1, 2, 5, 7, 9 and 12
Seamless & Welded Butt-weld fittings in Duplex UNS S31803 & S32205
Seamless & Welded Butt-weld fittings in Super Duplex UNS S32750 & S32760
Seamless & Welded Butt-weld fittings in 6 Moly UNS S31254, N08925 & N08926
Seamless & Welded Butt-weld fittings in Copper Nickel UNS C70600 C70620 C7060X C7150 C71520 C71640

 

 

Standard ASME/ANSI B16.9
Size 1/2’’~48’’(Seamless);16’’~72’’(Welded)
Wall thickness Sch5~Sch160XXS
Manufacturing process Push, Press, Forge, Cast, etc.
Material Carbon steel, stainless steel, alloy steel, duplex stainless, nickel alloy steel
Carbon steel ASTM A234 WPB, WPC;
Stainless steel

304/SUS304/UNS S30400/1.4301

304L/UNS S30403/1.4306;

304H/UNS S30409/1.4948;

309S/UNS S30908/1.4833

309H/UNS S30909;

310S/UNS S31008/1.4845;

310H/UNS S31009;

316/UNS S31600/1.4401;

316Ti/UNS S31635/1.4571;

316H/UNS S31609/1.4436;

316L/UNS S31603/1.4404;

316LN/UNS S31653;

317/UNS S31700;

317L/UNS S31703/1.4438;

321/UNS S32100/1.4541;

321H/UNS S32109;

347/UNS S34700/1.4550;

347H/UNS S34709/1.4912;

348/UNS S34800;

Alloy steel

ASTM A234 WP5/WP9/WP11/WP12/WP22/WP91;

ASTM A860 WPHY42/WPHY52/WPHY60/WPHY65;

ASTM A420 WPL3/WPL6/WPL9;

Duplex steel

ASTM A182 F51/S31803/1.4462;

ASTM A182 F53/S2507/S32750/1.4401;

ASTM A182 F55/S32760/1.4501/Zeron 100;

2205/F60/S32205;

ASTM A182 F44/S31254/254SMO/1.4547;

17-4PH/S17400/1.4542/SUS630/AISI630;

F904L/NO8904/1.4539;

725LN/310MoLN/S31050/1.4466

253MA/S30815/1.4835;

 

 

Nickel Alloy


Standard

· ASTM / ASME SB 336

· UNS 10276 (HASTELLOY C 276 )

· UNS 2200 (NICKEL 200 )

· UNS 2201 (NICKEL 201 )

· UNS 4400 (MONEL 400 )

· UNS 8020 (ALLOY 20 / 20) CB 3

· UNS 8825 INCONEL (825 )

· UNS 6600 (INCONEL 600 )

· UNS 6601 (INCONEL 601 )

· UNS 6625 (INCONEL 625 )

· UNS 5500(MONEL K500)

· UNS 8800(INCONEL 800)

· UNS 8810(INCONEL 800H)

 

Alloy Steel ubend
ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91

Duplex Steel ubend
ASTM A 815 UNS NO S 31803, S 32205, S 32760, S 32750

Copper Nickel
C70600(90:10), C71500(70:30), C71640.

 

Stainless Steel Tubes Size for Heat Exchanger


Inch to mm Chart

Inches Decimal Millimeters
1/16″ .0625 1.59 mm
1/8″ .1250 3.18 mm
3/16″ .1875 4.76 mm
1/4″ .2500 6.35 mm
5/16″ .3125 7.94 mm
3/8″ .3750 9.53 mm
7/16″ .4375 11.11 mm
1/2″ .5000 12.70 mm
9/16″ .5625 14.29 mm
5/8″ .6250 15.88 mm
11/16″ .6875 17.46 mm
3/4″ .7500 19.05 mm
13/16″ .8125 20.64 mm
7/8″ .8750 22.23 mm
15/16″ .9375 23.81 mm
1″ 1.00 25.40 mm
1 1/4″ 1.25 31.75 mm
1 1/2″ 1.50 38.10 mm
2″ 2.00 50.80 mm

 


Stainless Steel ubend :

ASTM A403 WP Gr. 304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L, 316TI, 316H, 304L

Carbon Steel ubend
ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.

Low Temperature Carbon Steel
ASTM A420 WPL3 / A420WPL6

Alloy Steel ubend
ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91

Duplex Steel ubend
ASTM A 815 UNS NO S 31803, S 32205, S 32760, S 32750

Copper Nickel
C70600(90:10), C71500(70:30), C71640.

 

 

TEST CERTIFICATE
Mill Test Certificate as per EN 10204 / 3.1

Advanced capabilities for U-bent tubes:

  1. Reliable bending machines
  2. Precision bending dies
  3. Eddy current test before bending
  4. Bending up to 105’(32m) developed length
  5. Electric resistance stress relief annealing after bending
  6. Hydrostatic test after bending
  7. OD and WT reduction Testing
  8. Full bending radius and tube legs tolerance check
  9. Stack-rack boxing

 

2) U Bend Tube Minimum tube wall thickness in the bend part (T min)T(min) ≥ (SW × (2×R + D))/( 2× (R+D)
where: SW is smallest wall thickness
D Nominal outside diameter
R radius

3) U Bend Tube Radius tolerance
1) for R 100 mm +/- 3 mm
2) for R ≥ 100 mm +/- 5 mm

4). U bend Pipe Straightness tolerance max. 1,5 mm per 1 m
U Bend Tube ends: plain, vertically cut to the tube axis

U Bend Tube OD in mm can be bent upon agreement: 15.8 16.0 17.0 18.0 19.05 20.0 21.3 25.4 26.7 31.8 32.0 38.1mm

U bend Tube Initial Length
Maximum lengths of 27000mm can be supplied on request

 

 

Packing and Shipping

Package:Standard export carton packing.

Delivery time:stock 7-10 workign days after confirming order,detail delivery date should be decided according to

production season and order quantity.

 


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