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Stub End

We are manufacture, supplier and exporter for stub end , stub end divided in to Europe system, japan system,America system and lapp Joints.
ASME/ANSI B16.9 for long type stub end, MSS SP 43 for short stub end.
HG20621 for short stub end, GB9118 1TYPE for long stub end, and 2 type for short stub end. Lapped joints for DIN2641 and DIN 2642 flange
Usually it is a accessories loose flange. Loose flange is commonly used in situations where the medium temperature and pressure are not high but the corrosiveness of the medium is strong.

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Product Description

FORMING TYPE:

1/2"-16"Integal Cold Forming 18"-48"Argon Welding Forming

SIZE：

1/2"-48"

WALL THICKNESS:

SCH5S-SCH160

STANDARD:

ASME/ANSI B16.9 MSS-SP-43 HG20621 GB9118 SH3406 HG20599 DIN2641(PN6) DIN2642(PN6)

Material

Austenitic Stainless Steel:

304,1.4301,X5CrNi18-10

304L,1.4306 ,S30403,1.4307, 03X18H11

304H,S30415,1.4948,S30409

316L,1.4401,1.4404,1.4435,03X17H14M3

316Ti/08X17H13M2T,S31615,1.4571,S31635 316H

321/08X18T10T,321H/12X18H10T,1.4541

317,317L/03X16H15M3B,1.4449,1.4438

347/08X18H12B,347H,1.4550,1.4961

310,310S/S31008/10X23H18,310H,1.4845

309,309S,309H,1.4833

Super Austenitic Stainless Steel:

N08904(904L),1.4539

S31254,S254Mo,1.4547

S30432、S31042、 N08367（6Mo）、S30803/253Ma

Super Duplex Steel:

S31500

S32101,1.4162

S32003

S32304,1.4362,UNS S32304

S31803,S32205,1.4462

S32750,1.4410,2507

S32760 ,1.4501

Nickel:

N4/UNS N02201

N6/UNS N02200

Titanium& Titanium Alloy:

GR1,GR2,GR3,GR4,GR5,GR7,GR9,GR11,GR12

Nickel Alloy Steel:

Alloy B/ N10001

Alloy B2/N10665

Alloy B3/N10675

AlloyC4/N06455

Alloy C22/N06022

Alloy C276/N10276, 2.4819

Alloy C2000/N06200

Alloy G35/N06035

Alloy G30/N06030,

Alloy S/N06635

Alloy N/N10003

Alloy X/N06002

Alloy 188/R30188

Alloy 230/N06230

Alloy 556/R30556

Alloy 600/ N06600

Alloy 601/N06601

Alloy 617/N06617

Alloy625/N06625

Alloy718/N07718

Alloy X750/N07750

Alloy800/N08800, UNS N08800

Alloy 800H/N08810, UNSN08810

Alloy 800HT/N08811

Alloy 825/N08825,2.4858

Alloy 925/ N09925

Alloy 926/N08926

Alloy 400/ N04400

Alloy K500/UNS N05500

174PH, 17-7PH, 15-7PH...

Processes stainless Steel Butt Welded Fitting

Our Quality

Our Quality Management System has been certified to ISO9001 to gurantee all production processes are controlled so as to insure that all materials are traceable and only the highest quality material are delivered to the customer

All materials are tested by destructive and non-destructive testing methods which are performed at various stages in the production process according to quality plans

Non-destructive tests:

Ultrasonic test
Radiographic examination
PMI test
Penetration Test
Dimension examination
Surface examination
Hardness Test

Destructive tests:

Metallographic examination
Intergranular corrosion test
Grain size test
Mechanical property test
Tension test
Bending test
Impact test

◆ We will ensure the thickness of the back of elbow, do not cut corner.

◆ We will never use 304 instead of 304L for pipe fittings made of 304L.

◆ Pipe fittings surface takes sandblasted, so the surface will be more beautiful.

Approvals:

ISO9001/14001/18001

PED97/23/EC

AD2000-Merkblatt W0

PMI TEST FOR RAW MATERIAL

CHEMICAL COMPOSITION TEST

INSPECT FOR CUTTING MATERIAL

INSPECT FOR PRODUCT

HARDNESS TEST

INSPECT FOR PICKLING

INSPECT FOR MACHINING

PENETRANT INSPECTION

PASSIVATION FILM TEST

METALLOGRAPHIC TEST

IMPACT TEST

TENSILE TEST

Direct-reading Spectrometer

Laboratory

Each Final Product with Size , Appearance inspection and PMI Test

Stub end Application

Short stub end uses in oil and gas pipeline
Long stub end uses in chemical industry
Stainless steel stub end uses in plumbing
Butt weld stub end uses in heating
Nickel alloy stub end uses in water supply systems
Duplex steel stub end uses in power plant
Stainless steel butt weld stub end uses in paper industry
Super duplex steel stub end uses in general purpose applications
Monel stub end uses in fabrication industry

Hastelloy alloy stub end uses in petroleum
JIS stub end uses in papermaking
ASME B16.9 stub end uses in shipbuilding
high quality stub end uses in petrochemical
alloy 20 stub end uses in natural gas industry
MSS SP 43 stub end uses in ocean engineering
Monel 400 stub end uses in nuclear industry
Monel 800 stub end uses in food and beverage
DIN stub end uses in electrical powerplant
Stainess steel butt weld long stub end uses in pharmacy

We are stock, distribution, manufacturer, suppliers, stockholder, traders, wholesaler, importer and exporter for tube cap in stainless steel, duplex steel.

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