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Company Introduction
HAOHUA INDUSTRY offers the widest variety of sizes available in the industry. All of our products are domestically sourced, developed, and produced, which means our customers have immediate access to exactly the products they need for their particular application. And you are assured of the highest quality and manufacturing standards and a local, concerned, customer service presence.
Product Description
SA 213 heat exchanger seamless stainless steel U bend tube welded pipe
U bending is done by cold working process.
U bending is done to the required radous ae per customer drawings.
The bend portion and six inch leg is stress relieved by resistance heating.
Inert gas (Argon) is passed through it at the required flow rate to avoid oxidation in ID.
The radius is checked for its OD and wall thinning with the recommended specification.
The physical properties and micro-structure is checked at three different position.
Visual inspection for waviness and cracks is done with Dye Penetrant Test.
Each tube is then hydro tested at the recommended pressure to check for leakage.
Cotton ball test is done to check the ID cleanliness of the tube.
Thereafter pickled,dired,marked and packed.
Product name | SA 213 heat exchanger seamless stainless steel U bend tube welded pipe |
Material | 304/304L/316/316L/321/309S/310S/179 or your demands |
Standard | JIS, AISI, ASTM, GB, DIN, EN |
Thickness | 0.12mm--3mm or customized |
Out diameter | 19.05-168.3mm or customized |
Country of origin | China |
Delivery time | 30 days after your deposit, or according the quantity |
Process method | Code drawn,Stave,gas metal arc welding,annealed with Gaseous argon protection,hardening,solution treatment,eddy current testing |
EN-DIN standard steel grade | 1.413,1.4318,1.4307,1.4306,1.4311,1.4301,1.4948,1.4303,1.4541,1.4878,1.4404,1.4435,1.4401 |
EN-standard steel grade | X10CrNi18-8,X2CrNiN18-7,X2CrNi18-9,X2CrNi19-11,X2CrNin18-10, X5CrNi18-10,X2CrNi18-9,X5CrNi18-10,X6CrNi18-11,X5CrNi18 12,X6CrNi18-11 etc |
ASTM/AISI standard steel grade | 301,301LN,304L,304LN,304,304H,305,321,321H,316L,316 etc |
UNS | S30403,S30453,S30400,S30409,S32100,S32109,S31603,S31600 etc |
Company Introduction
HAOHUA INDUSTRY offers the widest variety of sizes available in the industry. All of our products are domestically sourced, developed, and produced, which means our customers have immediate access to exactly the products they need for their particular application. And you are assured of the highest quality and manufacturing standards and a local, concerned, customer service presence.
Product Description
SA 213 heat exchanger seamless stainless steel U bend tube welded pipe
U bending is done by cold working process.
U bending is done to the required radous ae per customer drawings.
The bend portion and six inch leg is stress relieved by resistance heating.
Inert gas (Argon) is passed through it at the required flow rate to avoid oxidation in ID.
The radius is checked for its OD and wall thinning with the recommended specification.
The physical properties and micro-structure is checked at three different position.
Visual inspection for waviness and cracks is done with Dye Penetrant Test.
Each tube is then hydro tested at the recommended pressure to check for leakage.
Cotton ball test is done to check the ID cleanliness of the tube.
Thereafter pickled,dired,marked and packed.
Product name | SA 213 heat exchanger seamless stainless steel U bend tube welded pipe |
Material | 304/304L/316/316L/321/309S/310S/179 or your demands |
Standard | JIS, AISI, ASTM, GB, DIN, EN |
Thickness | 0.12mm--3mm or customized |
Out diameter | 19.05-168.3mm or customized |
Country of origin | China |
Delivery time | 30 days after your deposit, or according the quantity |
Process method | Code drawn,Stave,gas metal arc welding,annealed with Gaseous argon protection,hardening,solution treatment,eddy current testing |
EN-DIN standard steel grade | 1.413,1.4318,1.4307,1.4306,1.4311,1.4301,1.4948,1.4303,1.4541,1.4878,1.4404,1.4435,1.4401 |
EN-standard steel grade | X10CrNi18-8,X2CrNiN18-7,X2CrNi18-9,X2CrNi19-11,X2CrNin18-10, X5CrNi18-10,X2CrNi18-9,X5CrNi18-10,X6CrNi18-11,X5CrNi18 12,X6CrNi18-11 etc |
ASTM/AISI standard steel grade | 301,301LN,304L,304LN,304,304H,305,321,321H,316L,316 etc |
UNS | S30403,S30453,S30400,S30409,S32100,S32109,S31603,S31600 etc |
