Name: GB/T 14291 Welded Steel Pipes For Ore Pulp Transportation
Brand: TORICH INTERNATIONAL LIMITED
SKU: GB/T 14291
Price: 900.00 USD
Availability: InStock

Τροποποιημένο:	1 τόνοι
τιμή:	800-1000 USD/Tons
Τυπική συσκευασία:	Σε δεσμίδες ή σε ξύλινα κουτιά.
Περίοδος παράδοσης:	20-30 ημέρες με τα προϊόντα
μέθοδος πληρωμής:	L/C, D/A, D/P, T/T, Western Union, MoneyGram
Ικανότητα εφοδιασμού:	60000 τόνοι/τόνοι ανά έτος

Πληροφορίες λεπτομερειών

Περιγραφή του προϊόντος

Λεπτομέρειες

Τόπος καταγωγής

Zhejiang/Κίνα

Μάρκα

TORICH

Πιστοποίηση

ISO9001, ISO14001, TS16949

Αριθμό μοντέλου

GB/T 14291

Υλικό:

Συγκολλημένος σωλήνας άνθρακα/χαμηλού κράματος από χάλυβα

Πρότυπο:

GB/T 14291-2016

βαθμοί:

L245J/BJ, L290J/X42J, L320J/X46J, L360J/X52J, L390J/X56J

Διαδικασία Παραγωγής:

Συγκολλημένος σωλήνας ERW / HFW. άλλες συγκολλημένες διαδικασίες κατόπιν συμφωνίας

Εξωτερική διάμετρος:

Κοινό εύρος: 114,3–1420 mm; μεγέθη έργου κατά παραγγελία

Πάχος τοιχώματος:

Κοινό εύρος: 4–25 mm; βαρύτερο τοίχωμα λόγω της πίεσης του πολτού και του περιθωρίου φθοράς

Μήκος:

1–12 m, προσαρμόσιμο

Κατεργασία με θερμοκρασία:

Ως συγκολλημένη ή θερμική επεξεργασία ραφής συγκόλλησης, ανάλογα με την ποιότητα, τη διαδικασία συγκ

Περιγραφή του προϊόντος

GB/T 14291 Welded Steel Pipes For Ore Pulp Transportation 0

GB/T 14291 L245J/BJ, L290J/X42J, L320J/X46J, L360J/X52J, L390J/X56J Welded Steel Pipes for Ore Pulp Transportation

GB/T 14291 welded steel pipes are designed for ore powder, ore pulp, mineral slurry, and dredging pipeline service where pipe strength, weld integrity, dimensional stability, and abrasion allowance are critical. The current GB/T 14291-2016 standard is titled “Welded steel pipe for ore pulp transportation”, was issued on August 29, 2016, and implemented on July 1, 2017. It applies to welded steel pipes used for ore powder, ore slurry, river dredging, and harbor dredging pipeline systems.

Specification

Item	Description
Material	Carbon / low-alloy welded steel pipe
Standard	GB/T 14291-2016
Grades	L245J/BJ, L290J/X42J, L320J/X46J, L360J/X52J, L390J/X56J
Manufacturing Process	ERW / HFW welded pipe; other welded processes by agreement
Outside Diameter	Common range: 114.3–1420 mm; project sizes by order
Wall Thickness	Common range: 4–25 mm; heavier wall by slurry pressure and wear allowance
Length	1–12 m, customizable
Tolerance Range	According to GB/T 14291 order class; tighter OD / WT tolerance by agreement
Straightness	Controlled for field welding and pipe rotation stability; project requirement by purchase order
Surface Condition	Bare, black painted, anti-rust oil, external coating, internal lining or coating by agreement
Heat Treatment	As-welded or weld seam heat-treated, depending on grade, welding process, and purchaser requirement
Inspection	Chemical analysis, tensile test, weld inspection, dimensional inspection, hydrostatic test / NDT as required

Main Features

Defined yield-strength grades from 245 MPa to 390 MPa
The selected grades provide minimum yield strength levels of 245, 290, 320, 360, and 390 MPa, allowing buyers to match pipe grade with slurry pressure, support span, installation route, and wear allowance.
Controlled carbon equivalent for weldability
The listed slurry-pipeline grades typically use controlled carbon and microalloying. Publicly available grade data for these L245J–L390J slurry-pipeline steels shows maximum carbon around 0.22%, phosphorus ≤0.025%, sulfur ≤0.015%, and carbon equivalent limits such as CE ≤0.43% and Pcm ≤0.23%, supporting field weldability and repair welding control.
Suitable for abrasive slurry service with lining or coating options
Ore pulp and tailings pipelines are exposed to abrasion, erosion, corrosion, and velocity-related wear. Research on slurry pipelines shows that slurry velocity strongly affects erosion-corrosion severity, while mining-industry lining references emphasize internal barriers to reduce abrasion and corrosion of carbon steel pipelines.
Weld integrity inspection for long pipeline reliability
ERW/HFW pipe quality control commonly includes online NDT, flattening / flaring tests, hydrostatic testing, and weld-zone inspection. Automated ultrasonic systems are widely used for full-body and ERW weld inspection.

Our Advantages

Buyer Concern	Our Control Method
Abrasion and early wall loss in ore slurry service	We recommend wall-thickness selection based on slurry concentration, velocity, particle size, pressure, and maintenance cycle. Internal lining, coating, or wear allowance can be specified for high-solid ore pulp lines.
Weld reliability during pressure cycling and field installation	We control weld seam quality through weld-zone inspection, dimensional checks, hydrostatic testing or NDT, and traceable heat documentation.
Grade selection uncertainty	We match L245J/BJ to L390J/X56J according to pressure class, route length, support condition, and welding requirements, avoiding unnecessary over-specification while keeping yield strength and toughness appropriate for slurry service.

Executed Standards

Standard System	Applicable Reference
GB	GB/T 14291-2016, welded steel pipe for ore pulp transportation
ASTM	ASTM A53 / ASTM A139 can be referenced for general welded carbon steel pipe comparison, not as direct grade equivalents
EN	EN 10217 series can be referenced for welded steel tubes for pressure purposes, subject to project comparison
GOST	GOST welded steel pipe standards may be reviewed for CIS-region project compatibility
JIS	JIS G3452 / JIS G3454 may be referenced for carbon steel pipe comparison, not direct slurry-grade equivalents
API	API 5L grade names such as X42, X46, X52, and X56 are useful for grade-strength comparison, but GB/T 14291 purchase should follow the GB grade and project specification

Application Field

Ore-processing plant tailings slurry discharge pipeline — used to transport abrasive tailings slurry from the concentrator thickener or tailings pump station to the tailings storage facility.

Chemical Composition

Grade	C % max	Si % max	Mn %	P % max	S % max	Cr %	Nb % max	V % max	Ti % max	CE max	Pcm max
L245J/BJ	0.22	0.45	0.45–1.40	0.025	0.015	—	0.05	0.05	0.04	0.43	0.23
L290J/X42J	0.22	0.45	1.30–1.70	0.025	0.015	0.10–0.40	0.05	0.05	0.04	0.43	0.23
L320J/X46J	0.22	0.45	1.40–1.70	0.025	0.015	0.10–0.40	0.05	0.05	0.04	0.43	0.23
L360J/X52J	0.22	0.45	1.40–1.70	0.025	0.015	0.10–0.40	0.05	0.05	0.04	0.43	0.23
L390J/X56J	0.22	0.45	1.40–1.70	0.025	0.015	0.10–0.40	0.05

Mechanical Properties

Grade	Minimum Yield Strength, MPa	Tensile Strength, MPa	Minimum Elongation, %
L245J/BJ	245	415–760	22
L290J/X42J	290	415–760	20
L320J/X46J	320	435–760	18
L360J/X52J	360	460–760	16
L390J/X56J	390	490–760	14

GB/T 14291 Welded Steel Pipes For Ore Pulp Transportation 1

GB/T 14291 Welded Steel Pipes For Ore Pulp Transportation 2

GB/T 14291 Welded Steel Pipes For Ore Pulp Transportation 4

GB/T 14291 Welded Steel Pipes For Ore Pulp Transportation 6

TORICH Group, an one-stop service provider of raw materials engaged in raw material production, R&D and

trade, has 30+ years of experience in the market, exported to 56 +countries, and won good reputation and

credibility among domestic and foreign customers.

The company's production plant covers an area of over 10,000 square meters, with an annual production

capacity of 50,000 tons of materials and a comprehensive trading and warehousing capacity of 100,000 tons, which can satisfy customers' personalized needs for raw materials in terms of diversity and timeliness.

The group holds shares in more than ten domestic production entities, whose main products include

seamless steel pipes ( carbon steel and stainless steel), welded pipes ( carbon steel and stainless steel), pipe fittings ( carbon steel and stainless steel), titanium (titanium tubes, titanium rods, titanium cakes, titanium plates, etc.), aluminum (aluminum tubes, aluminum rods, aluminum die casting, aluminum casting, CNC machining), and CNC deep processing of metal materials such as tubes, rods, and casting parts.

Over the past 30 years, the company has been gradually developing new technologies and materials to meet

the growing needs of customers and various diversified needs, exporting to more than 56 countries and still

increasing the number of exporting countries, aiming to help customers to solve the demand for raw materials, and to facilitate one-stop purchasing for customers.

Q: Are you trading company or manufacturer ?

A: manufacturer,also can do trading.

Q: How long is your delivery time?

A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples? 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<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.

If you have another question, pls feel free to contact with me.

Ετικέτες:

τραβηγμένος στο κρύο άνευ ραφής σωλήνας,

χωρίς συγκόλληση σωλήνας ακρίβειας,

Μαύρος σωλήνας χάλυβα άνθρακα

Συνιστώμενα προϊόντα

Επαγγελματική άνευ ραφής τραβηγμένη στο κρύο υψηλή ακρίβεια ASTM σωλήνων χάλυβα ακρίβειας/πρότυπα DIN

Επικοινωνήστε τώρα

Ο κοίλος δομικός ήπιος άνευ ραφής σωλήνας χάλυβα ακρίβειας ένωσε στενά γύρω από τη μορφή 10# - 45#

Επικοινωνήστε τώρα

Δομικός σωλήνας ικριωμάτων συγκόλλησης SANXIN, γαλβανισμένος σωλήνας χάλυβα καυτής εμβύθισης ακρίβειας

Επικοινωνήστε τώρα

GOST 3262 75 νερό/δηλητηριάζει με αέρια το χωρίς συγκόλληση σωλήνα γραμμών, άνευ ραφής σωλήνας χάλυβα πάχος 2 - 5mm

Επικοινωνήστε τώρα

Αρίστης ποιότητας κοίλη άνευ ραφής ένδυση σωλήνων χάλυβα ακρίβειας - ανθεκτικό μαύρο χρώμα Q195

Επικοινωνήστε τώρα

Στρογγυλά τραβηγμένα στο κρύο ASTM A192 χάλυβα ακρίβειας λεβήτων άνευ ραφής πρότυπα σωλήνων

Επικοινωνήστε τώρα

Ηλεκτρική συγκόλληση αντίστασης γύρω από τη σωλήνωση, χωρίς συγκόλληση σωλήνες ASTM A178/A178M χάλυβα άνθρακα ανταλλακτών θερμότητας

Επικοινωνήστε τώρα

λεπτομέρειες για τα προϊόντα

προϊόντα

Άνευ ραφής σωλήνας χάλυβα ακρίβειας

άνευ ραφής τραβηγμένος στο κρύο σωλήνας χάλυβα

Υδραυλικός σωλήνας χάλυβα κυλίνδρων

CNC που επεξεργάζεται τα μέρη στη μηχανή

CNC μέρη αργιλίου

CNC μέρη ορείχαλκου

CNC γυρίζοντας μέρη

Σωλήνας χάλυβα ανταλλακτών θερμότητας

σωλήνας άνθρακα, σιδήρου και χάλυβα

σωλήνας χάλυβα κραμάτων

Ενωμένος στενά σωλήνας χάλυβα

σωλήνας δομικού χάλυβα

Αυτοκίνητος σωλήνας χάλυβα

GB/T 14291 Welded Steel Pipes For Ore Pulp Transportation

Τροποποιημένο:	1 τόνοι
τιμή:	800-1000 USD/Tons
Τυπική συσκευασία:	Σε δεσμίδες ή σε ξύλινα κουτιά.
Περίοδος παράδοσης:	20-30 ημέρες με τα προϊόντα
μέθοδος πληρωμής:	L/C, D/A, D/P, T/T, Western Union, MoneyGram
Ικανότητα εφοδιασμού:	60000 τόνοι/τόνοι ανά έτος

Λεπτομέρειες

Περιγραφή του προϊόντος

Λεπτομέρειες

Τόπος καταγωγής

Zhejiang/Κίνα

Μάρκα

TORICH

Πιστοποίηση

ISO9001, ISO14001, TS16949

Αριθμό μοντέλου

GB/T 14291

Υλικό:

Συγκολλημένος σωλήνας άνθρακα/χαμηλού κράματος από χάλυβα

Πρότυπο:

GB/T 14291-2016

βαθμοί:

L245J/BJ, L290J/X42J, L320J/X46J, L360J/X52J, L390J/X56J

Διαδικασία Παραγωγής:

Συγκολλημένος σωλήνας ERW / HFW. άλλες συγκολλημένες διαδικασίες κατόπιν συμφωνίας

Εξωτερική διάμετρος:

Κοινό εύρος: 114,3–1420 mm; μεγέθη έργου κατά παραγγελία

Πάχος τοιχώματος:

Κοινό εύρος: 4–25 mm; βαρύτερο τοίχωμα λόγω της πίεσης του πολτού και του περιθωρίου φθοράς

Μήκος:

1–12 m, προσαρμόσιμο

Κατεργασία με θερμοκρασία:

Ως συγκολλημένη ή θερμική επεξεργασία ραφής συγκόλλησης, ανάλογα με την ποιότητα, τη διαδικασία συγκ

Ποσότητα παραγγελίας min:

1 τόνοι

Τιμή:

800-1000 USD/Tons

Συσκευασία λεπτομέρειες:

Σε δεσμίδες ή σε ξύλινα κουτιά.

Χρόνος παράδοσης:

20-30 ημέρες με τα προϊόντα

Όροι πληρωμής:

L/C, D/A, D/P, T/T, Western Union, MoneyGram

Δυνατότητα προσφοράς:

60000 τόνοι/τόνοι ανά έτος

Περιγραφή του προϊόντος

GB/T 14291 Welded Steel Pipes For Ore Pulp Transportation 0

GB/T 14291 L245J/BJ, L290J/X42J, L320J/X46J, L360J/X52J, L390J/X56J Welded Steel Pipes for Ore Pulp Transportation

Specification

Item	Description
Material	Carbon / low-alloy welded steel pipe
Standard	GB/T 14291-2016
Grades	L245J/BJ, L290J/X42J, L320J/X46J, L360J/X52J, L390J/X56J
Manufacturing Process	ERW / HFW welded pipe; other welded processes by agreement
Outside Diameter	Common range: 114.3–1420 mm; project sizes by order
Wall Thickness	Common range: 4–25 mm; heavier wall by slurry pressure and wear allowance
Length	1–12 m, customizable
Tolerance Range	According to GB/T 14291 order class; tighter OD / WT tolerance by agreement
Straightness	Controlled for field welding and pipe rotation stability; project requirement by purchase order
Surface Condition	Bare, black painted, anti-rust oil, external coating, internal lining or coating by agreement
Heat Treatment	As-welded or weld seam heat-treated, depending on grade, welding process, and purchaser requirement
Inspection	Chemical analysis, tensile test, weld inspection, dimensional inspection, hydrostatic test / NDT as required

Main Features

Defined yield-strength grades from 245 MPa to 390 MPa
The selected grades provide minimum yield strength levels of 245, 290, 320, 360, and 390 MPa, allowing buyers to match pipe grade with slurry pressure, support span, installation route, and wear allowance.
Controlled carbon equivalent for weldability
The listed slurry-pipeline grades typically use controlled carbon and microalloying. Publicly available grade data for these L245J–L390J slurry-pipeline steels shows maximum carbon around 0.22%, phosphorus ≤0.025%, sulfur ≤0.015%, and carbon equivalent limits such as CE ≤0.43% and Pcm ≤0.23%, supporting field weldability and repair welding control.
Suitable for abrasive slurry service with lining or coating options
Ore pulp and tailings pipelines are exposed to abrasion, erosion, corrosion, and velocity-related wear. Research on slurry pipelines shows that slurry velocity strongly affects erosion-corrosion severity, while mining-industry lining references emphasize internal barriers to reduce abrasion and corrosion of carbon steel pipelines.
Weld integrity inspection for long pipeline reliability
ERW/HFW pipe quality control commonly includes online NDT, flattening / flaring tests, hydrostatic testing, and weld-zone inspection. Automated ultrasonic systems are widely used for full-body and ERW weld inspection.

Our Advantages

Buyer Concern	Our Control Method
Abrasion and early wall loss in ore slurry service	We recommend wall-thickness selection based on slurry concentration, velocity, particle size, pressure, and maintenance cycle. Internal lining, coating, or wear allowance can be specified for high-solid ore pulp lines.
Weld reliability during pressure cycling and field installation	We control weld seam quality through weld-zone inspection, dimensional checks, hydrostatic testing or NDT, and traceable heat documentation.
Grade selection uncertainty	We match L245J/BJ to L390J/X56J according to pressure class, route length, support condition, and welding requirements, avoiding unnecessary over-specification while keeping yield strength and toughness appropriate for slurry service.

Executed Standards

Standard System	Applicable Reference
GB	GB/T 14291-2016, welded steel pipe for ore pulp transportation
ASTM	ASTM A53 / ASTM A139 can be referenced for general welded carbon steel pipe comparison, not as direct grade equivalents
EN	EN 10217 series can be referenced for welded steel tubes for pressure purposes, subject to project comparison
GOST	GOST welded steel pipe standards may be reviewed for CIS-region project compatibility
JIS	JIS G3452 / JIS G3454 may be referenced for carbon steel pipe comparison, not direct slurry-grade equivalents
API	API 5L grade names such as X42, X46, X52, and X56 are useful for grade-strength comparison, but GB/T 14291 purchase should follow the GB grade and project specification

Application Field

Ore-processing plant tailings slurry discharge pipeline — used to transport abrasive tailings slurry from the concentrator thickener or tailings pump station to the tailings storage facility.

Chemical Composition

Grade	C % max	Si % max	Mn %	P % max	S % max	Cr %	Nb % max	V % max	Ti % max	CE max	Pcm max
L245J/BJ	0.22	0.45	0.45–1.40	0.025	0.015	—	0.05	0.05	0.04	0.43	0.23
L290J/X42J	0.22	0.45	1.30–1.70	0.025	0.015	0.10–0.40	0.05	0.05	0.04	0.43	0.23
L320J/X46J	0.22	0.45	1.40–1.70	0.025	0.015	0.10–0.40	0.05	0.05	0.04	0.43	0.23
L360J/X52J	0.22	0.45	1.40–1.70	0.025	0.015	0.10–0.40	0.05	0.05	0.04	0.43	0.23
L390J/X56J	0.22	0.45	1.40–1.70	0.025	0.015	0.10–0.40	0.05

Mechanical Properties

Grade	Minimum Yield Strength, MPa	Tensile Strength, MPa	Minimum Elongation, %
L245J/BJ	245	415–760	22
L290J/X42J	290	415–760	20
L320J/X46J	320	435–760	18
L360J/X52J	360	460–760	16
L390J/X56J	390	490–760	14

GB/T 14291 Welded Steel Pipes For Ore Pulp Transportation 1

GB/T 14291 Welded Steel Pipes For Ore Pulp Transportation 2

GB/T 14291 Welded Steel Pipes For Ore Pulp Transportation 4

GB/T 14291 Welded Steel Pipes For Ore Pulp Transportation 6

TORICH Group, an one-stop service provider of raw materials engaged in raw material production, R&D and

trade, has 30+ years of experience in the market, exported to 56 +countries, and won good reputation and

credibility among domestic and foreign customers.

The company's production plant covers an area of over 10,000 square meters, with an annual production

The group holds shares in more than ten domestic production entities, whose main products include

Over the past 30 years, the company has been gradually developing new technologies and materials to meet

the growing needs of customers and various diversified needs, exporting to more than 56 countries and still

increasing the number of exporting countries, aiming to help customers to solve the demand for raw materials, and to facilitate one-stop purchasing for customers.

Q: Are you trading company or manufacturer ?

A: manufacturer,also can do trading.

Q: How long is your delivery time?

A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples? 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<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.

If you have another question, pls feel free to contact with me.

Ετικέτες: