Name: EN 10297-1 Seamless Circular Steel Tubes For Mechanical And General
Brand: TORICH INTERNATIONAL LIMITED
SKU: Pour les appareils électroniques
Price: 900.00 USD
Availability: InStock

Quantité De Produit:	1 tonnes
Prix:	800-1000 USD/Tons
Emballage Standard:	En paquets ou dans des caisses en bois.
Période De Livraison:	20-30 jours sur les produits
Méthode De Paiement:	LC, D/A, D/P, T/T, Western Union, MoneyGram
Capacité D'approvisionnement:	60 000 tonnes/tonnes par an

L'information de détails

Description du produit

Informations détaillées

Lieu d'origine

Zhejiang/Chine

Nom de marque

TORICH

Certification

ISO9001, ISO14001, TS16949

Numéro de modèle

Pour les appareils électroniques

Technique:

Cold tiré, roulé à chaud, à froid roulé

Application:

Mécanique et général

Standard:

ASTM, GB, DIN, API, BS

Alliage ou pas:

Non-allié

Épaisseur:

0,5 - 20 mm

Forme de la section:

Rond, rectangulaire / carré / rond

Grade:

E235 (1.0308) E275 (1.0225) E355 (1.0580) 25CrMo4 42CrMo4

Pipe spéciale:

Tuyau à paroi épaisse, tuyau sans soudure de précision, tube en acier sans soudure de précision, éti

Secondaire ou non:

Non secondaire

Diamètre extérieur (rond):

20 à 480 mm

Longueur:

1-12m/comme demandes des clients

Nom du produit:

tuyaux en acier sans soudure

Taper:

Sans couture, laminé à chaud

Description du produit

EN 10297-1 Seamless Circular Steel Tubes For Mechanical And General 0

EN 10297-1 Seamless Circular Steel Tubes for Mechanical & General Engineering

Material Overview

EN 10297-1 covers seamless circular steel tubes manufactured from non-alloy and alloy steels for mechanical engineering and general engineering components where reliable strength, machinability, and dimensional stability are required. Typical supply routes include hot-finished and cold-finished tubes, with heat treatment options (e.g., normalized) selected to match forming, welding, and final-part performance expectations.

Specifications

Product form: Seamless round tube (circular)
Manufacturing: Hot-finished / cold-finished (per order)
Delivery condition (common): As-rolled / annealed / normalized / quenched & tempered (grade- and requirement-dependent)
Dimensional tolerances (typical reference per EN 10297-1 practice):

Outside diameter tolerances commonly ±1% (and for small OD, often ±0.5 mm)
Wall thickness tolerances depend on T/D ratio, with typical bands such as ±12.5% to ±20% depending on size relationships

Optional testing & documentation (often requested by buyers):

EN 10204 3.1 material inspection certificate (MTC)
Dimensional inspection report
NDT (UT/ET) by agreement
Mechanical testing (tensile, impact where applicable)

Key Features

Seamless integrity for higher reliability versus welded tubing in critical load paths
Grade flexibility (from E-series structural/mechanical grades to Cr-Mo alloy grades) for cost/performance optimization
Good manufacturability: suitable for machining, drilling, boring, and controlled forming depending on grade & condition
Engineering-ready traceability with heat number / batch identification and MTC alignment

Our Advantages

“Will the tube meet my machining and strength targets without surprises?”
We recommend the grade + delivery condition combination based on your use case (machining vs. forming vs. high-strength shafts). Minimum mechanical property requirements are aligned to EN 10297-1 grade tables (example values shown below), reducing rework risk.
“Can you control OD/WT tolerances for assembly-fit components?”
We manage production routing (hot-finished vs. cold-finished) and apply tolerance controls consistent with EN 10297-1 dimensional tolerance guidance (OD and WT tolerance bands linked to diameter and T/D ratio).
“How do I ensure compliance, traceability, and incoming inspection efficiency?”
We support batch traceability, provide EN 10204 3.1 MTCs, and can add NDT and extra testing (UT/ET, impact tests when required) so your incoming QC can verify compliance quickly and consistently.

Chemical Composition

Grade	C (%)	Si (%)	Mn (%)	P (%)	S (%)	Cr (%)	Mo (%)
E235 (1.0308)	≤0.17	≤0.35	≤1.20	≤0.030	≤0.035	—	—
E275 (1.0225)	≤0.21	≤0.35	≤1.40	≤0.030	≤0.035	—	—
E355 (1.0580)	≤0.22	≤0.55	≤1.60	≤0.030	≤0.035	—	—
25CrMo4	0.22–0.29	≤0.40	0.60–0.90	≤0.035	≤0.035	0.90–1.20	0.15–0.30
42CrMo4	0.38–0.45	≤0.40	0.60–0.90	≤0.035	≤0.035	0.90–1.20	0.15–0.30

Mechanical Properties

Grade	Reference thickness category	Yield Strength ReH (MPa) min	Tensile Strength Rm (MPa) min	Elongation A (%) min
E235	T ≤ 16 mm	235	360	25
E275	T ≤ 16 mm	275	410	22
E355	T ≤ 16 mm	355	490	20
25CrMo4	T ≤ 8 mm	700	900	12
42CrMo4	T ≤ 8 mm	900	1100	10

Execution Standards

EN: EN 10297-1
ASTM (similar use-case): ASTM A519
JIS (similar use-case): JIS G3441
GOST (similar product family): GOST 8732
GB (similar structural/mechanical usage): GB/T 8162

Application Areas

General application domains: mechanical engineering, automotive components, construction machinery, industrial equipment, structural/mechanical assemblies.

Where used (examples):

E235 / E275: brackets, sleeves, frames, general machined parts, moderate-load shafts
E355: higher-load structural parts, machine frames, hydraulic and mechanical assemblies requiring higher strength
25CrMo4 / 42CrMo4: high-stress shafts, pins, drive components, crane/boom and heavy equipment parts where higher hardenability/strength is needed

EN 10297-1 Seamless Circular Steel Tubes For Mechanical And General 1

EN 10297-1 Seamless Circular Steel Tubes For Mechanical And General 2

EN 10297-1 Seamless Circular Steel Tubes For Mechanical And General 4

EN 10297-1 Seamless Circular Steel Tubes For Mechanical And General 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.

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EN 10297-1 Seamless Circular Steel Tubes For Mechanical And General

Quantité De Produit:	1 tonnes
Prix:	800-1000 USD/Tons
Emballage Standard:	En paquets ou dans des caisses en bois.
Période De Livraison:	20-30 jours sur les produits
Méthode De Paiement:	LC, D/A, D/P, T/T, Western Union, MoneyGram
Capacité D'approvisionnement:	60 000 tonnes/tonnes par an

Informations détaillées

Description du produit

Informations détaillées

Lieu d'origine

Zhejiang/Chine

Nom de marque

TORICH

Certification

ISO9001, ISO14001, TS16949

Numéro de modèle

Pour les appareils électroniques

Technique:

Cold tiré, roulé à chaud, à froid roulé

Application:

Mécanique et général

Standard:

ASTM, GB, DIN, API, BS

Alliage ou pas:

Non-allié

Épaisseur:

0,5 - 20 mm

Forme de la section:

Rond, rectangulaire / carré / rond

Grade:

E235 (1.0308) E275 (1.0225) E355 (1.0580) 25CrMo4 42CrMo4

Pipe spéciale:

Tuyau à paroi épaisse, tuyau sans soudure de précision, tube en acier sans soudure de précision, éti

Secondaire ou non:

Non secondaire

Diamètre extérieur (rond):

20 à 480 mm

Longueur:

1-12m/comme demandes des clients

Nom du produit:

tuyaux en acier sans soudure

Taper:

Sans couture, laminé à chaud

Quantité de commande min:

1 tonnes

Prix:

800-1000 USD/Tons

Détails d'emballage:

En paquets ou dans des caisses en bois.

Délai de livraison:

20-30 jours sur les produits

Conditions de paiement:

LC, D/A, D/P, T/T, Western Union, MoneyGram

Capacité d'approvisionnement:

60 000 tonnes/tonnes par an

Description du produit

EN 10297-1 Seamless Circular Steel Tubes For Mechanical And General 0

EN 10297-1 Seamless Circular Steel Tubes for Mechanical & General Engineering

Material Overview

Specifications

Outside diameter tolerances commonly ±1% (and for small OD, often ±0.5 mm)
Wall thickness tolerances depend on T/D ratio, with typical bands such as ±12.5% to ±20% depending on size relationships

Optional testing & documentation (often requested by buyers):

EN 10204 3.1 material inspection certificate (MTC)
Dimensional inspection report
NDT (UT/ET) by agreement
Mechanical testing (tensile, impact where applicable)

Key Features

Seamless integrity for higher reliability versus welded tubing in critical load paths
Grade flexibility (from E-series structural/mechanical grades to Cr-Mo alloy grades) for cost/performance optimization
Good manufacturability: suitable for machining, drilling, boring, and controlled forming depending on grade & condition
Engineering-ready traceability with heat number / batch identification and MTC alignment

Our Advantages

“Will the tube meet my machining and strength targets without surprises?”
We recommend the grade + delivery condition combination based on your use case (machining vs. forming vs. high-strength shafts). Minimum mechanical property requirements are aligned to EN 10297-1 grade tables (example values shown below), reducing rework risk.
“Can you control OD/WT tolerances for assembly-fit components?”
We manage production routing (hot-finished vs. cold-finished) and apply tolerance controls consistent with EN 10297-1 dimensional tolerance guidance (OD and WT tolerance bands linked to diameter and T/D ratio).
“How do I ensure compliance, traceability, and incoming inspection efficiency?”
We support batch traceability, provide EN 10204 3.1 MTCs, and can add NDT and extra testing (UT/ET, impact tests when required) so your incoming QC can verify compliance quickly and consistently.

Chemical Composition

Grade	C (%)	Si (%)	Mn (%)	P (%)	S (%)	Cr (%)	Mo (%)
E235 (1.0308)	≤0.17	≤0.35	≤1.20	≤0.030	≤0.035	—	—
E275 (1.0225)	≤0.21	≤0.35	≤1.40	≤0.030	≤0.035	—	—
E355 (1.0580)	≤0.22	≤0.55	≤1.60	≤0.030	≤0.035	—	—
25CrMo4	0.22–0.29	≤0.40	0.60–0.90	≤0.035	≤0.035	0.90–1.20	0.15–0.30
42CrMo4	0.38–0.45	≤0.40	0.60–0.90	≤0.035	≤0.035	0.90–1.20	0.15–0.30

Mechanical Properties

Grade	Reference thickness category	Yield Strength ReH (MPa) min	Tensile Strength Rm (MPa) min	Elongation A (%) min
E235	T ≤ 16 mm	235	360	25
E275	T ≤ 16 mm	275	410	22
E355	T ≤ 16 mm	355	490	20
25CrMo4	T ≤ 8 mm	700	900	12
42CrMo4	T ≤ 8 mm	900	1100	10

Execution Standards

EN: EN 10297-1
ASTM (similar use-case): ASTM A519
JIS (similar use-case): JIS G3441
GOST (similar product family): GOST 8732
GB (similar structural/mechanical usage): GB/T 8162

Application Areas

General application domains: mechanical engineering, automotive components, construction machinery, industrial equipment, structural/mechanical assemblies.

Where used (examples):

E235 / E275: brackets, sleeves, frames, general machined parts, moderate-load shafts
E355: higher-load structural parts, machine frames, hydraulic and mechanical assemblies requiring higher strength
25CrMo4 / 42CrMo4: high-stress shafts, pins, drive components, crane/boom and heavy equipment parts where higher hardenability/strength is needed

EN 10297-1 Seamless Circular Steel Tubes For Mechanical And General 1

EN 10297-1 Seamless Circular Steel Tubes For Mechanical And General 2

EN 10297-1 Seamless Circular Steel Tubes For Mechanical And General 4

EN 10297-1 Seamless Circular Steel Tubes For Mechanical And General 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.

Les étiquettes: