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GB/T 17396 Hot Rolled Seamless Steel Tubes For Hydraulic Pillar

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GB/T 17396 Hot Rolled Seamless Steel Tubes For Hydraulic Pillar

MOQ:	1 Tons
Price:	800-1000 USD/Tons
Standard Packaging:	In bundles or in wooden boxes.
Delivery Period:	20-30days upon products
Payment Method:	L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Capacity:	60000 Ton/Tons per Year

Details Information

Product Description

Detail Information

Place of Origin

Zhejiang/China

Brand Name

TORICH

Certification

ISO9001, ISO14001, TS16949

Model Number

GB/T 17396

Technique:

Cold Drawn,Hot Rolled

Application:

Hydraulic Pillar

Standard:

ASTM,GB,DIN,API,BS

Alloy Or Not:

Non-alloy,Is Alloy

Thickness:

2 - 120 Mm

Section Shape:

Rectangular/ Square/ Round

Surface Treatment:

Customerized

Grade:

20#,45#

Special Pipe:

Precision Seamless Pipe,precision Seamless Steel Tube,cold Drawn

Secondary Or Not:

Non-secondary

Outer Diameter(round):

17 - 660 Mm

Length:

1-12m/as Customers' Requests

Shape:

Round/Square/Rectangular

Product Description

GB/T 17396 Hot Rolled Seamless Steel Tubes For Hydraulic Pillar 0

GB/T 17396 Hot-Rolled Seamless Steel Tubes for Hydraulic Pillar Service

GB/T 17396-2022 is the current Chinese national standard for seamless hot-rolled steel tubes used in hydraulic pillar service, issued for tubes used in cylinders and pillars of coal-mine hydraulic support equipment. The standard replaced GB/T 17396-2009 and has been implemented since May 1, 2023.

Specifications

Item	Specification
Material	Hot-rolled seamless carbon steel and alloy steel tube
Standard	GB/T 17396-2022
Grades	35, 45, 27SiMn, 27SiMnRE, 30CrMnSi, 30CrMo, 30MnNbRE
Outside Diameter	Nominal OD according to GB/T 17395; other OD sizes may be supplied by agreement
Wall Thickness	Nominal wall thickness according to GB/T 17395; other wall thicknesses may be supplied by agreement
Length	Standard usual length: 3,000-12,000 mm; custom fixed or multiple lengths can be agreed, including 1-12 m project lengths
Tolerance Range	OD: ±0.75%D. WT: ±10%S for S≤20 mm; for S>20-35 mm, common grade ±10%S and higher grade ±9%S; for S>35 mm, common grade ±10%S and higher grade ±8%S
Straightness	S≤15 mm: ≤1.3 mm/m; 15<S≤30 mm: ≤1.5 mm/m; S>30 mm: ≤2.0 mm/m; full-length bend ≤0.10% of tube length
Surface Condition	Internal and external surfaces shall be free from cracks, folds, scabs, delamination and other defects harmful to use; defect removal is allowed only when the remaining actual dimension stays within the minimum allowable OD and wall thickness limits
Heat Treatment	Standard delivery is hot-rolled. Annealed or quenched-and-tempered delivery can be agreed. Alloy-grade test samples are heat-treated according to the grade-specific requirements in GB/T 17396-2022

D = nominal outside diameter; S = nominal wall thickness.

Main Characteristics

Controlled dimensional accuracy for hydraulic barrels: OD tolerance is ±0.75%D, while wall-thickness tolerance can be specified as common grade or higher grade depending on wall thickness.
Defined straightness for machining stability: straightness is limited to 1.3 mm/m, 1.5 mm/m or 2.0 mm/m depending on wall thickness, with full-length bend limited to 0.10% of tube length.
Strength range suitable for hydraulic pillar loading: listed grades cover tensile strength from 510 MPa for Grade 35 up to 1,080 MPa for 30CrMnSi.
Impact-tested alloy options: 27SiMn, 30CrMnSi, 30CrMo and 30MnNbRE have specified Charpy V-notch absorbed energy requirements from 39 J to 71 J, depending on grade.
Non-destructive inspection can be specified: ultrasonic testing level U3, eddy-current testing level E3H or E3, and magnetic-flux leakage testing level F3 are referenced for tube inspection.

Our Advantages

Grade compliance and traceability for purchasing teams
Professional buyers often need confirmation that the material follows the current GB/T 17396-2022 standard rather than the older 2009 edition. We align the quotation with the required standard number, product name, steel grade, quantity, dimensions, delivery condition and special requirements, then provide heat-number traceability with chemical and mechanical test records.
Dimensional control for cylinder-barrel machining
Hydraulic cylinder tube buyers focus on tight allowance, internal surface condition, wall-thickness consistency and straightness because these affect machining allowance, seal contact and service life. We quote OD, wall thickness, straightness, out-of-roundness and wall-thickness unevenness according to GB/T 17396-2022; ID machining, honing or SRB finishing can be supplied as downstream processing when the drawing requires a finished cylinder bore.
Risk control before shipment
Hidden defects such as cracks, folds, inclusions and internal discontinuities are critical for hydraulic pillar tubes. We support visual inspection, chemical analysis, tensile testing, hardness testing where applicable, impact testing for alloy grades, inclusion rating and optional NDT by ultrasonic, eddy-current or magnetic-flux leakage methods according to the referenced GB/T inspection standards.

Execution Standards

Region	Applicable Standard	Short Description
GB	GB/T 17396-2022	Seamless hot-rolled steel tubes for hydraulic pillar service
ASTM	ASTM A519/A519M	Seamless carbon and alloy steel mechanical tubing, hot-finished or cold-finished
EN	EN 10297-1 / EN 10305-1	EN 10297-1 for seamless circular tubes for mechanical engineering; EN 10305-1 for seamless cold-drawn precision tubes
GOST	GOST 8732 / GOST 8731	Seamless hot-deformed steel pipes by OD, wall thickness and length; technical requirements to be confirmed by material group
JIS	JIS G 3445	Carbon steel tubes for machine structural purposes

These standards are not automatically interchangeable; grade equivalence, chemistry, mechanical properties and inspection scope should be confirmed against the purchase drawing.

Application Field

Coal mine hydraulic roof support cylinder barrel.

Chemical Composition

Grade	C	Si	Mn	Cr	Ni	Mo	Cu	Nb	RE	P	S
35	0.32-0.39	0.17-0.37	0.50-0.80	≤0.25	≤0.25	—	≤0.20	—	—	≤0.025	≤0.015
45	0.42-0.50	0.17-0.37	0.50-0.80	≤0.25	≤0.25	—	≤0.20	—	—	≤0.025	≤0.015
27SiMn	0.24-0.32	1.10-1.40	1.10-1.40	≤0.30	≤0.30	≤0.10	≤0.20	—	—	≤0.025	≤0.015
30CrMnSi	0.28-0.34	0.90-1.20	0.80-1.10	0.80-1.10	≤0.30	≤0.10	≤0.20	—	—	≤0.025	≤0.015
30MnNbRE	0.27-0.36	0.20-0.60	1.20-1.60	≤0.30	≤0.30	≤0.10	≤0.20	0.020-0.050	0.008-0.025	≤0.025	≤0.015

Mechanical Properties

Grade	Sample Heat Treatment	Tensile Strength Rm, MPa	Yield / Proof Strength, MPa	Elongation A, %	Impact KV2, J	HBW Max, Annealed Condition
35	Delivery condition	≥510	≥305 for S≤16 mm; ≥295 for 16<S≤30 mm; ≥285 for S>30 mm	≥17	—	—
45	Delivery condition	≥590	≥335 for S≤16 mm; ≥325 for 16<S≤30 mm; ≥315 for S>30 mm	≥14	—	—
27SiMn	Quench 920±15°C, water; temper 450±50°C, water or oil	≥980	≥835	≥12	≥39	≤217
30CrMnSi	Quench 880±15°C, oil; temper 540±50°C, water or oil	≥1,080	≥835	≥10	≥39	≤229
30MnNbRE	Quench 880±15°C, water; temper 450±50°C, air	≥850	≥720	≥13	≥48	—

GB/T 17396 Hot Rolled Seamless Steel Tubes For Hydraulic Pillar 1

GB/T 17396 Hot Rolled Seamless Steel Tubes For Hydraulic Pillar 2

GB/T 17396 Hot Rolled Seamless Steel Tubes For Hydraulic Pillar 4

GB/T 17396 Hot Rolled Seamless Steel Tubes For Hydraulic Pillar 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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GB/T 17396 Hot Rolled Seamless Steel Tubes For Hydraulic Pillar

MOQ:	1 Tons
Price:	800-1000 USD/Tons
Standard Packaging:	In bundles or in wooden boxes.
Delivery Period:	20-30days upon products
Payment Method:	L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Capacity:	60000 Ton/Tons per Year

Detail Information

Product Description

Detail Information

Place of Origin

Zhejiang/China

Brand Name

TORICH

Certification

ISO9001, ISO14001, TS16949

Model Number

GB/T 17396

Technique:

Cold Drawn,Hot Rolled

Application:

Hydraulic Pillar

Standard:

ASTM,GB,DIN,API,BS

Alloy Or Not:

Non-alloy,Is Alloy

Thickness:

2 - 120 Mm

Section Shape:

Rectangular/ Square/ Round

Surface Treatment:

Customerized

Grade:

20#,45#

Special Pipe:

Precision Seamless Pipe,precision Seamless Steel Tube,cold Drawn

Secondary Or Not:

Non-secondary

Outer Diameter(round):

17 - 660 Mm

Length:

1-12m/as Customers' Requests

Shape:

Round/Square/Rectangular

Minimum Order Quantity:

1 Tons

Price:

800-1000 USD/Tons

Packaging Details:

In bundles or in wooden boxes.

Delivery Time:

20-30days upon products

Payment Terms:

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

Supply Ability:

60000 Ton/Tons per Year

Product Description

GB/T 17396 Hot Rolled Seamless Steel Tubes For Hydraulic Pillar 0

GB/T 17396 Hot-Rolled Seamless Steel Tubes for Hydraulic Pillar Service

Specifications

Item	Specification
Material	Hot-rolled seamless carbon steel and alloy steel tube
Standard	GB/T 17396-2022
Grades	35, 45, 27SiMn, 27SiMnRE, 30CrMnSi, 30CrMo, 30MnNbRE
Outside Diameter	Nominal OD according to GB/T 17395; other OD sizes may be supplied by agreement
Wall Thickness	Nominal wall thickness according to GB/T 17395; other wall thicknesses may be supplied by agreement
Length	Standard usual length: 3,000-12,000 mm; custom fixed or multiple lengths can be agreed, including 1-12 m project lengths
Tolerance Range	OD: ±0.75%D. WT: ±10%S for S≤20 mm; for S>20-35 mm, common grade ±10%S and higher grade ±9%S; for S>35 mm, common grade ±10%S and higher grade ±8%S
Straightness	S≤15 mm: ≤1.3 mm/m; 15<S≤30 mm: ≤1.5 mm/m; S>30 mm: ≤2.0 mm/m; full-length bend ≤0.10% of tube length
Surface Condition	Internal and external surfaces shall be free from cracks, folds, scabs, delamination and other defects harmful to use; defect removal is allowed only when the remaining actual dimension stays within the minimum allowable OD and wall thickness limits
Heat Treatment	Standard delivery is hot-rolled. Annealed or quenched-and-tempered delivery can be agreed. Alloy-grade test samples are heat-treated according to the grade-specific requirements in GB/T 17396-2022

D = nominal outside diameter; S = nominal wall thickness.

Main Characteristics

Controlled dimensional accuracy for hydraulic barrels: OD tolerance is ±0.75%D, while wall-thickness tolerance can be specified as common grade or higher grade depending on wall thickness.
Defined straightness for machining stability: straightness is limited to 1.3 mm/m, 1.5 mm/m or 2.0 mm/m depending on wall thickness, with full-length bend limited to 0.10% of tube length.
Strength range suitable for hydraulic pillar loading: listed grades cover tensile strength from 510 MPa for Grade 35 up to 1,080 MPa for 30CrMnSi.
Impact-tested alloy options: 27SiMn, 30CrMnSi, 30CrMo and 30MnNbRE have specified Charpy V-notch absorbed energy requirements from 39 J to 71 J, depending on grade.
Non-destructive inspection can be specified: ultrasonic testing level U3, eddy-current testing level E3H or E3, and magnetic-flux leakage testing level F3 are referenced for tube inspection.

Our Advantages

Grade compliance and traceability for purchasing teams
Professional buyers often need confirmation that the material follows the current GB/T 17396-2022 standard rather than the older 2009 edition. We align the quotation with the required standard number, product name, steel grade, quantity, dimensions, delivery condition and special requirements, then provide heat-number traceability with chemical and mechanical test records.
Dimensional control for cylinder-barrel machining
Hydraulic cylinder tube buyers focus on tight allowance, internal surface condition, wall-thickness consistency and straightness because these affect machining allowance, seal contact and service life. We quote OD, wall thickness, straightness, out-of-roundness and wall-thickness unevenness according to GB/T 17396-2022; ID machining, honing or SRB finishing can be supplied as downstream processing when the drawing requires a finished cylinder bore.
Risk control before shipment
Hidden defects such as cracks, folds, inclusions and internal discontinuities are critical for hydraulic pillar tubes. We support visual inspection, chemical analysis, tensile testing, hardness testing where applicable, impact testing for alloy grades, inclusion rating and optional NDT by ultrasonic, eddy-current or magnetic-flux leakage methods according to the referenced GB/T inspection standards.

Execution Standards

Region	Applicable Standard	Short Description
GB	GB/T 17396-2022	Seamless hot-rolled steel tubes for hydraulic pillar service
ASTM	ASTM A519/A519M	Seamless carbon and alloy steel mechanical tubing, hot-finished or cold-finished
EN	EN 10297-1 / EN 10305-1	EN 10297-1 for seamless circular tubes for mechanical engineering; EN 10305-1 for seamless cold-drawn precision tubes
GOST	GOST 8732 / GOST 8731	Seamless hot-deformed steel pipes by OD, wall thickness and length; technical requirements to be confirmed by material group
JIS	JIS G 3445	Carbon steel tubes for machine structural purposes

These standards are not automatically interchangeable; grade equivalence, chemistry, mechanical properties and inspection scope should be confirmed against the purchase drawing.

Application Field

Coal mine hydraulic roof support cylinder barrel.

Chemical Composition

Grade	C	Si	Mn	Cr	Ni	Mo	Cu	Nb	RE	P	S
35	0.32-0.39	0.17-0.37	0.50-0.80	≤0.25	≤0.25	—	≤0.20	—	—	≤0.025	≤0.015
45	0.42-0.50	0.17-0.37	0.50-0.80	≤0.25	≤0.25	—	≤0.20	—	—	≤0.025	≤0.015
27SiMn	0.24-0.32	1.10-1.40	1.10-1.40	≤0.30	≤0.30	≤0.10	≤0.20	—	—	≤0.025	≤0.015
30CrMnSi	0.28-0.34	0.90-1.20	0.80-1.10	0.80-1.10	≤0.30	≤0.10	≤0.20	—	—	≤0.025	≤0.015
30MnNbRE	0.27-0.36	0.20-0.60	1.20-1.60	≤0.30	≤0.30	≤0.10	≤0.20	0.020-0.050	0.008-0.025	≤0.025	≤0.015

Mechanical Properties

Grade	Sample Heat Treatment	Tensile Strength Rm, MPa	Yield / Proof Strength, MPa	Elongation A, %	Impact KV2, J	HBW Max, Annealed Condition
35	Delivery condition	≥510	≥305 for S≤16 mm; ≥295 for 16<S≤30 mm; ≥285 for S>30 mm	≥17	—	—
45	Delivery condition	≥590	≥335 for S≤16 mm; ≥325 for 16<S≤30 mm; ≥315 for S>30 mm	≥14	—	—
27SiMn	Quench 920±15°C, water; temper 450±50°C, water or oil	≥980	≥835	≥12	≥39	≤217
30CrMnSi	Quench 880±15°C, oil; temper 540±50°C, water or oil	≥1,080	≥835	≥10	≥39	≤229
30MnNbRE	Quench 880±15°C, water; temper 450±50°C, air	≥850	≥720	≥13	≥48	—

GB/T 17396 Hot Rolled Seamless Steel Tubes For Hydraulic Pillar 1

GB/T 17396 Hot Rolled Seamless Steel Tubes For Hydraulic Pillar 2

GB/T 17396 Hot Rolled Seamless Steel Tubes For Hydraulic Pillar 4

GB/T 17396 Hot Rolled Seamless Steel Tubes For Hydraulic Pillar 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.

Tags: