EN 10216-2 P235GH Seamless Steel Tube Supplier

Pressure Purposes – Elevated Temperature Service – TC1 & TC2 Quality

OD 6~204mm | WT 1~18mm | Cold Drawn

Product Overview

Our EN 10216-2 P235GH seamless non-alloy steel tubes are specifically designed for pressure purposes at elevated temperatures. Manufactured by the cold drawing process at our Wuxi facility, these tubes are suitable for boilers, superheaters, heat exchangers, and pressure piping systems operating at temperatures up to 400°C.

Quality Levels:

• TC1 – Standard quality level for general pressure applications

• TC2 – Higher quality level with Charpy impact testing (27J min at 0°C)

Key Specifications:

• Standard: EN 10216-2:2023

• Material: Non-alloy carbon steel (P235GH)

• Material Number: 1.0345

• Outer Diameter: 6mm – 204mm (Standard Stock: 19mm – 89mm)

• Wall Thickness: 1mm – 18mm

• Length: 4m – 12m (Custom lengths available)

• Manufacturing Process: Cold Drawn (Seamless)

• Heat Treatment: Normalized (≥845°C)

• Surface Finish: Black / Bare / Oiled

✅ EN 10216-2 certified – Compliant with PED 2014/68/EU – CE marking available
✅ Seamless cold drawn – No weld seam – pressure integrity assured
✅ Elevated temperature design – Creep strength data available up to 400°C
✅ TC2 quality – Charpy impact tested at 0°C (27J min)
✅ 100% NDT and hydrostatic tested – Guaranteed integrity
✅ EN 10204 Type 3.1 MTC provided with heat number
✅ Factory direct – Competitive pricing and fast delivery

Chemical Composition – P235GH

💡 Low phosphorus and sulfur ensures excellent toughness and weldability for pressure equipment service. Aluminum (≥0.020%) provides grain refinement for improved properties.

Mechanical Properties

TC1 vs TC2 – Quality Levels

💡 Choose TC2 when impact toughness is required – typically specified for low temperature start-up conditions or critical pressure equipment.

Manufacturing Process – Cold Drawing

Cold Drawing Process for Pressure Tubes:

1. Hot rolled tubes are pickled to remove scale

2. Cold drawing precisely reduces the diameter – increases strength

3. Annealing (normalizing) – ensures fine grain structure, restores ductility

4. Straightening – ensures straightness for installation

5. Precision cutting – to exact customer length

6. 100% NDT and hydrostatic testing – guarantees integrity

7. Charpy impact testing (TC2) – verifies low temperature toughness

Elevated Temperature Yield Strength (Rp0.2 MPa min)

💡 P235GH maintains good strength up to 400°C – above this temperature, use 16Mo3 or 13CrMo4-5 alloy grades.

Key Applications

💡 TC2 is recommended for critical applications requiring impact toughness at low temperature start-up conditions.

DIN 17175 Cross-Reference

💡 P235GH is the direct replacement for St35.8 – for legacy projects, we supply both standards.

Why Choose Our EN 10216-2 P235GH Tubes?

Contact for Quote

EN 10216-2 P235GH Seamless Steel Tube Supplier

Pressure Purposes – Elevated Temperature Service – TC1 & TC2 Quality

OD 6~204mm | WT 1~18mm | Cold Drawn

Product Overview

Our EN 10216-2 P235GH seamless non-alloy steel tubes are specifically designed for pressure purposes at elevated temperatures. Manufactured by the cold drawing process at our Wuxi facility, these tubes are suitable for boilers, superheaters, heat exchangers, and pressure piping systems operating at temperatures up to 400°C.

Quality Levels:

• TC1 – Standard quality level for general pressure applications

• TC2 – Higher quality level with Charpy impact testing (27J min at 0°C)

Key Specifications:

• Standard: EN 10216-2:2023

• Material: Non-alloy carbon steel (P235GH)

• Material Number: 1.0345

• Outer Diameter: 6mm – 204mm (Standard Stock: 19mm – 89mm)

• Wall Thickness: 1mm – 18mm

• Length: 4m – 12m (Custom lengths available)

• Manufacturing Process: Cold Drawn (Seamless)

• Heat Treatment: Normalized (≥845°C)

• Surface Finish: Black / Bare / Oiled

✅ EN 10216-2 certified – Compliant with PED 2014/68/EU – CE marking available
✅ Seamless cold drawn – No weld seam – pressure integrity assured
✅ Elevated temperature design – Creep strength data available up to 400°C
✅ TC2 quality – Charpy impact tested at 0°C (27J min)
✅ 100% NDT and hydrostatic tested – Guaranteed integrity
✅ EN 10204 Type 3.1 MTC provided with heat number
✅ Factory direct – Competitive pricing and fast delivery

Chemical Composition – P235GH

💡 Low phosphorus and sulfur ensures excellent toughness and weldability for pressure equipment service. Aluminum (≥0.020%) provides grain refinement for improved properties.

Mechanical Properties

TC1 vs TC2 – Quality Levels

💡 Choose TC2 when impact toughness is required – typically specified for low temperature start-up conditions or critical pressure equipment.

Manufacturing Process – Cold Drawing

Cold Drawing Process for Pressure Tubes:

1. Hot rolled tubes are pickled to remove scale

2. Cold drawing precisely reduces the diameter – increases strength

3. Annealing (normalizing) – ensures fine grain structure, restores ductility

4. Straightening – ensures straightness for installation

5. Precision cutting – to exact customer length

6. 100% NDT and hydrostatic testing – guarantees integrity

7. Charpy impact testing (TC2) – verifies low temperature toughness

Elevated Temperature Yield Strength (Rp0.2 MPa min)

💡 P235GH maintains good strength up to 400°C – above this temperature, use 16Mo3 or 13CrMo4-5 alloy grades.

Key Applications

💡 TC2 is recommended for critical applications requiring impact toughness at low temperature start-up conditions.

DIN 17175 Cross-Reference

💡 P235GH is the direct replacement for St35.8 – for legacy projects, we supply both standards.

Why Choose Our EN 10216-2 P235GH Tubes?

Contact for Quote

ASTM A334 Grade 6 & Grade 1 Seamless Low Temperature Tube Supplier

For Cryogenic & Low Temperature Service – OD 6~204mm | WT 1~18mm

Product Overview

Our ASTM A334 / ASME SA334 seamless low temperature tubes are manufactured in both Grade 6 and Grade 1 for service down to -45°C (-50°F). These tubes are designed for heat exchangers, condensers, and small-bore piping in cold climate, refrigeration, and petrochemical applications.

Key Specifications:

• Standard: ASTM A334 / ASME SA334

• Wall Type: Minimum wall thickness (no negative deviation)

• Grades: Grade 6 (Most popular – carbon steel, higher strength), Grade 1 (Standard carbon steel)

• Outer Diameter: 6mm – 204mm (Standard Stock: 19mm – 89mm)

• Wall Thickness: 1mm – 18mm

• Length: 3m – 12m (Custom lengths available)

• Manufacturing Process: Cold Drawn (Seamless)

• Tested: Charpy impact tested at -45°C

✅ ASME SA334 certified – Compliant with ASME Boiler & Pressure Vessel Code Section II
✅ Seamless cold drawn – No weld seam – eliminates brittle fracture risk at low temperature
✅ Charpy impact tested – Guaranteed toughness at -45°C – certified report provided
✅ Minimum wall thickness – No negative deviation – consistent tube integrity
✅ Grade 6 most economical – Best value for -45°C service
✅ 100% hydrostatic & NDT tested – Guaranteed integrity
✅ EN 10204 Type 3.1 MTC + Impact Report provided
✅ Factory direct – Competitive pricing and fast delivery

Grade Selection – Low Temperature Service

💡 Grade 6 is preferred for most applications – it offers higher strength (≥415 MPa tensile) compared to Grade 1 (≥380 MPa) at the same service temperature.

Chemical Composition

📌 Note for Grade 1: Each reduction of 0.01% carbon below 0.30% permits an increase of manganese of 0.05% above 1.06%, up to a maximum of 1.35%.

Mechanical Properties

Low Temperature Charpy Impact Requirements

💡 Charpy impact testing is mandatory for both Grade 1 and Grade 6 at -45°C – certified report provided with every shipment.

Manufacturing Process – Cold Drawing with Low Temperature Toughness

Cold Drawing Process for Low Temperature Service:

1. Hot rolled tubes are pickled to remove scale

2. Cold drawing precisely reduces the diameter

3. Heat treatment (normalizing or stress relieving) – ensures fine grain structure for low temperature toughness

4. Straightening – ensures dimensional consistency

5. Precision cutting – to exact length

6. 100% NDT and hydrostatic testing – guarantees integrity

7. Charpy impact testing at -45°C – verifies low temperature toughness

Grade Comparison – Grade 1 vs Grade 6

💡 Grade 6 offers 17% higher tensile strength than Grade 1 – preferred for most low temperature applications where higher strength is beneficial.

Key Applications – Low Temperature Service

💡 Grade 6 is the preferred choice for most low temperature heat exchanger applications due to its higher strength and widespread availability.

Why Choose Our ASTM A334 Low Temperature Tubes?

Contact for Quote

ASTM A192 Cold Drawn Seamless Carbon Steel Boiler Tube Supplier

High Pressure Service – OD 6~204mm | WT 1~18mm

Product Overview

Our ASTM A192 / ASME SA192 cold drawn seamless carbon steel boiler tubes are specifically designed for high pressure boiler service in power plants and industrial boilers. Manufactured by the cold drawing process at our Wuxi facility, these tubes offer higher strength than SA179 and are ideal for water wall tubes, economizers, and low temperature superheaters.

Key Specifications:

• Standard: ASTM A192 / ASME SA192

• Material: Carbon Steel (0.06-0.18% C)

• Outer Diameter: 6mm – 204mm (Standard Stock: 19mm – 89mm)

• Wall Thickness: 1mm – 18mm

• Length: 3m – 12m (Custom lengths available)

• Manufacturing Process: Cold Drawn (Seamless)

• Hardness: ≤77 HRB – slightly harder than SA179 for higher pressure service

✅ ASTM A192 certified – Compliant with ASME Boiler & Pressure Vessel Code Section II
✅ Seamless cold drawn – No weld seam – zero leak risk at high pressure
✅ Higher strength than SA179 – Designed for high pressure boiler service
✅ Up to 850°F (454°C) – Elevated temperature capability
✅ 100% hydrostatic & eddy current tested – Guaranteed integrity
✅ EN 10204 Type 3.1 MTC provided with heat number
✅ Factory direct – Competitive pricing and fast delivery

Chemical Composition

💡 Controlled carbon and manganese content ensures consistent mechanical properties and excellent weldability for boiler fabrication.

Mechanical Properties

Dimensional Tolerances – Cold Drawn

Manufacturing Process – Cold Drawing

Cold Drawing Process for Boiler Tubes:

1. Hot rolled tubes are pickled to remove scale

2. Cold drawing precisely reduces the diameter – increases strength

3. Annealing (normalizing) – restores ductility, ensures uniform microstructure

4. Straightening – ensures straightness for boiler installation

5. Precision cutting – to exact customer length requirements

6. 100% NDT and hydrostatic testing – guarantees integrity

ASME SA192 vs ASME SA179

💡 SA192 is designed for high pressure boiler service with heavier wall capability and larger diameters.

Key Applications

💡 SA192 covers the majority of subcritical boiler tube applications – water walls, economizers, and low temperature superheaters.

Why Choose Our ASTM A192 Boiler Tubes?

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DIN 17175 Seamless Heat-Resistant Steel Tube

For Boiler, Superheater, and High Temperature Service

Grades St35.8, St45.8, 15Mo3, 13CrMo44, 10CrMo910

German Standard – Withdrawn, Replaced by EN 10216-2 – Supplied for Legacy Projects

Product Overview

DIN 17175 is the German standard for seamless heat-resistant steel tubes intended for boilers, superheaters, heat exchangers, and high temperature pressure systems. These tubes offer excellent creep strength and oxidation resistance for elevated temperature service up to 600°C .

Key Characteristics:

Heat-Resistant Definition:
Steels that maintain good mechanical properties under long-term stress at high temperatures up to 600°C .

Steel Grades Covered:

• St35.8 – Carbon steel for general boiler service (EN 10216-2: P235GH)

• St45.8 – Carbon steel for higher strength boiler service (EN 10216-2: P265GH)

• 15Mo3 – Molybdenum alloy steel for medium temperature service (EN 10216-2: 16Mo3)

• 13CrMo44 – 1% Chrome-0.5% Molybdenum for high temperature service (EN 10216-2: 13CrMo4-5)

• 10CrMo910 – 2.25% Chrome-1% Molybdenum for advanced high temperature (EN 10216-2: 10CrMo9-10)

⚠️ Important Note: DIN 17175 has been withdrawn and replaced by EN 10216-2 . However, we continue to supply material to DIN 17175 specifications for legacy replacement, maintenance, and retrofit projects where the old standard is still specified .

✅ DIN 17175 compliant – Supplied to withdrawn standard for legacy projects
✅ Seamless construction – Safe for high pressure/temperature
✅ Heat-resistant grades – Good mechanical properties at high temperatures
✅ Full range of grades – St35.8, St45.8, 15Mo3, 13CrMo44, 10CrMo910
✅ Proper heat treatment – Normalized, subcritical annealed, or quenched and tempered
✅ 100% NDT tested – Ultrasonic or eddy current
✅ EN 10204 Type 3.1 MTC provided with full traceability
✅ Factory direct | Fast delivery

Key Specifications

📌 Heat treatment: Tubes shall be appropriately heat treated over their entire length. Depending on steel type, treatments include normalizing, subcritical annealing, quenching and tempering, or isothermal transformation hardening and tempering .

Steel Grade Cross-Reference

💡 For new projects, we recommend specifying EN 10216-2 equivalents .

Grade Selection Guide – Temperature & Application

Chemical Composition – DIN 17175 Grades

Mechanical Properties – DIN 17175 Grades

Elevated Temperature Capability

⚠️ 15Mo3 Limitation: This steel tends toward graphitization during long-term operation at high temperatures. Therefore, its operating temperature should be controlled below 510°C .

Available Sizes – DIN 17175 Tubes

💡 Most popular sizes: 114.3mm, 168.3mm, 219.1mm OD – 13CrMo44 .

Applications – DIN 17175 Tubes

Quality Assurance & Testing

Mill Test Certificate

• DIN 17175 Certificate of Compliance – Supplied to original standard

• EN 10204 Type 3.1 MTC – Provided with heat number

• EN 10204 Type 3.2 – Available upon request (third-party: SGS, BV, TUV)

• Heat treatment records – Normalizing temperatures and methods

• Mechanical test reports – Tensile, flattening results

• NDT reports – 100% UT results

• Traceability: Full traceability from melt to finished tube

Why Choose Our DIN 17175 Tubes?

Contact for Quote

Please provide the following details:

• Grade : St35.8 / St45.8 / 15Mo3 / 13CrMo44 / 10CrMo910

• OD (mm) : _______

• WT (mm) : _______

• Length (m) : _______

• Quantity : _______ (pieces / meters / tons)

• Application : Boiler / Superheater / Replacement / Other _______

• Service Temperature : _______ °C

• End Finish : Plain / Beveled

• Inspection : Standard / Third-party (SGS/BV/TUV)

ASME SA335 Seamless Chrome-Moly Alloy Steel Pipe

High Temperature Service – Grades P11, P22, P91, P92, P5, P9

Product Overview

ASME SA335 seamless ferritic alloy steel pipe for high temperature service in power plants, refineries, and petrochemical facilities. Chrome-Moly (Cr-Mo) alloy provides oxidation resistance and creep strength.

Most Popular Grades: P11 (1.25Cr-0.5Mo), P22 (2.25Cr-1Mo), P91 (9Cr-1Mo-V – supercritical)
Size: 1/2″ – 24″ | Schedules 10-160, XXS

✅ ASME SA335 / ASTM A335 – seamless chrome-moly alloy
✅ Chromium for oxidation resistance; Molybdenum for creep strength
✅ P91: ≥585 MPa tensile – advanced creep-resistant steel
✅ P22 standard for high pressure steam – most common
✅ P92: up to 620°C – ultra-supercritical grade
✅ 100% UT + hydrostatic tested
✅ EN 10204 3.1 MTC with heat number

Grade Selection – Chrome-Moly

Mechanical Properties – Key Grades

Common Stock Sizes – Power Plant P22/P91

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ASME SA333 Seamless and Welded Steel Pipe

Low Temperature Service – Grades 1, 3, 4, 6, 7, 8, 9, 10, 11

Product Overview

ASME SA333 seamless and welded (ERW) carbon and alloy steel pipe for low temperature and cryogenic service down to -195°C (-320°F) . Charpy impact tested. Full traceability.

ASME SA334 Seamless and Welded Carbon and Alloy Steel Tubes

Low Temperature Service – Grades 1, 3, 6, 7, 8, 9, 11

Product Overview

ASME SA334 seamless and welded carbon and alloy steel tubes for low temperature and cryogenic service down to -195°C (-320°F) – for heat exchangers, condensers, and instrumentation.

Manufacturing: Seamless or ERW welded – both fully accepted
Wall Thickness: Minimum wall (no negative deviation) – tighter tolerances than SA333
Grades: Grade 6 (-45°C), Grade 3 (-100°C), Grade 8 (-195°C – LNG)
OD: 1/8″ – 5″ (3.2-127mm) | Wall: 0.4-12.7mm

✅ ASME SA334 / ASTM A334 – seamless and welded tubes
✅ Minimum wall thickness – no negative deviation
✅ Charpy impact tested – report includes weld seam for welded tubes
✅ Flange test + reverse flattening test for welded tubes
✅ Grade 6 most economical – for -45°C service
✅ Grade 8 (9% Ni) – LNG cryogenic standard
✅ EN 10204 3.1 MTC + Impact Report

Grade Selection – Low Temperature Service

Common Stock Sizes – Heat Exchanger Tubes

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Carbon Steel Pipe – Seamless & Welded

OD 5-256mm | WT 0.8-25mm | Multiple Standards

Product Overview

Carbon steel pipe in seamless and welded (ERW) construction. OD from 5mm to 256mm, wall thickness from 0.8mm to 25mm. Suitable for fluid transport, structure, boiler, oil & gas, and general engineering.

✅ Seamless or ERW welded – both available
✅ Multiple standards – ASTM, API, EN, GB
✅ 100% hydrostatic tested
✅ EN 10204 3.1 MTC with heat number
✅ Factory direct | Global shipping

Key Specifications

Grade Selection

Most Popular Sizes

Applications

Fluid transport | Boiler systems | Oil & gas pipelines | Structural frames | Hydraulic cylinders | General engineering

Contact

Seamless Tube

OD 5mm – 256mm | WT 0.8mm – 25mm

Hot Rolled & Cold Drawn – Carbon & Alloy Steel

Product Overview

Our seamless tube is produced without any weld seam through hot rolling or cold drawing processes. This ensures uniform wall thickness, high pressure resistance, and excellent reliability. Outer diameters range from 5mm to 256mm with wall thicknesses from 0.8mm to 25mm.

✅ Seamless construction – no weld seam
✅ Hot rolled or cold drawn
✅ Carbon steel & alloy steel
✅ ASTM / API / EN / GB standards
✅ 100% hydrostatic tested
✅ EN 10204 3.1 MTC with heat number
✅ Factory direct | Global shipping

Key Specifications

Grade Selection

Key Benefits

Applications

• Power plant boilers and steam lines

• Oil and gas transmission pipelines

• Petrochemical processing

• Hydraulic cylinder barrels

• Heat exchangers and condensers

• Structural and mechanical components

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Steel Pipe – Seamless & Welded

OD 5-256mm | WT 0.8-25mm | Carbon & Alloy Steel

Product Overview

Steel pipe in seamless and welded (ERW) construction. Available in carbon steel and alloy steel (Cr-Mo). OD from 5mm to 256mm, wall thickness from 0.8mm to 25mm.

✅ Seamless or ERW welded – both available
✅ Carbon steel & alloy steel
✅ Multiple standards – ASTM, API, EN, GB
✅ 100% hydrostatic tested
✅ EN 10204 3.1 MTC with heat number
✅ Factory direct | Global shipping

Key Specifications

Quick Grade Selection

Most Popular Sizes

Applications

Oil & gas pipelines | Power plant boilers | Petrochemical process piping | Hydraulic cylinders | Construction structures | Low temperature services

Contact

ASME SA179 Cold Drawn Seamless Carbon Steel Tube