Table of Contents
- Introduction
- Chemical Composition
- Mechanical Properties
- Physical & Thermal Properties
- Equivalent Grades
- Tubes Details
- Manufacturing Process
- Sizes & Dimensions
- Weight Chart
- Pressure Rating
- Types Available
- Applications
- Industries Served
- Grade Comparison
- Why BB Infras?
- Certifications & QC
- Export & Packaging
- Tubes Marking
- Coating Options
- Testing Procedure
- Storage Guidelines
- Downloads
- Cities We Supply
- Countries We Export
- FAQ
- People Also Ask
- Related Products
| Material | High-Strength Structural Steel |
| Grade | S355JR / EN 10025-2 S355JR / DIN 1.0045 |
| Standard | EN 10025-2 S355JR / DIN 1.0045 |
| Pipe Type | Welded |
| Size Range | Plates 5–200 mm; sections, angles, beams |
| Schedule | SCH 10 – XXS (per ASME B36.10M) |
| Length | SRL (3–5 m) / DRL (6–12 m) / Cut-to-length |
| End Finish | Plain End (PE) / Bevel End (BE) / Threaded (TE) |
| Tensile Strength | 470–630 MPa |
| Yield Strength | 355 MPa (t ≤ 16 mm) |
| MTC | EN 10204 3.1 Mill Test Certificate |
| MOQ | 100 kg (standard sizes) |
Quick Answers
S355JR Tubes – Overview
S355JR is Europe's high-strength structural steel with 355 MPa minimum yield and guaranteed 27 J Charpy impact at +20 °C. Widely used where S235/A36 is insufficient — offshore platforms, heavy fabrications and mobile cranes.
BB Infras sources S355JR Tubes from approved European, Japanese and domestic mills for heavy engineering fabricators, shipbuilders and infrastructure contractors, with full EN/ASTM mill certification and dimensional compliance reports. We supply S355JR Tubes in schedules SCH 10 through XXS, in lengths from 3 m single random to 6 m double random, with plain end, bevel end or threaded end as required. PE/BE/TE pipes are stocked for same-day dispatch.
Need a quote for S355JR Tubes?
Our sales team responds within 2 business hours with price & availability.
Request Quote WhatsAppChemical Composition of S355JR
The following table shows the chemical composition per EN 10025-2 S355JR / DIN 1.0045.
| C | Mn | Si | P | S | N | CEQ |
|---|---|---|---|---|---|---|
| ≤ 0.24 | ≤ 1.60 | ≤ 0.55 | ≤ 0.040 | ≤ 0.040 | ≤ 0.012 | ≤ 0.45 |
Mechanical Properties of S355JR
| Property | Value |
|---|---|
| Tensile Strength | 470–630 MPa |
| Yield Strength | 355 MPa (t ≤ 16 mm) |
| Elongation | 22% min |
| Charpy (+20 °C) | 27 J min |
Physical & Thermal Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | 1420–1525 °C |
| Thermal Conductivity | 44 W/m·K |
| Thermal Expansion | 12.0 × 10⁻⁶ /°C |
| Elastic Modulus | 200 GPa |
| Specific Heat | 460 J/kg·K |
| Electrical Resistivity | 0.170 μΩ·m |
Equivalent Grades of S355JR
| Standard Body | Equivalent Grade |
|---|---|
| EN | S355JR / 1.0045 |
| ASTM | A572 Gr.50 |
| IS | E350 |
| JIS | SM490A |
| BS | 50B |
Tubes – Product Details
Applicable Standards: ASTM A179, ASTM A214, ASTM A519, EN 10305, DIN 2391
Manufacturing Process: Cold-drawn or cold-rolled from hot-finished seamless or welded mother tube; annealed or normalised to achieve close tolerances.
Heat Treatment: As-rolled or normalised. PWHT 580–620 °C for weld stress relief.
S355JR Tubes – Manufacturing Process
Tubes is produced using a controlled sequence of operations to achieve the dimensional and mechanical requirements of EN 10025-2 S355JR / DIN 1.0045.
1200–1280 °C
Mannesmann
Plug / Mandrel Mill
As-rolled / Normalised
Per standard
S355JR Tubes – Sizes & Dimensions
Size range: Plates 5–200 mm; sections, angles, beams. The following dimensional data covers standard sizes. Non-standard sizes available on request.
| OD (mm) | WT (mm) | Tolerance OD | Tolerance WT |
|---|---|---|---|
| 12 | 1.0–3.0 | ±0.15 mm | ±10% |
| 25 | 1.5–4.0 | ±0.15 mm | ±10% |
| 50 | 2.0–6.0 | ±0.20 mm | ±10% |
| 76 | 2.5–8.0 | ±0.25 mm | ±10% |
| 114 | 3.0–10 | ±0.40 mm | ±10% |
| 168 | 4.0–12 | ±0.50 mm | ±10% |
S355JR Tubes – Weight Chart
Weight per metre (kg/m) for common sizes and schedules. Formula: W = 0.02466 × t × (OD − t) where t = wall thickness (mm), OD = outside diameter (mm).
| NPS | OD (mm) | SCH 40 WT (mm) | SCH 40 kg/m |
SCH 80 WT (mm) | SCH 80 kg/m |
SCH 160 WT (mm) | SCH 160 kg/m |
|---|---|---|---|---|---|---|---|
| ½" | 21.3 | 2.77 | 1.27 | 3.73 | 1.62 | 4.78 | 1.95 |
| ¾" | 26.7 | 2.87 | 1.69 | 3.91 | 2.20 | 5.56 | 2.90 |
| 1" | 33.4 | 3.38 | 2.50 | 4.55 | 3.24 | 6.35 | 4.24 |
| 1½" | 48.3 | 3.68 | 4.05 | 5.08 | 5.41 | 7.14 | 7.25 |
| 2" | 60.3 | 3.91 | 5.44 | 5.54 | 7.48 | 8.74 | 11.11 |
| 3" | 88.9 | 5.49 | 11.29 | 7.62 | 15.27 | 11.13 | 21.35 |
| 4" | 114.3 | 6.02 | 16.07 | 8.56 | 22.32 | 13.49 | 33.57 |
| 6" | 168.3 | 7.11 | 28.26 | 10.97 | 42.56 | 14.27 | 54.20 |
| 8" | 219.1 | 8.18 | 42.55 | 12.70 | 64.64 | 15.09 | 75.92 |
| 10" | 273.1 | 9.27 | 60.31 | 12.70 | 81.55 | 15.09 | 95.97 |
| 12" | 323.9 | 9.53 | 73.78 | 12.70 | 97.44 | 17.48 | 132.05 |
* Weights are approximate and calculated per ASME B36.10M. Actual weights may vary ±2% depending on mill tolerance.
S355JR Tubes – Pressure Rating
Allowable working pressure (bar) per ASME B31.3 at ambient temperature (38 °C). Pressure reduces at elevated temperature — consult ASME B31.3 Table A-1.
| NPS | OD (mm) | SCH 40 WT (mm) | SCH 40 Pressure (bar) |
SCH 80 WT (mm) | SCH 80 Pressure (bar) |
SCH 160 WT (mm) | SCH 160 Pressure (bar) |
|---|---|---|---|---|---|---|---|
| ½" | 21.3 | 2.77 | 443 | 3.73 | 597 | 4.78 | 765 |
| ¾" | 26.7 | 2.87 | 366 | 3.91 | 499 | 5.56 | 710 |
| 1" | 33.4 | 3.38 | 345 | 4.55 | 464 | 6.35 | 648 |
| 1½" | 48.3 | 3.68 | 260 | 5.08 | 358 | 7.14 | 504 |
| 2" | 60.3 | 3.91 | 221 | 5.54 | 313 | 8.74 | 494 |
| 3" | 88.9 | 5.49 | 210 | 7.62 | 292 | 11.13 | 427 |
| 4" | 114.3 | 6.02 | 179 | 8.56 | 255 | 13.49 | 402 |
| 6" | 168.3 | 7.11 | 144 | 10.97 | 222 | 14.27 | 289 |
| 8" | 219.1 | 8.18 | 127 | 12.70 | 198 | 15.09 | 235 |
| 10" | 273.1 | 9.27 | 116 | 12.70 | 158 | 15.09 | 188 |
| 12" | 323.9 | 9.53 | 100 | 12.70 | 134 | 17.48 | 184 |
* Pressures are indicative, calculated using Barlow's formula with 72% SMYS design factor. For engineering design, refer to ASME B31.3 / B31.1.
Types of S355JR Tubes
- Precision seamless tubes
- Heat exchanger tubes
- Hydraulic tubes
- Instrumentation tubes
- Structural hollow sections
Applications of S355JR Tubes
Industries We Serve
Ready to order S355JR Tubes?
Stock available in Mumbai. Same-day quotation. Export documentation included.
Email Quote Call NowS355JR – Grade Specification
| Standard | Category | Tensile Strength | Yield Strength | Elongation |
|---|---|---|---|---|
| EN 10025-2 S355JR / DIN 1.0045 ✓ | High-Strength Structural Steel | 470–630 MPa | 355 MPa (t ≤ 16 mm) | 22% min |
| EN (S355JR / 1.0045) | Equivalent | See equivalent grades table above | ||
| ASTM (A572 Gr.50) | Equivalent | See equivalent grades table above | ||
| IS (E350) | Equivalent | See equivalent grades table above | ||
| JIS (SM490A) | Equivalent | See equivalent grades table above | ||
| BS (50B) | Equivalent | See equivalent grades table above | ||
* All values are minimum guaranteed per EN 10025-2 S355JR / DIN 1.0045. Actual mill certificates may show higher values.
Why Buy S355JR Tubes from BB Infras?
| Ready Stock | Large inventory of S355JR Tubes in popular sizes maintained in our Mumbai warehouse for immediate dispatch. |
| Certified Material | All material supplied with EN 10204 3.1 Mill Test Certificates from NABL-accredited labs. TPI by SGS, BV, TUV on request. |
| Worldwide Export | We export S355JR Tubes to 80+ countries with complete export documentation — COO, packing list, B/L, fumigation certificates. |
| Competitive Pricing | Direct mill sourcing and bulk buying ensures competitive prices. No middlemen. Transparent pricing with no hidden charges. |
| Fast Delivery | Standard sizes dispatched within 3–5 business days. Custom sizes within 3–4 weeks. Urgent orders accommodated. |
| Value-Added Services | Cut-to-length, bevelling, threading, galvanising, painting, marking & stencilling available in-house. |
| Technical Support | Our metallurgical team assists with grade selection, standard interpretation, and material substitution queries. |
| MSME Registered | Registered MSME supplier. Eligible for GeM portal procurement and government tenders. |
Certifications & Quality Inspection
Every S355JR Tubes supplied by BB Infras undergoes the following quality controls:
Quality Inspection Checklist
- Chemical composition analysis (OES / wet analysis)
- Mechanical testing: tensile, yield, elongation, impact
- Dimensional inspection per applicable ASME standard
- Visual and surface finish inspection
- Hydrostatic or pneumatic pressure testing
- Non-Destructive Testing: UT, RT, MT, PT on request
- Positive Material Identification (PMI) on request
Export Packaging & MOQ
- Minimum Order Quantity (MOQ): 100 kg or 1 piece (standard sizes); 500 kg for custom sizes
- Packing for Pipes/Tubes: Bundled with steel strapping, plastic end caps, moisture-proof wrapping
- Packing for Fittings/Flanges: Wooden box / wooden pallet, plywood case for heavy items
- Sea Freight: FCL / LCL container, fumigation certificate provided
- Air Freight: Available for urgent requirements
- Documents: Commercial Invoice, Packing List, Certificate of Origin, MTC, Bill of Lading, Insurance Certificate
- Marking: Heat number, grade, size, schedule, standard per ASTM A5.40 / ASME marking requirements
Tubes Marking & Identification
Every S355JR Tubes supplied by BB Infras is marked per EN 10025-2 S355JR / DIN 1.0045 and ASME marking requirements. Standard marking sequence:
- Manufacturer name / mark — BB Infras or mill of origin
- Specification — EN 10025-2 S355JR
- Grade — S355JR
- Type — E (ERW)
- Size & schedule — NPS × SCH or wall thickness
- Heat / lot number — for full traceability to MTC
- Length — actual pipe length in metres
- NDE symbol — if nondestructive examination was performed
Coating & Surface Finish Options
| Coating Type | Standard | Application | Lead Time |
|---|---|---|---|
| Black (Mill Finish) | Per standard | General service, indoor piping | In Stock |
| Hot-Dipped Galvanised (HDG) | ASTM A123 | Outdoor, water & plumbing | 3–5 days |
| Oil Coated | — | Export transit corrosion protection | In Stock |
| FBE (Fusion Bonded Epoxy) | CSA Z245.20 | Underground water/gas pipelines | 2–3 weeks |
| 3LPE (3-Layer Polyethylene) | DIN 30670 | Buried oil & gas pipelines | 2–3 weeks |
| Coal Tar Epoxy | AWWA C203 | Offshore & marine | 1–2 weeks |
Testing & Inspection Procedure
All S355JR Tubes supplied by BB Infras undergo a multi-stage inspection and testing process before dispatch:
| # | Test / Inspection | Standard / Method | Acceptance |
|---|---|---|---|
| 1 | Chemical Composition (OES) | ASTM E415 | Per EN 10025-2 S355JR Table 1 |
| 2 | Tensile & Yield Strength | ASTM E8 | ≥470–630 MPa / ≥355 MPa (t ≤ 16 mm) |
| 3 | Elongation | ASTM E8 | ≥22% min |
| 4 | Hardness (HB) | ASTM E10 | Per standard max |
| 5 | Hydrostatic Test | EN 10025-2 S355JR / ASME B31.3 | Leak-free at test pressure |
| 6 | Dimensional Inspection | ASME B36.10M | Within tolerance |
| 7 | Visual & Surface | ASTM A530 / MSS SP-55 | Free from defects |
| 8 | Ultrasonic Testing (UT) | ASTM E213 (on request) | No sub-surface defects |
| 9 | PMI (XRF) | ASTM E1476 (on request) | Grade confirmation |
Storage & Handling Guidelines
- Store on wooden dunnage or pipe racks — never directly on concrete to avoid moisture-induced corrosion.
- Stack with appropriate separators; observe safe stack heights to prevent deformation.
- Apply plastic end caps or plugs to all open ends to prevent ingress of moisture, dust and insects.
- Keep material dry and ventilated; store under cover in humid or coastal climates.
- Use nylon slings or padded lifting hooks — never bare wire rope directly on surface.
- For long-term storage (>6 months), re-apply protective oil coating or wrap with VCI (Vapour Corrosion Inhibitor) film.
- Identify items with heat number tags throughout storage for full MTC traceability.
Downloads & Technical Resources
Request product documentation from our technical team. Available on enquiry:
Contact our technical team with your enquiry details and we will share the relevant document within 24 hours.
S355JR Tubes Supplier in India
BB Infras supplies S355JR Tubes to customers across India from our Mumbai stockyard. We serve all major industrial hubs — refineries in Jamnagar and Haldia, petrochemical clusters in Dahej and Panipat, shipyards in Kochi and Visakhapatnam, and fabrication workshops across Pune, Rajkot, Surat and Coimbatore — with same-day quotation and fast dispatch.
View all cities we supply ▾
S355JR Tubes Exporter – Countries We Ship To
BB Infras exports S355JR Tubes to 80+ countries with complete export documentation — Certificate of Origin, Material Test Certificate, Packing List, Bill of Lading and Fumigation Certificate. We are a trusted exporter to UAE, Saudi Arabia, Qatar, Oman and Kuwait in the Middle East; to Singapore, Malaysia, Indonesia and Vietnam in Southeast Asia; to South Africa, Nigeria and Kenya in Africa; and to the USA, UK, Germany and Netherlands in Europe and North America.
View all export countries ▾
Frequently Asked Questions
Get the best price for S355JR Tubes
Talk to our sales team — available Mon–Sat, 9 AM – 7 PM IST. Same-day quotes.
Contact Us Today +91-9152677155People Also Ask
Is S355JR pipe seamless or welded?
S355JR is available in both seamless and welded (ERW, SAW) forms under EN 10025-2 S355JR / DIN 1.0045. BB Infras stocks seamless Tubes and welded variants. Seamless offers higher burst pressure and superior fatigue resistance.
What schedules are available for S355JR Tubes?
Per ASME B36.10M: SCH 10, 20, 30, 40 (Standard), 60, 80 (Extra Strong), 100, 120, 140, 160 and XXS. BB Infras stocks SCH 40 and SCH 80 in popular sizes for immediate dispatch.
Can S355JR pipe be hot-dip galvanised?
Yes. Galvanising per ASTM A123 is available. Galvanised S355JR pipe is suitable for water supply, plumbing and outdoor structural applications. Specify HDG at time of enquiry.
What is the tensile and yield strength of S355JR?
Per EN 10025-2 S355JR: minimum tensile is 470–630 MPa and minimum yield is 355 MPa (t ≤ 16 mm). Actual mill certificates typically show values 5–15% above the standard minimum.
What is the price of S355JR Tubes in India?
Prices vary by size, schedule, quantity and current steel market rates. Contact BB Infras for a firm quotation from our Mumbai stockyard.
Authoritative Standards Referenced
| Standard | Issuing Body | Scope |
|---|---|---|
| EN 10025-2 S355JR / DIN 1.0045 | ASTM / ASME | Material specification for S355JR |
| ASME B36.10M | ASME | Welded and seamless wrought steel pipe — dimensional standard |
| ASTM A530 | ASTM | General requirements for specialised carbon and alloy steel pipe |
| EN 10204:2004 | CEN | Metallic products — types of inspection documents (3.1 MTC) |
| NACE MR0175 / ISO 15156 | NACE/ISO | Materials for H₂S service in oil and gas production |
