ASME SA 516 GR.70N Nace MR 0103 & 0175 Plates

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Business Type	Manufacturer, Exporter, Supplier, Retailer, Trader, Distributor, Importer
Type	Carbon Steel Plates
Material	Carbon Steel
Grade	GR.70N (Normalized)
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Product Details

Compliance

NACE MR0103 / MR0175 / ISO 15156

Condition

Normalized

Thickness

5 Mm - 150 Mm

Width

1000 Mm - 3000 Mm

Length

3000 Mm - 12000 Mm

Form

Hot Rolled Steel Plates

Surface Finish

Mill Finish / Shot Blasted / Coated (on Request)

Delivery Time

7 - 12 Working Days

Yield Strength

≥ 260 MPa

Tensile Strength

485 - 620 MPa

Elongation

≥ 21% (50 Mm Gauge Length)

Impact Toughness

≥ 27 J At -46°C (on Request)

Chemical Composition

0.24,0.85 - 1.20,0.13 - 0.45,0.025,0.010,≥ 0.020

Applications

Pressure Vessels And Steam Drums In Sour Service,Crude Oil And Gas Processing Units,Heat Exchangers, Separators, And Knock-out Drums,H₂S Gas Storage And Handling Systems,Offshore Drilling Platforms And Petrochemical Refineries,Storage Tanks And LPG Bull

Product Overview

ASME SA 516 GR.70N NACE MR0103 / MR0175 plates are normalized carbon steel plates specially engineered for pressure vessels operating in sour service conditions. These plates are compliant with NACE MR0103, NACE MR0175, and ISO 15156 standards, making them suitable for hydrogen sulfide (H₂S) environments commonly found in the oil & gas, refinery, petrochemical, and offshore sectors.

Manufactured using fine-grain, killed steel practices, these plates exhibit excellent resistance to Hydrogen Induced Cracking (HIC) and Sulfide Stress Cracking (SSC), along with outstanding toughness, strength, and weldability.

Key Features

Fully compliant with NACE MR0175 / MR0103 / ISO 15156
Supplied in Normalized (N) condition
Excellent HIC & SSC resistance for sour gas applications
Exceptional tensile strength and impact toughness
Suitable for critical pressure vessels and storage tanks

Specifications

StandardASME SA 516 / ASTM A516

Grade	GR.70N (Normalized)
Compliance	NACE MR0103 / MR0175 / ISO 15156
Condition	Normalized
Thickness	5 mm – 150 mm
Width	1000 mm – 3000 mm
Length	3000 mm – 12000 mm
Form	Hot Rolled Steel Plates
Surface Finish	Mill Finish / Shot Blasted / Coated (on request)
MOQ	10 Metric Tons
Delivery Time	7 – 12 Working Days

Mechanical Properties (Typical)

PropertyValue

Yield Strength	≥ 260 MPa
Tensile Strength	485 – 620 MPa
Elongation	≥ 21% (50 mm gauge length)
Impact Toughness	≥ 27 J at -46°C (on request)

Chemical Composition (% max)

CMnSiPSAl

0.24

0.85 – 1.20

0.13–0.45

0.025

0.010

≥ 0.020

Produced using low residual elements for improved corrosion resistance and weldability.

Testing Performed

HIC Test – Hydrogen Induced Cracking as per NACE TM0284
SSC Test – Sulfide Stress Corrosion Cracking Resistance
Ultrasonic Testing (UT) – As per SA578 Level B / C
Charpy Impact Testing – Typically at -46°C
Other Testing – Chemical, Hardness, PMI, Spectro, Flattening, Hydrostatic, Visual, Dimensional

Applications

Pressure vessels and steam drums in sour service
Crude oil and gas processing units
Heat exchangers, separators, and knock-out drums
H₂S gas storage and handling systems
Offshore drilling platforms and petrochemical refineries
Storage tanks and LPG bullets for aggressive environments

Certifications & Documentation

Mill Test Certificate – EN 10204 3.1 / 3.2
NACE MR0175 / MR0103 Compliance Certificate
HIC / SSC Testing Reports
IBR / PED Certification on request
Third-party inspection (TUV, DNV, Lloyds, BV, SGS)
Export packing list, raw material traceability, QA/QC file

Would you like a comparison between GR.70N and GR.60N, a ready-to-use PDF datasheet, or details on export packaging? Let me know — I’ll prepare it right away.

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