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Stainless Steel Hex Bars

Grade 304, 304L, 316, 316L, 321, 347 • ASTM A276 / A484 • Hot Rolled & Cold Drawn • Mumbai, India

Stainless Steel Hex Bars Manufacturer in India

Stainless Steel Hex Bars

Ganpat Metal manufactures and supplies Stainless Steel Hex Bars in Grade 304, 304L, 316, 316L, 321 and 347 conforming to ASTM A276 / ASME SA276 and ASTM A484. These precision hex bars are engineered for high-performance applications including high-tensile fastener manufacturing, valve bodies, precision fittings, pump components and CNC machined parts for chemical, petrochemical, pharmaceutical and marine industries.

Our stainless steel hex bars are available in cold drawn, centerless ground, solution annealed, and pickled surface conditions. Each alloy grade is carefully heat treated to achieve optimal mechanical properties, superior dimensional straightness, and exceptional corrosion resistance across diverse harsh operating environments.

With sizes ranging from 3 mm to 100 mm across flats (AF) and customized cut lengths up to 6000 mm, Ganpat Metal maintains one of the largest ready stocks of stainless steel hexagonal bars in Mumbai, ready for immediate domestic and export dispatch.

GM Stainless Steel Hex Bars

GM handles enquiries for Stainless Steel Hex Bars where buyers need to match hexagonal bar dimensions, across flats (AF) tolerances, and material grade to project drawings or purchase specifications. The supplied inventory covers precision cold drawn and hot rolled sizes beginning from 3 mm up to 100 mm across flats, with custom cut-to-length and surface finish options.

Grade selection should be based on the mechanical tensile properties, hardness, corrosion resistance, and chemical composition required by the project application. Buyers should also confirm the applicable standard specification (ASTM / ASME / EN), delivery condition (cold drawn, annealed, or quenched & tempered), inspection requirements, and documentation before finalizing an order.

Stainless Steel Hex Bars Specifications

Stainless Steel Hex Bars Technical Data & Specifications Matrix

Stainless Steel Hex Bars Specifications

ParameterSpecification
Standard SpecificationsASTM A276 / ASME SA276, ASTM A479, ASTM A484
Available GradesSS 304, 304L, 316, 316L, 321, 347, 310S
Size Range (Across Flats)3 mm to 100 mm (1/8" to 4" AF)
Length100 mm to 6000 mm (Custom cut lengths available)
Form & ShapesHexagonal Bar (Hex Bar), Square Bar, Flat Bar
Condition & TemperCold Drawn, Hot Rolled, Annealed & Pickled, Solution Treated
Surface FinishBright Cold Drawn, Smooth Turned, Pickled, Polished
Dimensional ToleranceASTM A484 / EN 10278 (h9, h10, h11, k11)
Testing & CertificationPMI, Tensile, Hardness, IGC Test, NABL Lab Certified
DocumentationEN 10204 Type 3.1 / 3.2 Mill Test Certificate

Stainless Steel Hex Bars Chemical Composition

Standard chemical composition limits conform to international metallurgical standards.

GradeC maxCrNiMoMn maxOther
3040.0818.0 – 20.08.0 – 10.5—2.0Si 0.75 max
304L0.03018.0 – 20.08.0 – 12.0—2.0Si 0.75 max
3160.0816.0 – 18.010.0 – 14.02.0 – 3.02.0Si 0.75 max
316L0.03016.0 – 18.010.0 – 14.02.0 – 3.02.0Si 0.75 max
3210.0817.0 – 19.09.0 – 12.0—2.0Ti ≥ 5x(C+N)
3470.0817.0 – 19.09.0 – 13.0—2.0Nb ≥ 10xC

Stainless Steel Hex Bars Mechanical Properties

Minimum mechanical property requirements in designated standard delivery condition:

GradeTensile Strength (min)Yield Strength 0.2% (min)Elongation (min)Hardness (max)
304515 MPa (75 ksi)205 MPa (30 ksi)40%201 HB / 92 HRB
304L485 MPa (70 ksi)170 MPa (25 ksi)40%201 HB / 92 HRB
316515 MPa (75 ksi)205 MPa (30 ksi)40%217 HB / 95 HRB
316L485 MPa (70 ksi)170 MPa (25 ksi)40%217 HB / 95 HRB
321515 MPa (75 ksi)205 MPa (30 ksi)40%217 HB / 95 HRB
347515 MPa (75 ksi)205 MPa (30 ksi)40%217 HB / 95 HRB

Stainless Steel Hex Bars Equivalent Grades

Standard / CountryDesignation
AISI / ASTM Type 304UNS S30400 • W.Nr. 1.4301 • EN X5CrNi18-10 • SUS 304
AISI / ASTM Type 304LUNS S30403 • W.Nr. 1.4306/1.4307 • EN X2CrNi18-9 • SUS 304L
AISI / ASTM Type 316UNS S31600 • W.Nr. 1.4401 • EN X5CrNiMo17-12-2 • SUS 316
AISI / ASTM Type 316LUNS S31603 • W.Nr. 1.4404 • EN X2CrNiMo17-12-2 • SUS 316L
AISI / ASTM Type 321UNS S32100 • W.Nr. 1.4541 • EN X6CrNiTi18-10 • SUS 321
AISI / ASTM Type 347UNS S34700 • W.Nr. 1.4550 • EN X6CrNiNb18-10 • SUS 347

Stainless Steel Hex Bars Sizes and Dimensions

Form / TypeSize RangeLength / DimensionsCondition / Standard
Cold Drawn Hex Bar3 mm to 65 mm AF1000 mm to 6000 mmCold Drawn, h9/h11, Annealed & Pickled
Hot Rolled Hex Bar20 mm to 100 mm AFUp to 6000 mm / RandomHot Rolled, Annealed & Descaled
Centerless Ground Hex5 mm to 50 mm AFUp to 4000 mmPrecision Ground, h8/h9 Tolerance
Custom Cut PiecesAll SizesCustom Cut-to-lengthDeburred ends, Ready to machine

Custom dimensions, special cuts, and tailored surface conditions available on request.

Stainless Steel Hex Bars Weight Calculator

Enter hex bar dimensions (across flats & length) and click Calculate to get approximate weight.

Stainless Steel Hex Bars Inspection and Testing

  • Chemical composition verification by Optical Emission Spectrometry (PMI / OES)
  • Tensile strength, yield strength (0.2% offset) and elongation testing
  • Hardness testing (Brinell HB / Rockwell HRC / HRB as per standard)
  • Dimensional inspection across flats (A/F), corner radii, and corner-to-corner accuracy
  • Visual and surface inspection for surface imperfections, seam or lap defects
  • Straightness check per meter and overall bar length verification
  • Ultrasonic Testing (UT) / Eddy Current testing as per ASTM A388 / EN 10228
  • Intergranular corrosion test (IGC per ASTM A262 Practice E/A) where applicable
  • Macro-etching and microstructure grain size assessment
  • Positive Material Identification (PMI) with portable XRF analyzer
  • Third-Party Inspection (TPI) by agencies such as Bureau Veritas, DNV, SGS, TUV
  • Complete Mill Test Certificate EN 10204 Type 3.1 / 3.2 documentation

Stainless Steel Hex Bars Applications

  • High-strength fastener manufacturing (hex bolts, cap screws, studs, nuts)
  • Precision CNC turned components and valve spindle manufacturing
  • Petrochemical refineries, process piping systems and cracker plants
  • Offshore oil & gas drilling rigs, subsea manifolds and wellhead valves
  • Chemical processing reactors, agitators, pump shafts and mixer impellers
  • Power generation facilities, boiler headers, steam manifolds and turbine bolts
  • Marine propeller shafts, seawater intake screens and naval fasteners
  • Pharmaceutical sterile equipment, food processing machinery and sanitary fittings
  • Fertilizer manufacturing plants, ammonia synthesis and urea reactors
  • Pulp and paper processing digesters and chlorine bleach plant components
  • Aerospace engine brackets, high-tensile fasteners and actuator rods
  • Automotive fuel injection rails, high-pressure fittings and steering linkages

Stainless Steel Hex Bars Manufacturer and Supplier in India

Ganpat Metal manufactures and supplies certified Stainless Steel Hex Bars for industrial buyers across India. All materials are sourced from premium quality mills, fully tested for chemistry, mechanical properties, and dimensional tolerances, and supplied with complete traceable Mill Test Certificates.

Whether you require standard stock dimensions or customized sizes, Ganpat Metal maintains deep inventories in Mumbai and provides rapid dispatch, custom cut-to-length services, and third-party inspection support.

Stainless Steel Hex Bars Exporter from India

India India UAE UAE Saudi Arabia Saudi Arabia Oman Oman Australia Australia Malaysia Malaysia Singapore Singapore Bangladesh Bangladesh Egypt Egypt Brazil Brazil Russia Russia Kazakhstan Kazakhstan

Why Choose Ganpat Metal for Stainless Steel Hex Bars?

  • ASTM / ASME certified prime materials with full trace MTC (EN 10204 3.1 / 3.2)
  • Complete size range from 3 mm up to 100 mm across flats in stock
  • Multiple delivery conditions: cold drawn, solution annealed, normalized & tempered
  • Mirror-bright, cold-drawn peeled, or pickled clean surface finishes
  • Tight dimensional tolerances conforming to ASTM A484 / EN 10278 h11 / h9
  • In-house high-precision band saw cutting to exact client-specified cut lengths
  • Stringent quality control with PMI testing before dispatch
  • Rapid dispatch from Mumbai warehouses for urgent turnaround projects
  • Third-party inspection support (TUV, DNV, Lloyds, Bureau Veritas, SGS)
  • Export-worthy seaworthy wooden crate packaging with end cap protection
  • ISO 9001:2015 certified company with 35+ years of trusted engineering supply

Specify Your Stainless Steel Hex Bars Requirement

RequirementDetails to Provide
GradeSS 304 / 304L / 316 / 316L / 321 / 347
StandardASTM A276 / ASME SA276 / ASTM A479 / ASTM A484
Size Across Flats (AF)Required width across flats in mm or inches
LengthStandard 3m / 6m or exact cut-to-length in mm
Surface ConditionBright Cold Drawn / Smooth Turned / Annealed & Pickled
QuantityRequired quantity in kg, meters, or number of bars
Testing & CertificationTPI, NABL Lab, IBR, Ultrasonic Test, PMI
DocumentationEN 10204 Type 3.1 / 3.2 Mill Test Certificate