410 QDT Stainless Steel Bar

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410 QDT Stainless Steel Bar

410 QDT Stainless Steel barsBest Stainless is proud to offer type 410 QDT stainless steel bars, suitable for petrochemical applications such as oilfield sour gas hydrogen sulfide (H2S) services. Each bar is double tempered to relieve internal stresses and to guarantee that no untempered martensite remains in the steel. Best Stainless 410 QDT stainless steel bars boast a minimum yield strength of 80 KSI and a hardness of RC22 max. These attributes are in compliance with standards set for H2S-containing environments, NACE MR0175 and/or MR0103. 410 QDT SS bars also meet AP1 6A standards, making them optimal for resisting corrosion during petrochemical applications such as sour gas H2S services.

Materials are manufactured and certified to the latest revision of these following specifications:

410 QDT Stainless Steel Bar Standards

  • AISI 410-UNS S41000 (chem. only)
  • QQS 763F (chem. only)
  • ASTM A276/479/484 (chem. only) 
  • ASME SA276/479/484 (chem. only)
  • ASTM A-370 (testing)
  • NACE MR 0175/ISO 15156-3, NACE MR 0103
  • API 6A PSL-3, ISO 10423
  • EN 10204 3.1 
*Materials conform to all requirements of the above listed specifications, except as modified as noted below; 

AISI 410 QDT Stainless Steel Chemical Composition

  • Carbon: 0.08-0.15*
  • Manganese: 0.40-1.0*
  • Phosphorus: 0.020 max.*
  • Silicon: 0.15-0.50*
  • Chromium: 12.5-13.5*(aim 13 min)
  • Sulfur: 0.005 max.*
  • Columbium: 0.05 max*
  • Iron: Balance*
  • Molybdenum: 0.50 max*
  • Nitrogen: 0.10 max*
  • Nickel: 0.50 max*
  • Copper: 0.25 max*
  • Aluminum: 0.05 max*
  • Vanadium: 0.10 max*
  • Tin: 0.05% max*
 

410 QDT Stainless Seel Mechanical Properties

PropertyValue
Tensile 100 ksi min*
Yield 80 ksi min – 95 ks. max*
Elongation 20% min*
Reduction of Area 40% min*
Hardness (surface) 207-235 max BHN
(2 readings off QTC or test piece and 1 off bars)
Charpy V Notch Requirement Charpy-V-Notch at minus -20° F*

*   Mechanical requirements more restrictive than referenced specifications.
  Minimum Average of 3 greater than 20ft/lbs (none less than 15 ft/lbs, two must be at or over 20 ft/lbs).

410 QDT SS Diameters Available from Stocks*

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* Additional diameters may be available, inquiries are welcome.410 QDT SS Lengths20ft-2" min to 24ft R/L

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