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ASTM A312 TP304 Seamless Tube Hexagonal Outer Round Inner Stainless Steel Hollow Bar UNS S30400

ASTM A312 TP304 Seamless Tube Hexagonal Outer Round Inner Stainless Steel Hollow Bar UNS S30400

MOQ: 100KGS
Price: USD2.05-3.85/KG
Standard Packaging: Wooden Box
Delivery Period: 7-15 working days after deposit
Payment Method: L/C,D/P,T/T
Supply Capacity: 80000KGS
Detail Information
Place of Origin
China
Brand Name
MITTEL TISCO BAO STEEL
Certification
SGS ISO MTC
Model Number
304
Length:
Customizable, Typically 6m Or Cut To Length
Temperatureresistance:
Up To 1100°C Depending On Grade
Outer Diameter:
OD 6-114mm
Ndt Methods:
ET, UT, HT
Nitrogen Content:
0.45-0.55%
Specification:
OD 6-630mm
End:
Plain End, Beleved End, Thread End
Stock:
Always In Good Stock
Appllication:
Heat Exchanger/ Chemical
Yield Strength:
205 MPa Min
Material Grade:
TP316L SUS316L EN1.4404
Size:
Customized
Diameter Range:
OD6 - 630mm
Highlight:

ASTM A312 TP304 seamless tube

,

hexagonal outer round inner hollow bar

,

UNS S30400 stainless steel tube

Product Description

ASTM A312 TP304 Seamless Tube Hexagonal Outer Round Inner Stainless Steel Hollow Bar UNS S30400


TP304 (UNS S30400 / 1.4301) seamless tube with hexagonal outer profile and precision round inner bore is cold‑drawn and solution annealed. This special hollow bar combines the anti‑slip feature of hexagon outer surface and smooth round inner channel for fluid passage. It delivers excellent general corrosion resistance, good formability and reliable weldability. We supply custom across‑flat size, inner diameter, wall thickness and cut lengths, with full MTC 3.1 / 3.2, third‑party inspection acceptable.

Chemical Composition (wt%, ASTM A312 TP304)


Element C Si Mn P S Cr Ni N
Limit ≤0.08 ≤0.75 ≤2.00 ≤0.045 ≤0.030 18.0–20.0 8.0–10.5 ≤0.10

Mechanical Properties (Solution Annealed, Room Temp, ASTM A312)

表格

Property Value
Tensile strength, min 515 MPa (75 ksi)
0.2% Yield strength, min 205 MPa (30 ksi)
Elongation (50 mm), min 35%
Hardness, max 90 HRB / 192 HBW
Density 7.93 g/cm³
Solution annealing 1010–1120 °C, rapid cooling

Product Specifications

  • Shape: Hex outer, concentric round inner bore, seamless (no longitudinal weld)
  • Surface options: Pickled No.1, cold drawn bright, polished
  • Size range: Custom across‑flat, inner diameter & wall thickness; common length 6 m or cut‑to‑length
  • Tolerance: Custom concentricity, bore tolerance, hex dimension tolerance available
  • Package: Wooden crates / bundles, marked with heat number, grade & dimension
  • Certificate: EN 10204 3.1 / 3.2, SGS / BV inspection available

Applications

  • Hydraulic & pneumatic fittings, special hollow bolt blanks
  • Machinery transmission shafts, textile & packaging machine components
  • Food & beverage equipment, sanitary fluid passage parts
  • Instrumentation tubes, valve bodies, anti‑twist structural hollow parts
  • Marine general components, chemical pipelines under mild corrosion

ASTM A312 TP304 Seamless Tube Hexagonal Outer Round Inner Stainless Steel Hollow Bar UNS S30400

ASTM A312 TP304 Seamless Tube Hexagonal Outer Round Inner Stainless Steel Hollow Bar UNS S30400

ASTM A312 TP304 Seamless Tube Hexagonal Outer Round Inner Stainless Steel Hollow Bar UNS S30400

Products
PRODUCTS DETAILS
ASTM A312 TP304 Seamless Tube Hexagonal Outer Round Inner Stainless Steel Hollow Bar UNS S30400
MOQ: 100KGS
Price: USD2.05-3.85/KG
Standard Packaging: Wooden Box
Delivery Period: 7-15 working days after deposit
Payment Method: L/C,D/P,T/T
Supply Capacity: 80000KGS
Detail Information
Place of Origin
China
Brand Name
MITTEL TISCO BAO STEEL
Certification
SGS ISO MTC
Model Number
304
Length:
Customizable, Typically 6m Or Cut To Length
Temperatureresistance:
Up To 1100°C Depending On Grade
Outer Diameter:
OD 6-114mm
Ndt Methods:
ET, UT, HT
Nitrogen Content:
0.45-0.55%
Specification:
OD 6-630mm
End:
Plain End, Beleved End, Thread End
Stock:
Always In Good Stock
Appllication:
Heat Exchanger/ Chemical
Yield Strength:
205 MPa Min
Material Grade:
TP316L SUS316L EN1.4404
Size:
Customized
Diameter Range:
OD6 - 630mm
Minimum Order Quantity:
100KGS
Price:
USD2.05-3.85/KG
Packaging Details:
Wooden Box
Delivery Time:
7-15 working days after deposit
Payment Terms:
L/C,D/P,T/T
Supply Ability:
80000KGS
Highlight

ASTM A312 TP304 seamless tube

,

hexagonal outer round inner hollow bar

,

UNS S30400 stainless steel tube

Product Description

ASTM A312 TP304 Seamless Tube Hexagonal Outer Round Inner Stainless Steel Hollow Bar UNS S30400


TP304 (UNS S30400 / 1.4301) seamless tube with hexagonal outer profile and precision round inner bore is cold‑drawn and solution annealed. This special hollow bar combines the anti‑slip feature of hexagon outer surface and smooth round inner channel for fluid passage. It delivers excellent general corrosion resistance, good formability and reliable weldability. We supply custom across‑flat size, inner diameter, wall thickness and cut lengths, with full MTC 3.1 / 3.2, third‑party inspection acceptable.

Chemical Composition (wt%, ASTM A312 TP304)


Element C Si Mn P S Cr Ni N
Limit ≤0.08 ≤0.75 ≤2.00 ≤0.045 ≤0.030 18.0–20.0 8.0–10.5 ≤0.10

Mechanical Properties (Solution Annealed, Room Temp, ASTM A312)

表格

Property Value
Tensile strength, min 515 MPa (75 ksi)
0.2% Yield strength, min 205 MPa (30 ksi)
Elongation (50 mm), min 35%
Hardness, max 90 HRB / 192 HBW
Density 7.93 g/cm³
Solution annealing 1010–1120 °C, rapid cooling

Product Specifications

  • Shape: Hex outer, concentric round inner bore, seamless (no longitudinal weld)
  • Surface options: Pickled No.1, cold drawn bright, polished
  • Size range: Custom across‑flat, inner diameter & wall thickness; common length 6 m or cut‑to‑length
  • Tolerance: Custom concentricity, bore tolerance, hex dimension tolerance available
  • Package: Wooden crates / bundles, marked with heat number, grade & dimension
  • Certificate: EN 10204 3.1 / 3.2, SGS / BV inspection available

Applications

  • Hydraulic & pneumatic fittings, special hollow bolt blanks
  • Machinery transmission shafts, textile & packaging machine components
  • Food & beverage equipment, sanitary fluid passage parts
  • Instrumentation tubes, valve bodies, anti‑twist structural hollow parts
  • Marine general components, chemical pipelines under mild corrosion

ASTM A312 TP304 Seamless Tube Hexagonal Outer Round Inner Stainless Steel Hollow Bar UNS S30400

ASTM A312 TP304 Seamless Tube Hexagonal Outer Round Inner Stainless Steel Hollow Bar UNS S30400

ASTM A312 TP304 Seamless Tube Hexagonal Outer Round Inner Stainless Steel Hollow Bar UNS S30400