Seamless 4130 Alloy Steel Tubing

TW’s cold drawn seamless chromoly 4130 tubing is a lighter weight, higher strength alternative to carbon steel. As the market leader in seamless 4130 tubing, TW Metals delivers a full range of rounds, squares, rectangles, and streamline products. Our tubing is manufactured to Mil-T-6736B, AMS-T-6736, ASTM A519, and AMS 6360 specifications. 

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Specification
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Shape
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SKU Description Manufacture Method OD Wall Specification
Sku: 35233 Description: SMLS CD 4130 6736 3/8 SQ X .035 WA Manufacture Method: SEAMLESS & DRAWN OD: 0.3750 Wall: 0.0350 Specification: AMS6360 P AMS-T-6736
Sku: 27854 Description: SMLS CD 4130 RD 6736 3/8 X .120 Manufacture Method: SEAMLESS & DRAWN OD: 0.3750 Wall: 0.1200 Specification: AMS6360 P AMS-T-6736
Sku: 27374 Description: SMLS CD 4130 RD 6736 3/8 X .083 Manufacture Method: SEAMLESS & DRAWN OD: 0.3750 Wall: 0.0830 Specification: AMS6360 P AMS-T-6736
Sku: 27075 Description: SMLS CD 4130 RD 6736 3/8 OD X .065 Manufacture Method: SEAMLESS & DRAWN OD: 0.3750 Wall: 0.0650 Specification: AMS6360 P AMS-T-6736
Sku: 26589 Description: SMLS CD 4130 RD 6736 3/8 X .058 Manufacture Method: SEAMLESS & DRAWN OD: 0.3750 Wall: 0.0580 Specification: AMS6360 P AMS-T-6736
Sku: 26314 Description: SMLS CD 4130 6736 3/8 X .049 Manufacture Method: SEAMLESS & DRAWN OD: 0.3750 Wall: 0.0490 Specification: AMS6360 P AMS-T-6736
Sku: 25872 Description: SCD 4130 RD 6736 3/8 X .035 Manufacture Method: SEAMLESS & DRAWN OD: 0.3750 Wall: 0.0350 Specification: AMS6360 P AMS-T-6736
Sku: 25246 Description: SMLS CD 4130 RD 6736 3/8 OD X .028 Manufacture Method: SEAMLESS & DRAWN OD: 0.3750 Wall: 0.0280 Specification: AMS6360 P AMS-T-6736
Sku: 35234 Description: SMLS CD 4130 SQ 6736 1/2 SQ X .035 Manufacture Method: SEAMLESS & DRAWN OD: 0.5000 Wall: 0.0350 Specification: AMS6360 P AMS-T-6736
Sku: 32837 Description: SMLS CD 4130 6736 1/2 OD X .120 WA Manufacture Method: SEAMLESS & DRAWN OD: 0.5000 Wall: 0.1200 Specification: AMS6360 P AMS-T-6736

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ADVANTAGES OF 4130 TUBING

  • Excellent weldability
  • High yield strength
  • High ultimate tensile strength
Typical Chemical Properties
Carbon Max 0.33
Manganese Max .60
Phosphorous Max 0.025
Sulfur Max 0.025
Silicon Max 0.35
Chromium Range .80-1.10
Molybdenum Range .15-.25
Typical Mechanical Properties
Tensile Strength Min 90,000 psi
Yield Strength Min 80,000 psi
Elongation Min 10%
Hardness Min 95 HRB
TW Metals offer as wide range of stock sizes and processing capabilities for your company’s 4130 tubing needs. We stock .1875” OD – 5” OD with wall thicknesses .028” thru .625” wall.