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JIS G3445 Seamless carbon steel pipe for mechanical structures
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JIS G3445 Seamless carbon steel pipe for mechanical structures
Still deciding? Get samples first, Contact US !
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Product Description
JIS G 3445 steel pipe is a seamless carbon steel pipe for mechanical structure, which can be formed by bending, crimping and similar processes, and is also suitable for welding work. Pipe material grades (chemical composition) are STKM11A, STKM12A/B/C, STKM13 A/B/C, STKM14 A/B/C, etc. They are manufactured by hot forming or cold drawing process.
Product Size
Outer diameter: 21.3～610mm
Wall thickness: 2.77～22.00mm
End: Flat end
Length: 3 to 12 meters or SRL, DRL, double-footed and fixed-footedProduct Packaging
The outer surface is oiled or varnished/black painted, also hot-dip galvanized, and strapped with steel straps.
Chemical composition
C Si Mn P S Nb+V ≤，% STKM11A 0.12 0.35 0.6 0.04 0.04 一 STKM12A 0.20 0.35 0.6 0.04 0.04 一 STKM12B STKM12C STKM13A 0.25 0.35 0.30－0.90 0.04 0.04 一 STKM13B STKM13C STKM14A 0.3 0.35 0.30－1.00 0.04 0.04 一 STKM14B STKM14C STKM15A 0.2－0.35 0.35 0.30－1.00 0.04 0.04 一 STKM15C STKM16A 0.35－0.45 0.4 0.40－1.00 0.04 0.04 一 STKM16C STKM17A 0.45－0.55 0.4 0.40－1.00 0.04 0.04 一 STKM17C STKM18A 0.18 0.55 1.5 0.04 0.04 一 STKM18B STKM18C STKM19A 0.25 0.55 1.5 0.04 0.04 一 STKM19C STKM20A 0.25 0.55 1.6 0.04 0.04 0.15 Product Mechanical Properties
Tensile strength ≥, MPa Yield strength ≥, MPa Elongation at break ≥, % Specimen No. 11 or 12, longitudinal Specimen No. 5, horizontal Specimen No. 4, longitudinal Specimen No. 4, longitudinal STKM11A 290 一 35 30 33 28 STKM12A 340 175 35 30 33 28 STKM12B 390 275 25 20 23 18 STKM12C 470 355 20 15 18 14 STKM13A 370 215 30 25 28 23 STKM13B 440 305 20 15 18 14 STKM13C 510 380 15 10 14 9 STKM14A 410 245 25 20 23 18 STKM14B 500 355 15 10 14 9 STKM14C 550 410 15 10 14 9 STKM15A 470 275 22 17 20 16 STKM15C 580 430 12 7 11 6 STKM16A 510 325 20 15 18 14 STKM16C 620 460 12 7 11 6 STKM17A 550 345 20 15 18 14 STKM17C 650 480 10 5 9 4 STKM18A 440 275 25 20 23 18 STKM18B 490 315 23 18 21 17 STKM18C 510 380 15 10 14 9 STKM19A 490 315 23 18 21 17 STKM19C 550 410 15 10 14 9 STKM20A 540 390 23 18 21 17 Application
Typically used in the construction of machinery, automobiles, bicycles, furniture, appliances and other mechanical components.
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Yantai Pipe industry Co., Ltd.,
E-mail: info@yantaipipe.cn
WhatsApp: 8615653819370
Tel: 0086-535-6281117
Add: No. 161 Changjiang Road, FTZ, Yantai , China