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Model No.: JIS G3445
Brand: Torich
Standard: Jis
Section Shape: Round
Application: Structure Pipe
Production Process: Cold Drawn
Certification: Bsi, Ce, Ul, Api
Whether Alloy: Non-Alloy
Tolerance: ±5%
Category: Welded Steel Pipe, Seamless Steel Pipe
Processing Service: Bending, Welding, Decoiling, Punching, Cutting
Keyword: Jis G3445 Carbon Steel Tube
Product Name: Jis G3445 Carbon Steel Tubes For Machine Structure
Application: For Machinery, Automobiles, Bicycles, Furniture, Appliances
Grade: Stkm 11a, Stkm 12a, Stkm 12c, Stkm 12b, Stkm 13a, Stkm 13b, Stkm 13c
Technique: Cold-Finished, Hot-Finished, Erw
OD: 6-420mm
WT: 1-50mm
Length: Max12000mm
Packaging: In hexagonal bundles or wooden box
Productivity: 50000 ton per year
Transportation: Ocean,Land,Air
Place of Origin: CHINA
Supply Ability: 50000 ton per year
Certificate: ISO9001, ISO14001, TSI16949
HS Code: 7304193000
Port: Ningbo,Shanghai
Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
Application: For machinery, automobiles, bicycles, furniture, appliances
Technique: Cold-finished, hot-finished, ERW
Chemical composition:
Grade | Designation | Unit % | ||||||
C | Si | Mn | P | S | Nb or V | |||
Grade 11 | A | STKM 11A | 0.12 max. | 0.35 max. | 0.60 max. | 0.040 max. | 0.040 max. | – |
Grade 12 | A | STKM 12A | 0.20 max. | 0.35 max. | 0.60 max. | 0.040 max. | 0.040 max. | – |
B | STKM 12B | |||||||
C | STKM 12C | |||||||
Grade 13 | A | STKM 13A | 0.25 max. | 0.35 max. | 0.30~0.90 | 0.040 max. | 0.040 max. | – |
B | STKM 13B | |||||||
C | STKM 13C | |||||||
Grade 14 | A | STKM 14A | 0.30 max. | 0.35 max. | 0.30~1.00 | 0.040 max. | 0.040 max. | – |
B | STKM 14B | |||||||
C | STKM 14C | |||||||
Grade 15 | A | STKM 15A | 0.25~0.35 | 0.35 max. | 0.30~1.00 | 0.040 max. | 0.040 max. | – |
C | STKM 15C | |||||||
Grade 16 | A | STKM 16A | 0.35~0.45 | 0.40 max. | 0.40~1.00 | 0.040 max. | 0.040 max. | – |
C | STKM 16C | |||||||
Grade 17 | A | STKM 17A | 0.45~0.55 | 0.40 max. | 0.40~1.00 | 0.040 max. | 0.040 max. | – |
C | STKM 17C | |||||||
Grade 18 | A | STKM 18A | 0.18 max. | 0.55 max. | 1.50 max. | 0.040 max. | 0.040 max. | – |
B | STKM 18B | |||||||
C | STKM 18C | |||||||
Grade 19 | A | STKM 19A | 0.25 max. | 0.55 max. | 1.50 max. | 0.040 max. | 0.040 max. | – |
C | STKM 19C | |||||||
Grade 20 | A | STKM 20A | 0.25 max. | 0.55 max. | 1.60 max. | 0.040 max. | 0.040 max. | 0.15 max. |
Mechanical proporties:
Designation | Tensile Strength
MPa{ksi} | Yield point or proof MPa{ksi} | Elongation % | Flattening strength Distance between flat plates (H) (D is outside dia. of the tube) | Bending strength | ||
No. 4, | No. 4, | Bend angle | Inside radius | ||||
No. 11 | No. 5 | (D is outside dia. of the tube) | |||||
No. 12 | test pieces Transverse direction | ||||||
test pieces Longitudinal direction | |||||||
STKM11A | 290{30} min. | – | 35 min. | 30 min. | 1/2 D | 180 | 4 D |
STKM12A | 340{35} min. | 175{18} min. | 35 min. | 30 min. | 2/3 D | 90 | 6 D |
STKM12B | 390{40} min. | 275{28} min. | 25 min. | 20 min. | 2/3 D | 90 | 6 D |
STKM12C | 470{48} min. | 355{36} min. | 20 min. | 15 min. | – | – | – |
STKM13A | 370{38} min. | 215{22} min. | 30 min. | 25 min. | 2/3 D | 90 | 6 D |
STKM13B | 440{45} min. | 305{31} min. | 20 min. | 15 min. | 3/4 D | 90 | 6 D |
STKM13C | 510{52} min. | 380{39} min. | 15 min. | 10 min. | – | – | – |
STKM14A | 410{42} min. | 245{25} min. | 25 min. | 20 min. | 3/4 D | 90 | 6 D |
STKM14B | 500{51} min. | 355{36} min. | 15 min. | 10 min. | 7/8 D | 90 | 8 D |
STKM14C | 550{56} min. | 410{42} min. | 15 min. | 10 min. | – | – | – |
STKM15A | 470{48} min. | 275{28} min. | 22 min. | 17 min. | 3/4 D | 90 | 6 D |
STKM15C | 580{59} min. | 430{44} min. | 12 min. | 7 min. | – | – | – |
STKM16A | 510{52} min. | 325{33} min. | 20 min. | 15 min. | 7/8 D | 90 | 8 D |
STKM16C | 620{63} min. | 460{47} min. | 12 min. | 7 min. | – | – | – |
STKM17A | 550{56} min. | 345{35} min. | 20 min. | 15 min. | 7/8 D | 90 | 8 D |
STKM17C | 650{66} min. | 480{49} min. | 10 min. | 5 min. | – | – | – |
STKM18A | 440{45} min. | 275{28} min. | 25 min. | 20 min. | 7/8 D | 90 | 6 D |
STKM18B | 490{50} min. | 315{32}min. | 23 min. | 18 min. | 7/8 D | 90 | 8 D |
STKM18C | 510{52} min. | 380{39} min. | 15 min. | 10 min. | – | – | – |
STKM19A | 490{50} min. | 315{32} min. | 23 min. | 18 min. | 7/8 D | 90 | 6 D |
STKM19C | 550{56} min. | 410{42} min. | 15 min. | 10 min. | – | – | – |
STKM20A | 540{55} min. | 390{40} min. | 23 min. | 18 min. | 7/8 D | 90 | 6 D |
Q: Are you trading company or manufacturer?
A: We are a professional steel pipes materials manufacturer.
Q: How long is your delivery time?
A: Generally it takes 7-14 days if the goods are in stock or 30-60 days if there is no stock, this mainly depends on quantity.
Q: Do you provide free samples?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us.
Product Categories : Seamless Steel Tubes
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.