Ultra-Load-Bearing ASTM A519 Seamless Steel Pipes for Structural Use 1016, 1020, 1026, 1035, 1045, 4130, 4140

• Customization: Available
• After-sales Service: 24h Online
• Type: Seamless/Welded
• Model NO.: 1016, 1020, 1026, 1035, 1045, 4130, 4140
• Technique: Hot/Cold Rolled, Cold Draw, ERW, Saw, Efw, Extrude
• Material: Carbon, Stainless, Alloy
• Surface Treatment: Black/Varnishing/Polished/Oiled/Galvanized
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Payment: T/T, L/C
• Certificate: CCS, ABS, BV API, ISO9001
• Thickness: Customizable
• Length: Customizable
• Width: Customizable
• Delivery: at Stock or 7-15 Days According to The Quantity
• Grade: 1016, 1020, 1026, 1035, 1045, 4130, 4140
• MOQ: Low MOQ
• Quality Control: 100% Inspection
• Secondary or Not: Non-Secondary
• Sample: Provide
• Transport Package: Neutral Standard Export Seaworthy Packing
• Specification: As customer′s requirement
• Trademark: TONGNO
• Origin: Wuxi China
• HS Code: 730419
• Production Capacity: 200000 Ton/Year

Product Description

Product Description

Structural seamless pipe (GB/T8162-2008) is a seamless pipe used in general structure and mechanical structure. It is a kind of seamless steel pipe divided into varieties due to its different uses.

Structural stainless steel seamless pipe (GB/T14975-2002) is used throughout the chemical, petroleum, textile, medical, food, machinery and other industries, corrosion-resistant piping and structural components and parts of the stainless steel made of hot-rolled (extrusion, expansion) and cold-drawn (rolled) seamless pipe.
 

Standard:
GB/T8162--Chinese National Standard
ASTM A53--American Society for Testing and Materials Standard
ASME SA53--American Boiler and Pressure Vessel Code
ASTM A519--American Society for Testing and Materials Standard
GB/T699--Chinese National Standard
GB/T3077--Chinese National Standard

Uses:
Used in the manufacture of pipelines, vessels, equipment, pipe fittings and mechanical structure with seamless steel pipe
Main production steel pipe grades:
10,20,35,45,15Mn,20Mn,25Mn,30Mn,35Mn,40Mn,45Mn,Q235,Q275,Q345,Q390,Q420,20Mn2,30Mn2,35Mn2,40Mn2,45Mn2,50Mn2,27SiMn,20Cr,40Cr,38CrSi,15CrMo,20CrMo,30CrMo,
35CrMo,42CrMo,1016,1020,1026,1035,1045,4130,4140
 

1.Fine,grain structure pipe

Standard: EN10210
Grade: S275JOH,S275J2H,S355JOH,S355J2H
 

2.Ocean engineering structural pipes

Standard:  API SPEC 5L,EN 10210,EN 10225,etc
Primary Material:  Q235-Q690,B-X100Q,NV A32 ~NV EO690

Dimensional tolerances:

Pipe Types	Diameter(D)		Wall thickness(S)
	Outer diameter of steel pipe(mm)	Permissible deviation(mm)	Wall thickness of steel pipe(mm)	Permissible deviation(mm)
Cold Drawn Pip	>30~50	±0.3	≤30	±10%
	>50~219	±0.8%
Hot Rolled Pipe	>219	±1.0%	>20	±10%

Chemical composition:

Standard	Grade	Chemical Components(%)
		C	Si	Mn	P	S	Cu	Ni	Mo	Cr	V
GB/T8162 GB/T699 GB/T3077	10	0.07~0.14	0.17~0.37	0.35~0.65	≤0.035	≤0.035	≤0.25	≤0.25	/	≤0.15	/
	20	0.17~0.24	0.17~0.37	0.35~0.65	≤0.035	≤0.035	≤0.25	≤0.25	/	≤0.25	/
	35	0.32~0.40	0.17~0.37	0.50~0.80	≤0.035	≤0.035	≤0.25	≤0.25	/	≤0.25	/
	45	0.42~0.50	0.17~0.37	0.50~0.80	≤0.035	≤0.035	≤0.25	≤0.25	/	≤0.25	/
	15Mn	0.12~0.18	0.17~0.37	0.70~1.00	≤0.035	≤0.035	≤0.25	≤0.30	/	≤0.25	/
	20Mn	0.17~0.23	0.17~0.37	0.70~1.00	≤0.035	≤0.035	≤0.25	≤0.30	/	≤0.25	/
	25Mn	0.22~0.29	0.17~0.37	0.70~1.00	≤0.035	≤0.035	≤0.25	≤0.30	/	≤0.25	/
	30Mn	0.27~0.34	0.17~0.37	0.70~1.00	≤0.035	≤0.035	≤0.25	≤0.30	/	≤0.25	/
	35Mn	0.32~0.39	0.17~0.37	0.70~1.00	≤0.035	≤0.035	≤0.25	≤0.30	/	≤0.25	/
	40Mn	0.37~0.44	0.17~0.37	0.70~1.00	≤0.035	≤0.035	≤0.25	≤0.30	/	≤0.25	/
	45Mn	0.42~0.50	0.17~0.37	0.70~1.00	≤0.035	≤0.035	≤0.25	≤0.30	/	≤0.25	/
	Q345	≤0.20	0.20~0.50	1.20~1.60	≤0.035	≤0.035	≤0.20	≤0.50	/	/	/
	Q390	≤0.20	≤0.50	≤1.70	≤0.035	≤0.035	≤0.20	≤0.50	/	/	/
	Q420	≤0.20	≤0.50	≤1.70	≤0.035	≤0.035	≤0.20	≤0.50	/	/	/
	20Mn2	0.17~0.24	0.17~0.37	1.40~1.80	/	/	/	/	/	/	/
	30Mn2	0.27~0.34	0.17~0.37	1.40~1.80	/	/	/	/	/	/	/
	35Mn2	0.32~0.39	0.17~0.37	1.40~1.80	/	/	/	/	/	/	/
	40Mn2	0.37~0.44	0.17~0.37	1.40~1.80	/	/	/	/	/	/	/
	45Mn2	0.42~0.49	0.17~0.37	1.40~1.80	/	/	/	/	/	/	/
	50Mn2	0.47~0.55	0.17~0.37	1.40~1.80	/	/	/	/	/	/	/
	27SiMn	0.24~0.32	1.10~1.40	1.10~1.40	/	/	/	/	/	/	/
	20Cr	0.18~0.24	0.17~0.37	0.50~0.80	/	/	/	/	/	/	/
	40Cr	0.37~0.44	0.17~0.37	0.50~0.80	/	/	/	/	/	/	/
	38CrSi	0.35~0.43	0.17~0.37	0.30~0.60	/	/	/	/	/	/	/
	15CrMo	0.12~0.18	0.17~0.37	0.40~0.70	/	/	/	/	/	/	/
	20CrMo	0.17~0.24	0.17~0.37	0.40~0.70	/	/	/	/	/	/	/
	30CrMo	0.26~0.33	0.17~0.37	0.40~0.70	/	/	/	/	/	/	/
	35CrMo	0.32~0.40	0.17~0.37	0.40~0.70	/	/	/	/	/	/	/
	42CrMo	0.38~0.45	0.17~0.37	0.50~0.80	/	/	/	/	/	/	/
	12Cr1MoV	0.08~0.15	0.17~0.37	0.40~0.70	≤0.035	≤0.035	≤0.25	≤0.30	0.25~0.35	0.90~1.20	0.15~0.30
ASTMA53	A	≤0.25	/	≤0.95	≤0.05	≤0.06	≤0.40	≤0.40	≤0.15	≤0.40	≤0.08
	B	≤0.30	/	≤1.20	≤0.05	≤0.06	≤0.40	≤0.40	≤0.15	≤0.40	≤0.08
ASTM A519	1016	0.13~0.18	/	0.60~0.90	≤0.04	≤0.05	/	/	/	/	/
	1020	0.18~0.23	/	0.30~0.60	≤0.04	≤0.05	/	/	/	/	/
	1026	0.22~0.18	/	0.60~0.90	≤0.04	≤0.05	/	/	/	/	/
	1035	0.32~0.38	/	0.60~0.90	≤0.04	≤0.05	/	/	/	/	/
	1045	0.43~0.50	/	0.60~0.90	≤0.04	≤0.05	/	/	/	/	/
	4130	0.28~0.33	0.15~0.35	0.40~0.60	≤0.04	≤0.04	/	/	/	/	/
	4140	0.38~0.43	0.15~0.35	0.75~1.0	≤0.03	≤0.03	/	/	/	/	/

Mechanical properties:

Standard	Grade	Tensile strength (MPa)	Yield strength (MPa)	Elongation (%)
GB/T8162 GB/T699 GB/T3077	10	≥335	≥205	≥24
	20	≥390	≥245	≥20
	35	≥510	≥305	≥17
	45	≥590	≥335	≥14
	15Mn	≥410	≥245	≥26
	20Mn	≥450	≥275	≥24
	25Mn	≥490	≥295	≥22
	30Mn	≥540	≥315	≥20
	35Mn	≥560	≥335	≥18
	40Mn	≥590	≥355	≥17
	45Mn	≥620	≥375	≥15
	Q345	≥490	≥325	≥21
	Q390	490~650	≥350	≥18
	Q420	520~680	≥380	≥18
	20Mn2	≥785	≥590	≥40
	30Mn2	≥785	≥635	≥45
	35Mn2	≥835	≥685	≥45
	40Mn2	≥885	≥735	≥45
	45Mn2	≥885	≥735	≥45
	50Mn2	≥930	≥785	≥40
	27SiMn	≥980	≥835	≥40
	20Cr	≥835	≥540	≥10
	40Cr	≥980	≥780	≥9
	38CrSi	≥980	≥835	≥12
	15CrMo	≥440	≥295	≥22
	20CrMo	≥885	≥685	≥12
	30CrMo	≥930	≥735	≥12
	35CrMo	≥980	≥835	≥12
	42CrMo	≥1080	≥930	≥12
	12Cr1MoV	≥490	≥245	≥22
ASTMA53	A	≥330	≥205
	B	≥415	≥240
ASTM A519	1016	≥415	≥245	≥20
	1020	≥410	≥245	≥25
	1026	≥450	≥275	≥24
	1035	≥450	≥370	≥25
	1045	≥565	≥310	≥12
	4130	≥850	≥785	≥12
	4140	≥1020	≥655	≥22

Detailed Photos

 

Certifications

Packaging & Shipping

1.Export sea worthy package + water proof paper
2.Safe loading and fixing Professional teams

Delivery Detail: within 7-10 working days after receiving the deposit or according to your order quantity.

Company Profile

Wuxi Tongno Special Steel Co., Ltd. was founded in 2013, the registered capital of 5 million yuan, for the professional production of seamless steel pipe manufacturing enterprises; after years of rapid development, Wuxi Tongno Special Steel Co., Ltd. now has three types of seamless steel pipe production line;

Wuxi Tongno Special Steel Co., Ltd. has been adhering to the 'quality first, customer first' business philosophy, to ensure that the products of high-precision, wide range of wall thicknesses, small quantities of many varieties, fast-paced characteristics of the production, sales in the domestic advanced level, especially in the small-diameter medium-thick-walled and large-calibre thin-walled alloy seamless steel pipe production at the domestic advanced level. Products at home and abroad enjoy a reputation for a variety of project construction, play their own characteristics of manufacturing energy.

Our Advantages

1. Exceptional Service: We guarantee a response to all inquiries within 12 hours.

2. Certifications: Proudly holding ISO 9001, CE, and SGS certifications.

3. Cost - Effective Quality: Benefit from competitive prices and top - notch quality, as our products are directly sourced from our own factory.

4. Robust Production Capacity: With a monthly output of 20,000 tons, we ensure seamless production.

5. Flexible Payment Terms: We accept various payment methods, including T/T and L/C.

6. Swift Delivery & Standard Export Packaging: Expect quick delivery and products packaged in line with international export standards.

7. Factory - Direct Advantage: Our own factory enables us to offer competitive prices without compromising on quality.

8. Third - Party Testing: We welcome any third - party testing to verify the quality of our products.

9. Expert Team Support: Backed by a professional sales team and a reliable factory.

10.Dedicated to Customization: Your individual specifications are not just accepted-they're the cornerstone of our service. We're committed to delivering on every customized request.

FAQ

 

Q1: What are your primary product offerings?

A1: We are a leading manufacturer and supplier of high-quality steel products, specializing in:
Stainless Steel & Carbon Steel: Sheets/plates, coils, and pipes/tubes (both seamless and welded)
Structural Components: Various bar profiles (round, square, hexagonal, flat, angle), C-channels, and H/I-beams
Custom Fabrications: Tailored solutions to meet specific project requirements

Q2: What quality assurance measures do you have in place?

A2: We maintain stringent quality control through:
Comprehensive Mill Test Certificates provided with all shipments
Optional third-party inspection services (SGS, BV, etc.)
ISO-certified manufacturing processes
Rigorous in-house testing and quality checks

Q3: What are your standard packaging terms?

A3: Our standard packaging includes:
Bundled or coiled goods secured with steel rods/straps
Custom packaging solutions available per customer specifications
Export-grade packaging to ensure optimal protection during transit

Q4: What is your typical delivery timeline?

A4: We offer flexible delivery options:
Stock items: Ready for shipment within 3 business days after deposit confirmation
Made-to-order items: Production typically completed within 7-15 working days post-deposit
Expedited options available for urgent requirements

Q5: What competitive advantages does your company offer?

A5: We differentiate ourselves through:
A team of highly skilled professionals and technical experts
Industry-leading pricing without compromising quality
Unparalleled after-sales support and customer service
Extensive inventory and reliable supply chain management

Q6: Do you provide product samples?

A6: Yes, we're pleased to offer:
Complimentary small samples from existing inventory
Customer only responsible for shipping costs
Custom samples available for specific project needs

Q7: What are your payment terms?

A7: Our standard payment structure:
30% advance payment via T/T to initiate production/order
Remaining 70% balance due prior to shipment
Full documentation including product photos and packaging details provided before final payment
 

Why Choose Us?

√ Quality Assurance: Rigorous testing and certification
√Competitive Pricing: Cost-effective solutions without compromise
√ Reliable Delivery: On-time fulfillment guaranteed
√ Custom Solutions: Tailored to your exact specifications
√ Expert Support: Technical guidance at every stage
For further inquiries or specific requirements, please contact our sales team. We're committed to providing exceptional service and top-quality steel products for your projects.