Welcome to Shandong Sanjin Steel Co., Ltd

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Structural Steel Pipe

Structural Steel Pipe. A wide range of applications rely on structural steel pipe for strength and stability. Gnee steel supply welded and seamless pipe for structural applications to customers in all industries. As a leading steel pipe supplier, Gnee steel offers a large inventory of pipe and tubing sizes from 1/8” NPS to 48” NPS.

Classification ：

Carbon steel pipe

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PRODUCT DETAILS

Product introduction

Structural Steel Pipe

Pipe Type: Structural Pipe, Structural Seamless Pipe, Seamless Structural Pipe
Application: In Structural Engineering and Construction Industry

Specification: OD: 1/8'' ~ 26'' (10.3 ~ 660mm)

                          WT: SCH 10 ~ 160, SCH STD, SCH XS, SCH XXS

                          LENGTH: Fixed Length (5.8/6/11.8/12mtr), SRL, DRL

Standard: ASTM A53/A252/A500/A501, JIS G3444, EN 10210/10219

Ends: Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends

Surface: Bare, Lightly Oiled, Black/Red/Yellow Painting, Zinc/Anti-corrosive Coating

Packing: Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped

 Specification of Structural Steel Pipe 

API 5L/ASTM A106 GR.B, Structural Steel Pipe
公称通径
DN		 外径OD(mm) SCH40(6m/5.8m) SCH40(6m/5.8m) SCH40(6m/5.8m)
壁厚WT 壁厚WT 壁厚WT
(mm) (mm) (mm)
1/4'' 13.7 2.24 3.02 /
3/8'' 17.1 2.31 3.2 /
1/2'' 21.3 2.77 3.73 4.78
3/4'' 26.7 2.87 3.91 5.56
1'' 33.4 3.38 4.55 6.35
1-1/4'' 42.2 3.56 4.85 6.35
1-1/2'' 48.3 3.68 5.08 7.14
2'' 60.3 3.91 5.54 8.74
2-1/2'' 73 5.16 7.01 9.53
3'' 88.9 5.49 7.62 11.13
3-1/2'' 101.6 5.74 8.08 /
4'' 114.3 6.02 8.56 13.49
5'' 141.3 6.55 9.53 15.88
6'' 168.3 7.11 10.97 18.26
8'' 219.1 8.18 12.7 23.01
10'' 273 9.27 15.09 28.58
12'' 323.8 10.31 17.48 33.32
14'' 355.6 9.53 11.13 19.05
16'' 406.4 9.53 12.7 21.44
18'' 457 9.53 14.27 23.83
20'' 508 9.53 15.09 26.19
24'' 610 9.53 17.48 30.96

Technical data

Structural Steel Pipe Chemical Composition and Mechanical Properties 

Standard Grade Chemical Composition (%) Mechanical Properties
ASTM A53 C Si Mn P S Tensile STrength(Mpa) Yield STrength(Mpa)
A ≤0.25 - ≤0.95 ≤0.05 ≤0.06 ≥330 ≥205
B ≤0.30 - ≤1.2 ≤0.05 ≤0.06 ≥415 ≥240
ASTM A106 A ≤0.30 ≥0.10 0.29-1.06 ≤0.035 ≤0.035 ≥415 ≥240
B ≤0.35 ≥0.10 0.29-1.06 ≤0.035 ≤0.035 ≥485 ≥275
ASTM A179 A179 0.06-0.18 - 0.27-0.63 ≤0.035 ≤0.035 ≥325 ≥180
ASTM A192 A192 0.06-0.18 ≤0.25 0.27-0.63 ≤0.035 ≤0.035 ≥325 ≥180
API 5L PSL1 A 0.22 - 0.90 0.030 0.030 ≥331 ≥207
B 0.28 - 1.20 0.030 0.030 ≥414 ≥241
X42 0.28 - 1.30 0.030 0.030 ≥414 ≥290
X46 0.28 - 1.40 0.030 0.030 ≥434 ≥317
X52 0.28 - 1.40 0.030 0.030 ≥455 ≥359
X56 0.28 - 1.40 0.030 0.030 ≥490 ≥386
X60 0.28 - 1.40 0.030 0.030 ≥517 ≥448
X65 0.28 - 1.40 0.030 0.030 ≥531 ≥448
X70 0.28 - 1.40 0.030 0.030 ≥565 ≥483
API 5L PSL2 B 0.24 - 1.20 0.025 0.015 ≥414 ≥241
X42 0.24 - 1.30 0.025 0.015 ≥414 ≥290
X46 0.24 - 1.40 0.025 0.015 ≥434 ≥317
X52 0.24 - 1.40 0.025 0.015 ≥455 ≥359
X56 0.24 - 1.40 0.025 0.015 ≥490 ≥386
X60 0.24 - 1.40 0.025 0.015 ≥517 ≥414
X65 0.24 - 1.40 0.025 0.015 ≥531 ≥448
X70 0.24 - 1.40 0.025 0.015 ≥565 ≥483
X80 0.24 - 1.40 0.025 0.015 ≥621 ≥552


Structural Steel Pipe Chemical Composition and Mechanical Properties 

Standard Grade Chemical Composition Mechanical Properties
C Si Mn P S Cr Ni Cu Tensile Strength(Mpa) Yield Strength(Mpa) Elongation(%)
GB/T8163 10 0.07-0.14 0.17-0.37 0.35-0.65 ≤0.035 ≤0.035 ≤0.15 ≤0.25 ≤0.25 335-457 ≥205 ≥24
20 0.17-0.24 0.17-0.37 0.35-0.65 ≤0.035 ≤0.035 ≤0.25 ≤0.25 ≤0.25 410-550 ≥245 ≥20
Q345 0.12-0.20 0.20-0.55 1.20-1.60 ≤0.045 ≤0.045 - - - 490-665 ≥325 ≥21


Structural Steel Pipe Tolerance 

Pipe types Pipe Szie(mm) Tolerances
Hot rolled OD All ±1% (min ±0.50mm)
WT All +15%, -12.5%
Cold drawn OD 6～10 ±0.20mm
10～30 ±0.40mm
30～50 ±0.45mm
>50 ±1%
WT ≤1 ±0.15mm
>1～3 +15% -10%
>3 +12.5% -10%


Structural Steel Pipe End 

Plain End Wall Thickness less than 0.5 inch, including SCH STD & SCH XS
Plain End (Square Cut) Wall Thickness over 0.5 inch, including SCH XXS
Beveled End Wall Thickness less than 0.5 inch, including SCH STD & SCH XS 
Couplings Outside Diameter equal or less than 2''
Thread Protection Outside Diameter over 4 inch

 

Factory Appearance

Since its establishment, our company has been adhering to the purpose of "quality and progress, honesty and trust", relying on increasingly sophisticated technology and strong production capacity, has developed into a modern steel plate manufacturing and production enterprises. 

 

 

Packing and shipping

Our products include steel plate (stainless steel plate, galvanized plate, carbon plate, etc.), steel strip (stainless steel strip, galvanized steel strip, etc.), steel coil (stainless steel coil, galvanized steel coil, etc.), steel pipe (stainless steel pipe, seamless pipe, oil casing, etc.), color coated coil, corrugated plate and various pipe fittings and profiles. 

 

 

Customer conversation

Since its establishment, our company has always adhered to the principle of "quality and progress, integrity and trust".

 

 

Application area

Suitable for industries such as automotive manufacturing, aerospace, chemical energy, etc.

 

 

Aertificate of honor

All products are manufactured according to ASTM standard, JIS standard, DIN standard, BS standard and other standards.

 

 

COOPERATIVE PARTNER

shrn steel
shiheng speclal steel
ansteel
ansteel
Hangzhou Iron and Steel
Benxi Steel
Tianjin Iron and Steel
Wuhan Iron and Steel
Shagang Group
Panzhihua Steel
Tangshan Iron and Steel
Baotou Steel
Maanshan Iron and Steel Group
Guangzhou Iron and Steel

FAQ

Q:How do you make our business long-term and good relationship?

A:We keep good quality and competitive price to ensure our customers benefit ; We respect every customer as our friend and we sincerely do business and make friends with them. No matter where they come from.

Q:What do your factory do regarding quality control?

A: We have obtained ISO, CE and other certifications. From materials to products, we check every process to maintain good quality.

Q: How long is your delivery time?

A: Generally it is 7-12 days if the goods are in stock. or it is 20-45 days if the goods are not in stock, it is according to quantity.

Q:how can we guarantee quality?

A:Always a pre-production sample before mass production;Always final Inspection before shipment;

Q:what can you buy from us?

A:Carbon steel, stainless steel, galvanized steel, color coated, PPGI, PPGL, steel structure, etc.

Q:What is your terms of payment ?

A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight. Or according to our negotiation between the two parties, we can flexibly determine the payment method.

Q.Do you provide custom made Products service?

A: Yes,if you have your own design , we can produce according to your specification and drawing.

Q:What are the certifications for your products?

A:We have ISO 9001, MTC, third parties’ inspections are all available such SGS, BV ect.

Carbon steel pipe

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Tel : +8615806975270
Email : manager@sdsanjinsteel.com
WhatsApp：+8615806975270
Add : Room 809, Unit 1, Building 7, Block A-4, Jinan Huazhi Wanxiang Tiandi, Lixia District, Jinan City, Shandong Province, China

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