Size |
Outer Diameter 10.3~610 mm
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Wall Thickness 1.24~52.37 mm,Sizes can be customized
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Length Less Than 12 m
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Standard
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ASTM A312/304/304L/304H/316/316L/317/321/310/904L
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Usage |
Construction building material, curtain wall bracket, guardrail/handrailing material,petroleum oil and gas transmission, coal, decoration, chemical engineering, food processing, agricultural use, indoor pipeline, water heater, boiler, bathtub etc.
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Technique
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Cold Rolled
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Surface Finished
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Polishing grit400/grti600/grti800 ect
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Package |
Inner Packing:Caps at both ends, steel strong trips on every bundle,
Outer Packing:PE Wrapping outside, Export Standard Packing Method(Bundle with steel strip, steel pallet), shipped with 20' or 40' container or in bulk carrier. As Customers' Request. |
Standard | Grade | C | Si | Mn | s | p | Cr |
GB/T 699
GB/T 3639 GB3077 GB/T1591 GB/T 8163-2023 |
10# | 0.07~0.13 | 0.17~0.37 | 0.35~0.65 | ≤0.035 | ≤0.035 | \ |
20# | 0.17~0.23 | 0.17~0.37 | 0.35~0.65 | ≤0.035 | ≤0.035 | \ | |
35# | 0.32~0.39 | 0.17~0.37 | 0.35~0.65 | ≤0.035 | ≤0.035 | \ | |
45# | 0.42~0.50 | 0.17~0.37 | 0.50~0.80 | ≤0.035 | ≤0.035 | \ | |
40Cr | 0.37~0.44 | 0.17~0.37 | 0.50~0.80 | ≤0.035 | ≤0.035 | 0.08~1.10 | |
25Mn | 0.22~0.29 | 0.17~0.37 | 0.70~1.00 | ≤0.035 | ≤0.035 | ≤0.25 | |
Q345B | ≤0.20 | ≤o.50 | ≤1.7 | ≤0.035 | ≤0.035 | ≤0.3 | |
37Mn5 | 0.30~0.39 | 0.15~0.30 | 1.20~1.50 | ≤0.015 | ≤0.020 | \ |
Standard | Inner Diameter(mm) | Inner Diameter Deviation(mm) | |||
GB1801-79 | H7 | H8 | H9 | H10 | |
30 | 0~+21 | 0~+33 | 0~+52 | 0~+84 | |
30-50 | 0~+25 | 0~+39 | 0~+62 | 0~+100 | |
50-80 | 0~+30 | 0~+46 | 0~+74 | 0~+120 | |
80-120 | 0~+35 | 0~+54 | 0~+87 | 0~+140 | |
120-180 | 0~+40 | 0~+63 | 0~+100 | 0~+160 | |
180-250 | 0~+46 | 0~+72 | 0~+115 | 0~+185 | |
250-315 | 0~+52 | 0~+81 | 0~+170 | 0~+210 | |
315-400 | 0~+57 | 0~+89 | 0~+140 | 0~+230 |
Q1: What is your terms of payment?
A: 30% T/T as the upfront deposit, 70% before delivery. We will show you the photos of products and package before you pay the balance.